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Электронный компонент: OPA2364IDGKR

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OPA363
OPA2363
OPA364
OPA2364
OPA4364
1.8V, 7MHz, 90dB CMRR,
SINGLE-SUPPLY, RAIL-TO-RAIL I/O
OPERATIONAL AMPLIFIER
DESCRIPTION
The OPA363 and OPA364 families are high-performance
CMOS operational amplifiers optimized for very low voltage,
single-supply operation. These miniature, low-cost amplifiers
are designed to operate on single supplies from 1.8V (
0.9V)
to 5.5V (
2.75V). Applications include sensor amplification
and signal conditioning in battery-powered systems.
The OPA363 and OPA364 families offer excellent CMRR
without the crossover associated with traditional complimen-
tary input stages. This results in excellent performance for
driving Analog-to-Digital (A/D) converters without degrada-
tion of differential linearity and THD. The input common-
mode range includes both the negative and positive supplies.
The output voltage swing is within 10mV of the rails.
The OPA363 family includes a shutdown mode. Under logic
control, the amplifiers can be switched from normal operation
to a standby current that is less than 1
A.
The single version is available in the
MicroSIZE SOT23-5
(SOT23-6 for shutdown) and SO-8. The dual version is
available in MSOP-8, MSOP-10, and SO-8 packages. Quad
packages are available in TSSOP-14 and SO-14 packages.
All versions are specified for operation from 40
C to +125
C.
FEATURES
q
1.8V OPERATION
q
MicroSIZE PACKAGES
q
BANDWIDTH: 7MHz
q
CMRR: 90dB (typical)
q
SLEW RATE: 5V/
s
q
LOW OFFSET: 500
V (max)
q
QUIESCENT CURRENT: 750
A/Channel (max)
q
SHUTDOWN MODE: < 1
A/Channel
APPLICATIONS
q
SIGNAL CONDITIONING
q
DATA ACQUISITION
q
PROCESS CONTROL
q
ACTIVE FILTERS
q
TEST EQUIPMENT
www.ti.com
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 2002-2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SBOS259B SEPTEMBER 2002 REVISED FEBRUARY 2003
OPA363
OPA364
OPA2363
OPA2364
OPA4364
SOT23-5
x
SOT23-6
x
MSOP-8
x
MSOP-10
x
SO-8
x
x
x
TSSOP-14
x
SO-14
x
OPA4
364
OPA2
363
OPA236
4
OPA
363
OPA4
364
OPA363, 2363, 364, 2364, 4364
SBOS259B
2
www.ti.com
SPECIFIED
PACKAGE
TEMPERATURE
PACKAGE
ORDERING
TRANSPORT
PRODUCT
PACKAGE-LEAD
DESIGNATOR
(1)
RANGE
MARKING
NUMBER
MEDIA, QUANTITY
OPA363I
SOT23-6
DBV
40
C to +125
C
A40
OPA363IDBVT
Tape and Reel, 250
"
"
"
"
"
OPA363IDBVR
Tape and Reel, 3000
OPA363I
SO-8
D
40
C to +125
C
OPA363
OPA363ID
Rails, 100
"
"
"
"
"
OPA363IDR
Tape and Reel, 2500
OPA2363I
MSOP-10
DGS
40
C to +125
C
BHK
OPA2363IDGST
Tape and Reel, 250
"
"
"
"
"
OPA2363IDGSR
Tape and Reel, 2500
OPA364I
SOT23-5
DBV
40
C to +125
C
A41
OPA364IDBVT
Tape and Reel, 250
"
"
"
"
"
OPA364IDBVR
Tape and Reel, 3000
OPA364I
SO-8
D
40
C to +125
C
OPA364
OPA364ID
Rails, 100
"
"
"
"
"
OPA364IDR
Tape and Reel, 2500
OPA2364I
MSOP-8
DGK
40
C to +125
C
BHL
OPA2364IDGKT
Tape and Reel, 250
"
"
"
"
"
OPA2364IDGKR
Tape and Reel, 2500
OPA2364I
SO-8
D
40
C to +125
C
OPA2364
OPA2364ID
Rails, 100
"
"
"
"
"
OPA2364IDR
Tape and Reel, 2500
OPA363AI
SOT23-6
DBV
40
C to +125
C
A40
OPA363AIDBVT
Tape and Reel, 250
"
"
"
"
"
OPA363AIDBVR
Tape and Reel, 3000
OPA363AI
SO-8
D
40
C to +125
C
OPA363A
OPA363AID
Rails, 100
"
"
"
"
"
OPA363AIDR
Tape and Reel, 2500
OPA2363AI
MSOP-10
DGS
40
C to +125
C
BHK
OPA2363AIDGST
