LMC6061
Precision CMOS Single Micropower Operational
Amplifier
General Description
The LMC6061 is a precision single low offset voltage, mi-
cropower operational amplifier, capable of precision single
supply operation. Performance characteristics include ultra
low input bias current, high voltage gain, rail-to-rail output
swing, and an input common mode voltage range that in-
cludes ground. These features, plus its low power consump-
tion, make the LMC6061 ideally suited for battery powered
applications.
Other applications using the LMC6061 include precision
full-wave rectifiers, integrators, references, sample-and-hold
circuits, and true instrumentation amplifiers.
This device is built with National's advanced double-Poly
Silicon-Gate CMOS process.
For designs that require higher speed, see the LMC6081
precision single operational amplifier.
For a dual or quad operational amplifier with similar features,
see the LMC6062 or LMC6064 respectively.
PATENT PENDING
Features
(Typical Unless Otherwise Noted)
n
Low offset voltage:
100 V
n
Ultra low supply current:
20 A
n
Operates from 4.5V to 15V single supply
n
Ultra low input bias current:
10 fA
n
Output swing within 10 mV of supply rail, 100k load
n
Input common-mode range includes V
-
n
High voltage gain:
140 dB
n
Improved latchup immunity
Applications
n
Instrumentation amplifier
n
Photodiode and infrared detector preamplifier
n
Transducer amplifiers
n
Hand-held analytic instruments
n
Medical instrumentation
n
D/A converter
n
Charge amplifier for piezoelectric transducers
Connection Diagram
8-Pin DIP/SO
01142201
Top View
Distribution of LMC6061
Input Offset Voltage
(T
A
= +25C)
01142215
April 2001
LMC6061
Precision
CMOS
Single
Micropower
Operational
Amplifier
2001 National Semiconductor Corporation
DS011422
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
Voltage at Input/Output Pin
(V
+
) +0.3V,
(V
-
) -0.3V
Supply Voltage (V
+
- V
-
)
16V
Output Short Circuit to V
+
(Note 10)
Output Short Circuit to V
-
(Note 2)
Lead Temperature
260C
(Soldering, 10 sec.)
Storage Temp. Range
-65C to +150C
Junction Temperature
150C
ESD Tolerance (Note 4)
2 kV
Current at Input Pin
10 mA
Current at Output Pin
30 mA
Current at Power Supply Pin
40 mA
Power Dissipation
(Note 3)
Operating Ratings
(Note 1)
Temperature Range
LMC6061AM
-55C
T
J
+125C
LMC6061AI, LMC6082I
-40C
T
J
+85C
Supply Voltage
4.5V
V
+
15.5V
Thermal Resistance (
JA
) (Note
11)
N Package, 8-Pin Molded DIP
115C/W
M Package, 8-Pin Surface
Mount
193C/W
Power Dissipation
(Note 9)
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C. Boldface limits apply at the temperature extremes. V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V and R
L
>
1M unless otherwise specified.
Typ
LMC6061AM
LMC6061AI
LMC6061I
Symbol
Parameter
Conditions
(Note 9)
Limit
Limit
Limit
Units
(Note 6)
(Note 6)
(Note 6)
V
OS
Input Offset Voltage
100
350
350
800
V
1200
900
1300
Max
TCV
OS
Input Offset Voltage
1.0
V/C
Average Drift
I
B
Input Bias Current
0.010
pA
100
4
4
Max
I
OS
Input Offset Current
0.005
pA
100
2
2
Max
R
IN
Input Resistance
>
10
Tera
CMRR
Common Mode
0V
V
CM
12.0V
85
75
75
66
dB
Rejection Ratio
V
+
= 15V
70
72
63
Min
+PSRR
Positive Power Supply
5V
V
+
15V
85
75
75
66
dB
Rejection Ratio
V
O
= 2.5V
70
72
63
Min
-PSRR
Negative Power Supply
0V
V
-
-10V
100
84
84
74
dB
Rejection Ratio
70
81
71
Min
V
CM
Input Common-Mode
V
+
= 5V and 15V
-0.4
-0.1
-0.1
-0.1
V
Voltage Range
for CMRR
60 dB
0
0
0
Max
V
+
- 1.9
V
+
- 2.3
V
+
- 2.3
V
+
- 2.3
V
V
+
- 2.6
V
+
- 2.5
V
+
- 2.5
Min
A
V
Large Signal
R
L
= 100 k
Sourcing
4000
400
400
300
V/mV
Voltage Gain
(Note 7)
200
300
200
Min
Sinking
3000
180
180
90
V/mV
70
100
60
Min
R
L
= 25 k
Sourcing
3000
400
400
200
V/mV
(Note 7)
150
150
80
Min
Sinking
2000
100
100
70
V/mV
35
50
35
Min
LMC6061
www.national.com
2
DC Electrical Characteristics
(Continued)
Unless otherwise specified, all limits guaranteed for T
J
= 25C. Boldface limits apply at the temperature extremes. V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V and R
L
>
1M unless otherwise specified.
