LMC6024
Low Power CMOS Quad Operational Amplifier
General Description
The LMC6024 is a CMOS quad operational amplifier which
can operate from either a single supply or dual supplies. Its
performance features include an input common-mode range
that reaches V
-
, low input bias current and voltage gain (into
100 k
and 5 k
loads) that is equal to or better than widely
accepted bipolar equivalents, while the power supply re-
quirement is less than 1 mW.
This chip is built with National's advanced Double-Poly
Silicon-Gate CMOS process.
See the LMC6022 datasheet for a CMOS dual operational
amplifier with these same features.
Features
n
Specified for 100 k
and 5 k
loads
n
High voltage gain
120 dB
n
Low offset voltage drift
2.5 V/C
n
Ultra low input bias current
40 fA
n
Input common-mode range includes V
-
n
Operating range from +5V to +15V supply
n
Low distortion
0.01% at 1 kHz
n
Slew rate
0.11 V/s
n
Micropower operation
1 mW
Applications
n
High-impedance buffer or preamplifier
n
Current-to-voltage converter
n
Long-term integrator
n
Sample-and-hold circuit
n
Peak detector
n
Medical instrumentation
n
Industrial controls
Connection Diagram
Ordering Information
Temperature Range
Package
NSC
Drawing
Transport
Media
Industrial
-40C
T
J
+85C
LMC6024IN
14-Pin
N14A
Rail
Molded DIP
LMC6024IM
14-Pin
M14A
Rail
Small Outline
Tape and Reel
14-Pin DIP/SO
DS011235-1
Top View
November 1994
LMC6024
Low
Power
CMOS
Quad
Operational
Amplifier
1999 National Semiconductor Corporation
DS011235
www.national.com
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Differential Input Voltage
Supply Voltage
Supply Voltage (V
+
- V
-
)
16V
Lead Temperature
(Soldering, 10 sec.)
260C
Storage Temperature Range
-65C to +150C
Voltage at Output/Input Pin
(V
+
) + 0.3V, (V
-
) - 0.3V
Current at Input Pin
5 mA
Current at Output Pin
18 mA
Current at Power Supply Pin
35 mA
Output Short Circuit to V
+
(Note 12)
Output Short Circuit to V
-
(Note 2)
Junction Temperature
150C
ESD Tolerance (Note 4)
1000V
Power Dissipation
(Note 3)
Operating Ratings
Temperature Range
-40C
T
J
+85C
Supply Voltage Range
4.75V to 15.5V
Power Dissipation
(Note 10)
Thermal Resistance (
JA
), (Note 11)
14-Pin DIP
85C/W
14-Pin SO
115C/W
DC Electrical Characteristics
The following specifications apply for V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V, and R
L
= 1M unless otherwise noted. Bold-
face limits apply at the temperature extremes; all other limits T
J
= 25C.
Typical
LMC6024I
Symbol
Parameter
Conditions
(Note 5)
Limit
Units
(Note 6)
V
OS
Input Offset Voltage
1
9
mV
11
Max
V
OS
/
T
Input Offset Voltage
2.5
V/C
Average Drift
I
B
Input Bias Current
0.04
pA
200
Max
I
OS
Input Offset Current
0.01
pA
100
Max
R
IN
Input Resistance
>
1
Tera
CMRR
Common Mode
0V
V
CM
12V
83
63
dB
Rejection Ratio
V
+
= 15V
61
Min
+PSRR
Positive Power Supply
5V
V
+
15V
83
63
dB
Rejection Ratio
61
Min
-PSRR
Negative Power Supply
0V
V
-
-10V
94
74
dB
Rejection Ratio
73
Min
V
CM
Input Common-Mode
V
+
= 5V and 15V
-0.4
-0.1
V
Voltage Range
For CMRR
50 DB
0
Max
V
+
- 1.9
V
+
- 2.3
V
V
+
- 2.5
Min
A
V
Large Signal Voltage Gain
R
L
= 100 k
(Note 7)
1000
200
V/mV
Sourcing
100
Min
Sinking
500
90
V/mV
40
Min
R
L
= 5 k
(Note 7)
1000
100
V/mV
Sourcing
75
Min
Sinking
250
50
V/mV
20
Min
www.national.com
2
DC Electrical Characteristics
(Continued)
The following specifications apply for V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V, and R
L
= 1M unless otherwise noted. Bold-
face limits apply at the temperature extremes; all other limits T
J
= 25C.