Tape and Reel, 250
"
"
"
"
"
OPA2363AIDGSR
Tape and Reel, 2500
OPA364AI
SOT23-5
DBV
40
C to +125
C
A41
OPA364AIDBVT
Tape and Reel, 250
"
"
"
"
"
OPA364AIDBVR
Tape and Reel, 3000
OPA364AI
SO-8
D
40
C to +125
C
OPA364A
OPA364AID
Rails, 100
"
"
"
"
"
OPA364AIDR
Tape and Reel, 2500
OPA2364AI
SO-8
D
40
C to +125
C
OPA2634A
OPA2364AID
Rails, 100
"
"
"
"
"
OPA2364AIDR
Tape and Reel, 2500
OPA2364AI
MSOP-8
DGK
40
C to +125
C
BHL
OPA2364AIDGKT
Tape and Reel, 250
"
"
"
"
"
OPA2364AIDGKR
Tape and Reel, 2500
OPA4364AI
SO-14
D
40
C to +125
C
OPA4364A
OPA4364AID
Rails, 58
"
"
"
"
"
OPA4364AIDR
Tape and Reel, 2500
OPA4364AI
TSSOP-14
PW
40
C to +125
C
OPA4364A
OPA4364AIPWT
Tape and Reel, 250
"
"
"
"
"
OPA4364AIPWR
Tape and Reel, 2500
NOTES: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Texas
Instruments recommends that all integrated circuits be handled
with appropriate precautions. Failure to observe proper han-
dling and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
Supply Voltage ................................................................................. +5.5V
Signal Input Terminals, Voltage
(2)
........................... 0.5V to (V+) + 0.5V
Current
(2)
..................................................
10mA
Enable Input ............................................................... (V) 0.5V to 5.5V
Output Short-Circuit
(3)
.............................................................. Continuous
Operating Temperature .................................................. 40
C to +150
C
Storage Temperature ..................................................... 65
C to +150
C
Junction Temperature .................................................................... +150
C
Lead Temperature (soldering, 10s) ............................................... +300
C
NOTES: (1) Stresses above these ratings may cause permanent damage.
Exposure to absolute maximum conditions for extended periods may de-
grade device reliability. These are stress ratings only, and functional opera-
tion of the device at these or any other conditions beyond those specified is
not implied. (2) Input terminals are diode-clamped to the power-supply rails.
Input signals that can swing more than 0.5V beyond the supply rails should
be current limited to 10mA or less. (3) Short-circuit to ground one amplifier
per package.
PACKAGE/ORDERING INFORMATION
ABSOLUTE MAXIMUM RATINGS
(1)
OPA363, 2363, 364, 2364, 4364
SBOS259B
3
www.ti.com
PIN CONFIGURATIONS
Top View
1
2
3
4
5
10
9
8
7
6
+V
V
OUT
B
In B
+In B
Enable B
V
OUT
A
In A
+In A
V
Enable A
OPA2363
MSOP-10
B
A
1
2
3
4
8
7
6
5
V+
Out B
In B
+In B
Out A
In A
+In A
V
OPA2364
MSOP-8, SO-8
1
2
3
4
8
7
6
5
Enable
V+
V
OUT
NC
(1)
NC
In
+In
V
OPA363
SO-8
1
2
3
4
8
7
6
5
NC
V+
V
OUT
NC
NC
In
+In
V
OPA364
SO-8
1
2
3
5
4
V+
In
V
OUT
V
+In
OPA364
(1)
SOT23-5
A41
1
2
3
6
5
4
V+
Enable
In
V
OUT
V
+In
OPA363
(1)
A40
SOT23-6
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
OUT
D
In D
+In D
V
+In C
In C
V
OUT
C
V
OUT
A
In A
+In A
V+
+In B
In B
V
OUT
B
OPA4364
SO-14, TSSOP-14
B
C
D
A
NOTE: (1) Orient according to marking.
NC = No Internal Connection.
OPA363, 2363, 364, 2364, 4364
SBOS259B
4
www.ti.com
ELECTRICAL CHARACTERISTICS: V
S
= +1.8V to +5.5V
Boldface limits apply over the specified temperature range, T
A
= 40
C to +125
C.