Typ
LMC6061AM
LMC6061AI
LMC6061I
Symbol
Parameter
Conditions
(Note 9)
Limit
Limit
Limit
Units
(Note 6)
(Note 6)
(Note 6)
V
O
Output Swing
V
+
= 5V
4.995
4.990
4.990
4.950
V
R
L
= 100 k
to 2.5V
4.970
4.980
4.925
Min
0.005
0.010
0.010
0.050
V
0.030
0.020
0.075
Max
V
+
= 5V
4.990
4.975
4.975
4.950
V
R
L
= 25 k
to 2.5V
4.955
4.965
4.850
Min
0.010
0.020
0.020
0.050
V
0.045
0.035
0.150
Max
V
+
= 15V
14.990
14.975
14.975
14.950
V
R
L
= 100 k
to 7.5V
14.955
14.965
14.925
Min
0.010
0.025
0.025
0.050
V
0.050
0.035
0.075
Max
V
+
= 15V
14.965
14.900
14.900
14.850
V
R
L
= 25 k
to 7.5V
14.800
14.850
14.800
Min
0.025
0.050
0.050
0.100
V
0.200
0.150
0.200
Max
I
O
Output Current
Sourcing, V
O
= 0V
22
16
16
13
mA
V
+
= 5V
8
10
8
Min
Sinking, V
O
= 5V
21
16
16
16
mA
7
8
8
Min
I
O
Output Current
Sourcing, V
O
= 0V
25
15
15
15
mA
V
+
= 15V
9
10
10
Min
Sinking, V
O
= 13V
26
20
20
20
mA
(Note 10)
7
8
8
Min
I
S
Supply Current
V
+
= +5V, V
O
= 1.5V
20
24
24
32
A
35
32
40
Max
V
+
= +15V, V
O
= 7.5V
24
30
30
40
A
40
38
48
Max
AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
= 25C, Boldface limits apply at the temperature extremes. V
+
= 5V, V
-
= 0V, V
CM
= 1.5V, V
O
= 2.5V and R
L
>
1M unless otherwise specified.
Typ
LMC6061AM LMC6061AI LMC6061I
Symbol
Parameter
Conditions
(Note 5)
Limit
Limit
Limit
Units
(Note 6)
(Note 6)
(Note 6)
SR
Slew Rate
(Note 8)
35
20
20
15
V/ms
8
10
7
Min
GBW
Gain-Bandwidth Product
100
kHz
m
Phase Margin
50
Deg
e
n
Input-Referred Voltage Noise
F = 1 kHz
83
i
n
Input-Referred Current Noise
F = 1 kHz
0.0002
T.H.D.
Total Harmonic Distortion
F = 1 kHz, A
V
= -5
R
L
= 100 k
, V
O
= 2 V
PP
0.01
%
5V Supply
LMC6061
www.national.com
3
AC Electrical Characteristics
(Continued)
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device 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. Continous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150C. Output currents in excess of
30 mA over long term may adversely 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, 1.5 k
in series with 100 pF.
Note 5: Typical values represent the most likely parametric norm.
Note 6: All limits are guaranteed by testing or statistical analysis.
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: 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 10: Do not connect output to V
+
, when V
+
is greater than 13V or reliability witll be adversely affected.
Note 11: All numbers apply for packages soldered directly into a PC board.
Note 12: For guaranteed Military Temperature Range parameters see RETSMC6061X.
LMC6061
www.national.com
4
Typical Performance Characteristics
V
S
=
7.5V, T
A
= 25C, Unless otherwise specified
Distribution of LMC6061
Input Offset Voltage
(T
A
= +25C)
Distribution of LMC6061
Input Offset Voltage
(T
A
= -55C)
01142215
01142216
Distribution of LMC6061
Input Offset Voltage
(T
A
= +125C)
Input Bias Current
vs Temperature
01142217
01142218
Supply Current
vs Supply Voltage
Input Voltage
vs Output Voltage
01142219
01142220
LMC6061
www.national.com
5
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