Typical
LMC6024I
Symbol
Parameter
Conditions
(Note 5)
Limit
Units
(Note 6)
V
O
Output Voltage Swing
V
+
= 5V
4.987
4.40
V
R
L
= 100 k
to 2.5V
4.43
Min
0.004
0.06
V
0.09
Max
V
+
= 5V
4.940
4.20
V
R
L
= 5 k
to 2.5V
4.00
Min
0.040
0.25
V
0.35
Max
V
+
= 15V
14.970
14.00
V
R
L
= 100 k
to 7.5V
13.90
Min
0.007
0.06
V
0.09
Max
V
+
= 15V
14.840
13.70
V
R
L
= 5 k
to 7.5V
13.50
Min
0.110
0.32
V
0.40
Max
I
O
Output Current
V
+
= 5V
22
13
mA
Sourcing, V
O
= 0V
9
Min
Sinking V
O
= 5V
21
13
mA
(Note 2)
9
Min
V
+
= 15V
40
23
mA
Sourcing, V
O
= 0V
15
Min
Sinking, V
O
= 13V
39
23
mA
(Note 12)
15
Min
I
S
Supply Current
All Four Amplifiers
160
240
A
V
O
= 1.5V
280
Max
www.national.com
3
AC Electrical Characteristics
The following specifications apply for V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V, and R
L
= 1M unless otherwise noted. Bold-
face limits apply at the temperature extremes; all other limits T
J
= 25C.
Typical
LMC6024I
Symbol
Parameter
Conditions
(Note 5)
Limit
Units
(Note 6)
SR
Slew Rate
(Note 8)
0.11
0.05
V/s
0.03
Min
GBW
Gain-Bandwidth Product
0.35
MHz
M
Phase Margin
50
Deg
G
M
Gain Margin
17
dB
Amp-to-Amp Isolation
(Note 9)
130
dB
e
n
Input-Referred Voltage Noise
F = 1 kHz
42
i
n
Input-Referred Current Noise
F = 1 kHz
0.0002
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings indicate conditions for which the device
is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
The guaranteed specifications apply only for the test conditions listed.
Note 2: Applies to both single-supply and split-supply operation. Continuous short circuit operation at elevated ambient temperature and/or multiple Op Amp shorts
can result in exceeding the maximum allowed junction temperature of 150C. Output currents in excess of
30 mA over long term may adversly affect reliability.
Note 3: The maximum power dissipation is a function of T
J(max)
,
JA
, and T
A
. The maximum allowable power dissipation at any ambient temperature is P
D
= (T
J(max)
- T
A
)/
JA
.
Note 4: Human body model, 100 pF discharge through a 1.5 k
resistor.
Note 5: Typical values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or correlation.
Note 7: V
+
= 15V, V
CM
= 7.5V, and R
L
connected to 7.5V. For Sourcing tests, 7.5V
V
O
11.5V. For Sinking tests, 2.5V
V
O
7.5V.
Note 8: V
+
= 15V. Connected as Voltage Follower with 10V step input. Number specified is the slower of the positive and negative slew rates.
Note 9: Input referred, V
+
= 15V and R
L
= 100 k
connected to 7.5V. Each amp excited in turn with 1 kHz to produce V
O
= 13 V
PP
.
Note 10: For operating at elevated temperatures the device must be derated based on the thermal resistance
JA
with P
D
= (T
J
- T
A
)/
JA
.
Note 11: All numbers apply for packages soldered directly into a PC board.
Note 12: Do not connect output to V
+
when V
+
is greater than 13V or reliability may be adversely affected.
www.national.com
4
Typical Performance Characteristics
V
S
=
7.5V, T
A
= 25C unless otherwise specified
Supply Current
vs Supply Voltage
DS011235-27
Input Bias Current
vs Temperature
DS011235-28
Common-Mode Voltage
Range vs Temperature
DS011235-29
Output Characteristics
Current Sinking
DS011235-30
Output Characteristics
Current Sourcing
DS011235-31
Input Voltage Noise
vs Frequency
DS011235-32
Crosstalk Rejection
vs Frequency
DS011235-33
CMRR vs Frequency
DS011235-34
CMRR vs Temperature
DS011235-35
www.national.com
5
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