At T
A
= +25
C, R
L
= 10k
connected to V
S
/2, and V
OUT
= V
S
/ 2, V
CM
= V
S
/2, unless otherwise noted.
OPAx363, OPAx364
PARAMETER
CONDITION
MIN
TYP
MAX
UNITS
OFFSET VOLTAGE
Input Offset Voltage, OPA363I, OPA364I
V
OS
V
S
= +5V
500
V
OPA2363I, OPA2364I
900
V
OPA363AI, OPA364AI, OPA2363AI, OPA2364AI, OPA4364AI
1
2.5
mV
Drift
dV
OS
/dT
3
V/
C
vs Power Supply
PSRR
V
S
= 1.8V to 5.5V, V
CM
= 0
80
330
V/V
Channel Separation, dc
1
V/V
INPUT BIAS CURRENT
Input Bias Current
I
B
1
10
pA
over Temperature
See Typical Characteristics
Input Offset Current
I
OS
1
10
pA
NOISE
Input Voltage Noise, f = 0.1Hz to 10Hz
e
n
10
Vp-p
Input Voltage Noise Density, f = 10kHz
e
n
17
nV/
Hz
Input Current Noise Density, f = 10kHz
i
n
0.6
fA/
Hz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
V
CM
(V) 0.1
(V+) + 0.1
V
Common-Mode Rejection Ratio
CMRR
(V) 0.1V < V
CM
< (V+) + 0.1V
74
90
dB
INPUT CAPACITANCE
Differential
2
pF
Common-Mode
3
pF
OPEN-LOOP GAIN
R
L
= 10k
, 100mV < V
O
< (V+) 100mV
Open-Loop Voltage Gain
A
OL
94
100
dB
OPA4364AI
90
dB
over Temperature
V
S
= +1.8V to +5.5V
86
dB
FREQUENCY RESPONSE
C
L
= 100pF
Gain Bandwidth Product
GBW
7
MHz
Slew Rate
SR
G
= +1
5
V/
s
Settling Time, 0.1%
t
S
V
S
= +5V, 4V Step, G = +1
1
s
0.01%
V
S
= +5V, 4V Step, G = +1
1.5
s
Overload Recovery Time
V
IN
Gain > V
S
0.8
s
Total Harmonic Distortion + Noise
THD+N
V
S
= +5V, G = +1, f = 20Hz to 20kHz
0.002
%
OUTPUT
Voltage Output Swing from Rail
R
L
= 10k
10
20
mV
over Temperature
R
L
= 10k
20
mV
Short-Circuit Current
I
SC
See Typical Characteristics
mA
Capacitive Load Drive
C
LOAD
See Typical Characteristics
SHUTDOWN (for OPAx363)
t
OFF
1
s
t
ON
(1)
20
s
V
L
(shutdown)
(V) + 0.8
V
V
H
(amplifier is active)
0.75 (V+)
5.5
V
I
QSD
0.9
A
POWER SUPPLY
Specified Voltage Range
V
S
1.8
5.5
V
Operating Voltage Range
1.8 to 5.5
V
Quiescent Current (per amplifier)
I
Q
V
S
= +1.8V
650
750
A
V
S
= +3.6V
850
1000
A
V
S
= +5.5V
1.1
1.4
mA
TEMPERATURE RANGE
Specified Range
40
+125
C
Operating Range
40
+150
C
Storage Range
65
+150
C
Thermal Resistance
JA
SOT23-5, SOT23-6
200
C/W
MSOP-8, MSOP-10, SO-8
150
C/W
TSSOP-14, SO-14
100
C/W
NOTE: (1) Part is considered enabled when input offset voltage returns to specified range.
OPA363, 2363, 364, 2364, 4364
SBOS259B
5
www.ti.com
TYPICAL CHARACTERISTICS
At T
CASE
= +25
C, R
L
= 10k
, and connected to V
S
/ 2, V
OUT
= V
S
/ 2, V
CM
= V
S
/ 2, unless otherwise noted.
