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Электронный компонент: G1211

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Ver 1.3
Oct 23, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
1
G1211
Global Mixed-mode Technology Inc.
Rail-to-Rail I/O, 100mA Output Op Amp
Features
Single-Supply Operation: 4V to 6V
High Output Current: 100mA
Low Supply Current: 500 A
Wide Bandwidth: 3 MHz
Slew Rate: 4 V/s
No Phase Reversal
Unity Gain Stable
Ultra-Small, 5-Pin SC70 Package
Applications
Battery-Powered Instruments
Portable Equipment
Audio Signal Conditioning
High-Side/Low-Side Current Sensors
Multimedia Audio
ASIC Input or Output Amplifier
Headphone Driver
General Description
The G1211 is a rail-to-rail input and output sin-
gle-supply amplifiers featuring 100mA output drive
current. This high output current makes these amplifi-
ers excellent for driving either resistive or capacitive
loads. AC performance is very good with 3.0MHz
bandwidth; 4.0V/s slew rate and low distortion. All
are guaranteed to operate from a +4 to +6 volt single
supply.
The very low input bias currents enable the G1211 to
be used for integrators and diode amplification and
other applications requiring low input bias current. The
100mA high output current and supply current is only
850A per amplifier at 5 volts, allowing low current
applications to control high current loads.
Applications include audio amplification for computers,
sound ports, sound cards and set-top boxes. The
G1211 is very stable and capable of driving heavy
capacitive loads. The ability to swing rail-to-rail at the
inputs and outputs enables designers to buffer CMOS
ADC/DACs, ASICs or other wide output swing devices
in single-supply systems.
Ordering Information
PART TEMP.
RANGE
PIN-PACKAGE
G1211
0C to 70C
SC70-5L
Pin Configuration
Tpypical Application Circuit
G1211
2
1
3
4
RL
2K
OUT
VDD
IN
5
+
-
G1211
2
1
3
4
RL
2K
OUT
VDD
IN
5
+
-
5
4
IN+
V
DD
1
3
2
G1211
V
SS
IN-
OUT
+
SC70-5L
5
4
IN+
V
DD
1
3
2
G1211
V
SS
IN-
OUT
+
SC70-5L
Ver 1.3
Oct 23, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
2
G1211
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
(Note1)
SYMBOL PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
DD
Supply
voltage
0
7.0
V
T
stg
Storage
temperature
-65 +150 C
T
amb
Operating ambient temperature
0
+70
C
Notes:
1. Absolute Maximum Ratings are limits beyond which damage to the device may occur.
Thermal Characteristics
SYMBOL PARAMETER VALUE
UNIT
R
th j-a
Thermal resistance from junction to ambient in free air SC70-5L
400
C/W
Electrical Characteristics
V
DD
= 5V; V
SS
= 0V ; T
amb
= 25C; f
i
= 1kHz; R
L
= 2K
; unless otherwise specified.
SYMBOL PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
Supply
voltage
4.0 5.0 6.0 V
Single
4.0 5.0 6.0 V
V
DD
Dual
2
2.5
3.0
V
V
SS
Negative supply voltage (dual)
-2.0
-2.5
-3.0
V
I
DD
Supply current
no load
-
0.85
1.2
mA
P
tot
Total power dissipation
no load
-
4.25
6.0
mW
DC Characteristics
V
I (OS)
Input offset voltage
1.5
10
mV
V
CM
Common mode voltage
0
-
5.0
V
I
B
Input Bias Current
0.05
nA
I
OS
Input Bias Current Offset
0.05
nA
R
IN
Input Resistance
1000
-
M
A
V
Large-Signal Voltage Gain
80
-
dB
I
O
Maximum output current
THD<0.1%, R
L
= 16
-
100
-
mA
R
O
Output resistance
Open-loop, R
L
= 20
-
5.5
-
R
L
= 32
1.0
-
4.0
V
V
O
Output voltage swing
R
L
= 2k
0.1
-
4.9
V
PSRR
Power supply rejection ratio
fi = 1kHz;
V
ripple(peak)
= 1V
60 -
dB
CMRR
Common-Mode Rejection Ratio
56
dB
AC Characteristics
Note 2
THD
Total harmonic distortion
R
L
= 2k
, Note 2
- <
0.1 - %
GBWP
Gain-Bandwidth Product
Open-loop; No Load
-
3.0
-
MHz
SR Slew-Rate
Measured from 30% to 70% of
5Vp-p step
4
V/s
PM Phase
Margin
- 60 - deg
P
O
Maximum output power
Note 1; R
L
= 32
-
135
-
mW
B
Power bandwidth
Unity gain; R
L
= 32
-
25
-
KHz
Notes:
1. Values are proportional to V
DD
; THD < 0.1%
2. V
DD
= 5.0V; V
O (P-P)
= 4.0V (at 0 dB)
Ver 1.3
Oct 23, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G1211
Global Mixed-mode Technology Inc.
Output Swing Range Voltage Figure
Test Condition
T
A
= 25C, A
V
= -1
V+ = 2.5V , V- = - 2.5V , R
L
=2k
V+ = 2.5V , V- = - 2.5V , R
L
=250
V+ = 2.5V , V- = - 2.5V , RL=32
V+ = 2.5V , V- = - 2.5V , R
L
=16
Ver 1.3
Oct 23, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
4
G1211
Global Mixed-mode Technology Inc.
Input Common Mode Voltage Range Figure
Test Condition
T
A
= 25C, A
V
= 1
V+ = 5V, V -
= 0V, RL = 2K
V+ = 5V, V-
= 0V, RL = 250
Ver 1.3
Oct 23, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
5
G1211
Global Mixed-mode Technology Inc.
Large Signal Transient Response Figure
Test Condition
TA=25C, AV=1 , RL = 2k
V+ = 2.5V, V- = -2.5V
Small Signal Transient Response Figure
Test Condition
TA=25C, AV=1 , RL = 32
V+ = 2.5V, V- = -2.5V
Test Condition: Vs = 2.5V, TA = 25C
PSRR
0.0
10.0
20.0
30.0
40.0
50.0
60.0
70.0
0.1
1
10
100
1000
Frequency - kHZ
Power Supply Rejection - dB
PSRR +
PSRR -
Test Condition: Vs = 2.5V, TA = 25C
Open-Loop Gain & Phase vs. Frequency
0.0
20.0
40.0
60.0
80.0
100.0
0.1
1
10
100
1000 10000
Frequency - kHZ
Ga
in
-
d
B
-150
-130
-110
-90
-70
-50
P
h
as
e -
d
e
g
r
ee