1.4
1.2
1.0
0.8
0.6
0.4
QUIESCENT CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
Quiescent Current (mA)
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Per Amplifier
1
0.1
0.01
0.001
0.0001
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
Frequency (Hz)
THD+N (%)
10
100
1k
10k
100k
G = 10, R
L
= 2k
G = 10, R
L
= 10k
G = 1, R
L
= 10k
G = 1, R
L
= 2k
(V
S
= 5V, V
OUT
= 1Vrms)
100
90
80
70
60
50
40
30
20
10
0
COMMON-MODE REJECTION RATIO vs FREQUENCY
Frequency (Hz)
CMRR (dB)
10
1k
100
100k
10k
1M
10M
100
80
60
40
20
0
POWER-SUPPLY REJECTION RATIO
vs FREQUENCY
Frequency (Hz)
PSRR (dB)
1
10
100
1k
10k
100k
10M
1M
1
0.1
0.01
0.001
0.0001
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
Frequency (Hz)
THD+N (%)
10
100
1k
10k
100k
G = 10, R
L
= 2k
V
S
= 1.8V
V
OUT
= 10dBv
G = 10, R
L
= 2k
V
S
= 5V
G = 10, R
L
= 10k
V
S
= 1.8V, 5V
G = 1, R
L
= 2k
V
S
= 1.8V
G = 1,
R
L
= 2k
V
S
= 5V
G = 1,
R
L
= 10k
V
S
= 1.8V, 5V
120
100
80
60
40
20
0
20
OPEN-LOOP GAIN/PHASE vs FREQUENCY
Frequency (Hz)
Voltage Gain (dB)
0
30
60
90
120
150
180
Phase (
)
10
100
1k
10k
100k
1M
10M
100M
OPA363, 2363, 364, 2364, 4364
SBOS259B
6
www.ti.com
TYPICAL CHARACTERISTICS
(Cont.)
At T
CASE
= +25
C, R
L
= 10k
, and connected to V
S
/2, V
OUT
= V
S
/ 2, V
CM
= V
S
/ 2, unless otherwise noted.
120
100
80
60
40
20
0
SHORT-CIRCUIT CURRENT vs SUPPLY VOLTAGE
Supply Voltage (V)
Short-Circuit Current (mA)
1.5
2.0
+I
SC
I
SC
2.5
3.0
3.5
4.0
4.5
5.0
5.5
1000
100
10
INPUT VOLTAGE NOISE SPECTRAL DENSITY
vs FREQUENCY
Frequency (Hz)
Input Voltage Noise (nV/
Hz)
10
100
1k
10k
100k
3
2
1
0
1
2
3
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
Output Current (mA)
Output Voltage (V)
0
10
20
30
40
50
60
70
80
90
100
T
A
= 40
C
V
S
=
2.5V
V
S
=
1.65V
V
S
=
0.9V
V
S
=
2.5V
V
S
=
1.65V
T
A
= +25
C
T
A
= +125
C
10k
1k
100
10
1
INPUT OFFSET CURRENT vs TEMPERATURE
Temperature (
C)
Input Offset Current (pA)
50
25
0
25
50
75
100
125
INPUT BIAS CURRENT vs TEMPERATURE
Temperature (
C)
Input Bias Current (pA)
50
25
0
25
50
75
100
125
10k
1k
100
10
1
4
2
0
2
4
6
8
10
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
Common-Mode Voltage (V)
Input Bias Current (pA)
0.5
0.5
1.5
2.5
3.5
4.5
5.5
V
CM
= +5.1V
V
CM
= 0.1V
OPA363, 2363, 364, 2364, 4364
SBOS259B
7
www.ti.com
TYPICAL CHARACTERISTICS
(Cont.)
At T
CASE
= +25
C, R
L
= 10k
, and connected to V
S
/ 2, V
OUT
= V
S
/ 2, V
CM
= V
S
/ 2, unless otherwise noted.
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
Load Capacitance (pF)
100
G = +1
1k
Overshoot (%)
60
50
40
30
20
10
0
G = +10
SETTLING TIME vs CLOSED-LOOP GAIN
Closed-Loop Gain (V/V)
1
10
0.01%
100
Settling Time (
s)
100
10
1
0.1
0.1%
OFFSET DRIFT DISTRIBUTION
Offset Voltage Drift (
V/
C)
0
Percent of Amplifiers (%)
20
15
10
5
0
1
2
3
4
5
6
7
8
9
> 10
OUTPUT ENABLE CHARACTERISTIC
(V
S
= 5V, V
OUT
= 20kHz Sinusoid)
V
OUT
V
ENABLE
50
s/div
OFFSET VOLTAGE PRODUCTION DISTRIBUTION
Offset Voltage (mV)
Percent of Amplifiers (%)
16
14
12
10
8
6
4
2
0
Typical Production
Distribution of
Packaged Units
OPA36xAI
0
1.0
2.0
2.5
2.5
2.0
1.0
CHANNEL SEPARATION vs FREQUENCY
Frequency (Hz)
10
10k
100k
1M
100
1k
10M
Channel Separation (dB)
130
120
110
100
90
80
70
60
50
40
OPA363, 2363, 364, 2364, 4364
SBOS259B
8
www.ti.com
APPLICATIONS INFORMATION
The OPA363 and OPA364 series op amps are rail-to-rail
operational amplifiers with excellent CMRR, low noise, low
offset, and wide bandwidth on supply voltages as low as
0.9V. The OPA363 features an additional pin for shutdown/
enable function. These families do not exhibit phase reversal
and are unity-gain stable. Specified over the industrial tem-
perature range of 40
C to +125
C, the OPA363 and OPA364
families offer precision performance for a wide range of
applications.
RAIL-TO-RAIL INPUT
The OPA363 and OPA364 feature excellent rail-to-rail opera-
tion, with supply voltages as low as
0.9V. The input com-
mon-mode voltage range of the OPA363 and OPA364 family
extends 100mV beyond supply rails. The unique input topol-
ogy of the OPA363 and OPA364 eliminates the input offset
transition region typical of most rail-to-rail complimentary
stage operational amplifiers, allowing the OPA363 and
OPA364 to provide superior common-mode performance
over the entire common-mode input range, as seen in Figure 1.
This feature prevents degradation of the differential linearity
error and THD when driving A/D converters. A simplified
schematic of the OPA363 and OPA364 is shown in Figure 2.
OPERATING VOLTAGE
The OPA363 and OPA364 series op amp parameters are fully
specified from +1.8V to +5.5V. Single 0.1
F bypass capaci-
tors should be placed across supply pins and as close to the
part as possible. Supply voltages higher than 5.5V (absolute
maximum) may cause permanent damage to the amplifier.
Many specifications apply from 40
C to +125
C. Parameters
that vary significantly with operating voltages or temperature
are shown in the Typical Characteristics.
FIGURE 1. OPA363 and OPA364 have Linear Offset Over
Entire Common-Mode Range.
FIGURE 2. Simplified Schematic.
TYPICAL CHARACTERISTICS
(Cont.)
At T
CASE
= +25
C, R
L
= 10k
, and connected to V
S
/2, V
OUT
= V
S
/ 2, V
CM
= V
S
/ 2, unless otherwise noted.
SMALL-SIGNAL STEP RESPONSE
(C
L
= 100pF)
50mV/div
250ns/div
LARGE-SIGNAL STEP RESPONSE
(C
L
= 100pF)
1V/div
1
s/div
Common-Mode Voltage (V)
0.2
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
V
OS
(mV)
1.0
0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
Competitors
OPA363 and OPA364
Regulated
Charge Pump
V
OUT
= V
CC
+1.8V
Patent Pending
Very Low Ripple
Topology
I
BIAS
V
CC
+ 1.8V
I
BIAS
I
BIAS
I
BIAS
V
S
I
BIAS
V
OUT
V
IN
V
IN
+
OPA363, 2363, 364, 2364, 4364
SBOS259B
9
www.ti.com
ENABLE FUNCTION
The shutdown (enable) function of the OPA363 is referenced
to the negative supply voltage of the operational amplifier. A
logic level HIGH enables the op amp. A valid logic HIGH is
defined as voltage > 75% of the positive supply applied to the
enable pin. The valid logic HIGH signal can be as much as
5.5V above the negative supply, independent of the positive
supply voltage. A valid logic LOW is defined as < 0.8V above
the negative supply pin. If dual or split power supplies are
used, care should be taken to ensure logic input signals are
properly referred to the negative supply voltage. This pin
should be connected to a valid high or low voltage or driven,
not left open circuit.
The logic input is a high-impedance CMOS input. Dual op
amps are provided separate logic inputs. For battery-oper-
ated applications, this feature may be used to greatly reduce
the average current and extend battery life. The enable time
is 20
s; disable time is 1
s. When disabled, the output
assumes a high-impedance state. This allows the OPA363 to
be operated as a "gated" amplifier, or to have its output
multiplexed onto a common analog output bus.
CAPACITIVE LOAD
The OPA363 and OPA364 series op amps can drive a wide
range of capacitive loads. However, all op amps under
certain conditions may become unstable. Op amp configura-
tion, gain, and load value are just a few of the factors to
consider when determining stability. An op amp in unity-gain
configuration is the most susceptible to the effects of capaci-
tive load. The capacitive load reacts with the output resis-
tance of the op amp to create a pole in the small-signal
response, which degrades the phase margin.
In unity gain, the OPA363 and OPA364 series op amps
perform well with a pure capacitive load up to approximately
1000pF. The ESR (Equivalent Series Resistance) of the
loading capacitor may be sufficient to allow the OPA363 and
OPA364 to directly drive very large capacitive loads (> 1
F).
Increasing gain enhances the amplifier's ability to drive more
capacitance. See the typical characteristic "Small-Signal Over-
shoot vs Capacitive Load."
One method of improving capacitive load drive in the unity-
gain configuration is to insert a 10
to 20
resistor in series
with the output, as shown in Figure 3. This significantly
reduces ringing with large capacitive loads. However, if there
is a resistive load in parallel with the capacitive load, it
creates a voltage divider introducing a dc error at the output
and slightly reduces output swing. This error may be insignifi-
cant. For instance, with R
L
= 10k
and R
S
= 20
, there is
only about a 0.2% error at the output.
INPUT AND ESD PROTECTION
All OPA363 and OPA364 pins are static protected with
internal ESD protection diodes tied to the supplies. These
diodes will provide overdrive protection if the current is
externally limited to 10mA, as stated in the absolute maxi-
mum ratings and shown in Figure 4.
ACHIEVING OUTPUT SWING TO
THE OP AMP'S NEGATIVE RAIL
Some applications require an accurate output voltage swing
from 0V to a positive full-scale voltage. A good single supply op
amp may be able to swing within a few mV of single supply
ground, but as the output is driven toward 0V, the output stage
of the amplifier will prevent the output from reaching the
negative supply rail of the amplifier.
The output of the OPA363 or OPA364 can be made to swing to
ground, or slightly below, on a single supply power source. To do
so requires use of another resistor and an additional, more
negative power supply than the op amp's negative supply. A
pulldown resistor may be connected between the output and the
additional negative supply to pull the output down below the value
that the output would otherwise achieve as shown in Figure 5.
FIGURE 3. Improving Capacitive Load Drive.
FIGURE 4. Input Current Protection.
FIGURE 5. OPA363 and OPA364 Swing to Ground.
10
to
20
V+
V
IN
V
OUT
R
S
R
L
C
L
OPAx363
OPAx364
V
OUT
R
P
= 10k
500
A
OPA363
OPA364
V
IN
V+ = +5V
Op Amp's
Negative
Supply
Grounded
V = 5V
(Additional
Negative Supply)
5k
OPAx363
10mA max
V+
V
IN
V
OUT
I
OVERLOAD
This technique will not work with all op amps. The output
stage of the OPA363 and OPA364 allows the output voltage
to be pulled below that of most op amps, if approximately
500
A is maintained through the output stage. To calculate
the appropriate value load resistor and negative supply,
R
L
= V/500
A. The OPA363 and OPA364 have been
characterized to perform well under the described conditions,
maintaining excellent accuracy down to 0V and as low as
10mV. Limiting and nonlinearity occur below 10mV, with
linearity returning as the output is again driven above
10mV.
OPA363, 2363, 364, 2364, 4364
SBOS259B
10
www.ti.com
FIGURE 7. The OPA363 and OPA364 Directly Drive the
ADS8324.
FIGURE 9. OPA2363 Configured as Half of a Dual Stereo Headphone Driver.
FIGURE 8. Driving the 12-Bit A/D Converter on the MSP430.
BUFFERED REFERENCE VOLTAGE
Many single-supply applications require a mid-supply refer-
ence voltage. The OPA363 and OPA364 offer excellent
capacitive load drive capability, and can be configured to
provide a 0.9V reference voltage, as can be seen in Figure 6.
For appropriate loading considerations, see the "Capacitive
Load" section.
AUDIO APPLICATIONS
The OPA363 and OPA364 op amp family has linear offset
voltage over the entire input common-mode range. Com-
bined with low-noise, this feature makes the OPA363 and
OPA364 suitable for audio applications. Single supply 1.8V
operation allows the OPA2363 and OPA2364 to be optimal
candidates for dual stereo-headphone drivers and micro-
phone pre-amplifiers in portable stereo equipment, see Fig-
ures 9 and 10.
FIGURE 6. The OPA363 and OPA364 Provide a Stable
Reference Voltage.
V+
R
1
10k
R
2
10k
0.9V
OPAx363
OPAx364
V+
C
L
= 1
F
ADS8324
V+ = 1.8V
V+ = 1.8V
OPA363
OPA364
V
IN
100
1nF
MSP430
V+
V+
V
IN
100
1nF
OPA363
OPA364
V+
V
20k
1/2
OPA2363
One of Right or Left Channel
One of Right or Left
Headphone Out
10k
20k
V+
V
Internally
Biased
20k
1/2
TPS6100
20k
10k
1
F
47pF
V
DIRECTLY DRIVING THE ADS8324 AND
THE MSP430
The OPA363 and OPA364 series op amps are optimized for
driving medium speed (up to 100kHz) sampling A/D convert-
ers. However, they also offer excellent performance for
higher speed converters. The no crossover input stage of the
OPA363 and OPA364 directly drive A/D converters without
degradation of differential linearity and THD. They provide an
effective means of buffering the A/D converters input capaci-
tance and resulting charge injection while providing signal
gain. Figure 7 and Figure 8 show the OPA363 and OPA364
configured to drive the ADS8324 and the 12-bit
A/D converter on the MSP430.
OPA363, 2363, 364, 2364, 4364
SBOS259B
11
www.ti.com
ACTIVE FILTERING
Low harmonic distortion and noise specifications plus high
gain and slew rate make the OPA363 and OPA364 optimal
candidates for active filtering. Figure 11 shows the OPA2363
configured as a low-distortion, 3rd-order GIC (General Immit-
tance Converter) filter. Figure 12 shows the implementation
of a Sallen-Key, 3-pole, low-pass Bessel filter.
FIGURE 11. The OPA2363 as a 3rd-Order, 40kHz, Low-Pass GIC Filter.
FIGURE 10. Microphone Preamplifier.
FIGURE 12. The OPA363 or OPA364 Configured as a 3-Pole, 20kHz, Sallen-Key Filter.
R
11
3.92k
R
12
3.92k
C
13
1000pF
R
14
3.48k
C
15
1000pF
V
OUT
V
IN
R
1
3.92k
R
3
1.33k
C
4
1000pF
1/2
OPA2363
1/2
OPA2363
3
2
1
6
5
7
2
3
6
OPA363
3.3V
49k
V
OUT
OPAx363
OPAx364
Clean 3.3V Supply
1
F
4k
6k
Electret
Microphone
5k
V
OUT
V
IN
=
1Vrms
OPA363
150k
19.5k
220pF
1.8k
3.3nF
47pF
OPA363, 2363, 364, 2364, 4364
SBOS259B
12
www.ti.com
DBV (R-PDSO-G6)
PLASTIC SMALL-OUTLINE
0,10
M
0,20
0,95
0 8
0,25
0,55
0,35
Gage Plane
0,15 NOM
4073253-5/G 01/02
2,60
3,00
0,50
0,25
1,50
1,70
4
6
3
1
2,80
3,00
1,45
0,95
0,05 MIN
Seating Plane
6X
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. Leads 1, 2, 3 may be wider than leads 4, 5, 6 for package orientation.
PACKAGE DRAWINGS
OPA363, 2363, 364, 2364, 4364
SBOS259B
13
www.ti.com
PACKAGE DRAWINGS (Cont.)
D (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
8 PINS SHOWN
8
0.197
(5,00)
A MAX
A MIN
(4,80)
0.189
0.337
(8,55)
(8,75)
0.344
14
0.386
(9,80)
(10,00)
0.394
16
DIM
PINS **
4040047/E 09/01
0.069 (1,75) MAX
Seating Plane
0.004 (0,10)
0.010 (0,25)
0.010 (0,25)
0.016 (0,40)
0.044 (1,12)
0.244 (6,20)
0.228 (5,80)
0.020 (0,51)
0.014 (0,35)
1
4
8
5
0.150 (3,81)
0.157 (4,00)
0.008 (0,20) NOM
0
8
Gage Plane
A
0.004 (0,10)
0.010 (0,25)
0.050 (1,27)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
D. Falls within JEDEC MS-012
OPA363, 2363, 364, 2364, 4364
SBOS259B
14
www.ti.com
DGS (S-PDSO-G10)
PLASTIC SMALL-OUTLINE PACKAGE
0,69
0,41
0,25
0,15 NOM
Gage Plane
4073272/B 08/01
4,98
0,17
6
3,05
4,78
2,95
10
5
3,05
2,95
1
0,27
0,15
0,05
1,07 MAX
Seating Plane
0,10
0,50
M
0,08
0
6
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
A. Falls within JEDEC MO-187
PACKAGE DRAWINGS (Cont.)
OPA363, 2363, 364, 2364, 4364
SBOS259B
15
www.ti.com
PACKAGE DRAWINGS (Cont.)
DBV (R-PDSO-G5)
PLASTIC SMALL-OUTLINE
0,10
M
0,20
0,95
0
8
0,25
0,35
0,55
Gage Plane
0,15 NOM
4073253-4/G 01/02
2,60
3,00
0,50
0,30
1,50
1,70
4
5
3
1
2,80
3,00
0,95
1,45
0,05 MIN
Seating Plane
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. Falls within JEDEC MO-178
OPA363, 2363, 364, 2364, 4364
SBOS259B
16
www.ti.com
PACKAGE DRAWINGS (Cont.)
DGK (R-PDSO-G8)
PLASTIC SMALL-OUTLINE PACKAGE
0,69
0,41
0,25
0,15 NOM
Gage Plane
4073329/C 08/01
4,98
0,25
5
3,05
4,78
2,95
8
4
3,05
2,95
1
0,38
1,07 MAX
Seating Plane
0,65
M
0,08
0
6
0,10
0,15
0,05
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion.
D. Falls within JEDEC MO-187
OPA363, 2363, 364, 2364, 4364
SBOS259B
17
www.ti.com
PACKAGE DRAWINGS (Cont.)
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,65
M
0,10
0,10
0,25
0,50
0,75
0,15 NOM
Gage Plane
28
9,80
9,60
24
7,90
7,70
20
16
6,60
6,40
4040064/F 01/97
0,30
6,60
6,20
8
0,19
4,30
4,50
7
0,15
14
A
1
1,20 MAX
14
5,10
4,90
8
3,10
2,90
A MAX
A MIN
DIM
PINS **
0,05
4,90
5,10
Seating Plane
0
8
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-153
PACKAGING INFORMATION
ORDERABLE DEVICE
STATUS(1)
PACKAGE TYPE
PACKAGE DRAWING
PINS
PACKAGE QTY
OPA2363AIDGSR
ACTIVE
VSSOP
DGS
10
2500
OPA2363AIDGST
ACTIVE
VSSOP
DGS
10
250
OPA2363IDGSR
ACTIVE
VSSOP
DGS
10
2500
OPA2363IDGST
ACTIVE
VSSOP
DGS
10
250
OPA2364AID
ACTIVE
SOIC
D
8
100
OPA2364AIDGKR
ACTIVE
VSSOP
DGK
8
2500
OPA2364AIDGKT
ACTIVE
VSSOP
DGK
8
250
OPA2364AIDR
ACTIVE
SOIC
D
8
2500
OPA2364ID
ACTIVE
SOIC
D
8
100
OPA2364IDGKR
ACTIVE
VSSOP
DGK
8
2500
OPA2364IDGKT
ACTIVE
VSSOP
DGK
8
250
OPA2364IDR
ACTIVE
SOIC
D
8
2500
OPA363AID
ACTIVE
SOIC
D
8
100
OPA363AIDBVR
ACTIVE
SOP
DBV
6
3000
OPA363AIDBVT
ACTIVE
SOP
DBV
6
250
OPA363AIDR
ACTIVE
SOIC
D
8
2500
OPA363ID
ACTIVE
SOIC
D
8
100
OPA363IDBVR
ACTIVE
SOP
DBV
6
3000
OPA363IDBVT
ACTIVE
SOP
DBV
6
250
OPA363IDR
ACTIVE
SOIC
D
8
2500
OPA364AID
ACTIVE
SOIC
D
8
100
OPA364AIDBVR
ACTIVE
SOP
DBV
5
3000
OPA364AIDBVT
ACTIVE
SOP
DBV
5
250
OPA364AIDR
ACTIVE
SOIC
D
8
2500
OPA364ID
ACTIVE
SOIC
D
8
100
OPA364IDBVR
ACTIVE
SOP
DBV
5
3000
OPA364IDBVT
ACTIVE
SOP
DBV
5
250
OPA364IDR
ACTIVE
SOIC
D
8
2500
OPA4364AID
ACTIVE
SOIC
D
14
58
OPA4364AIDR
ACTIVE
SOIC
D
14
2500
OPA4364AIPWR
ACTIVE
TSSOP
PW
14
2500
OPA4364AIPWT
ACTIVE
TSSOP
PW
14
250
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
PACKAGE OPTION ADDENDUM
www.ti.com
16-Jul-2004
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