NSC LMC6082IMX, LMC6082IM, LMC6082AIN, LMC6082AIMX, LMC6082AIM Datasheet
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LMC6082
Precision CMOS Dual Operational Amplifier
General Description
The LMC6082 is a precision dual low offset voltage operational amplifier, capable of 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 includes ground. These features, plus its low offset voltage, make the LMC6082 ideally
suited for precision circuit applications.
Other applications using the LMC6082 include precision
full-wave rectifiers, integrators, references, and
sample-and-hold circuits.
This device is built with National’s advanced Double-Poly
Silicon-Gate CMOS process.
For designs with more critical power demands, see the
LMC6062 precision dual micropower operational amplifier.
PATENT PENDING
Features
(Typical unless otherwise stated)
n Low offset voltage: 150 µV
n Operates from 4.5V to 15V single supply
n Ultra low input bias current: 10 fA
n Output swing to within 20 mV of supply rail, 100k load
n Input common-mode range includes V
−
n High voltage gain: 130 dB
n Improved latchup immunity
Applications
n Instrumentation amplifier
n Photodiode and infrared detector preamplifier
n Transducer amplifiers
n Medical instrumentation
n D/A converter
n Charge amplifier for piezoelectric transducers
Connection Diagram
Ordering Information
Package Temperature Range NSC
Drawing
Transport
Media
Military Industrial
−55˚C to +125˚C −40˚C to +85˚C
8-Pin LMC6082AMN LMC6082AIN N08E Rail
Molded DIP LMC6082IN
8-Pin LMC6082AIM M08A Rail
Small Outline LMC6082IM Tape and Reel
For MIL-STD-883C qualified products, please contact your local National
Semiconductor Sales Office or Distributor for availability and specification
information.
8-Pin DIP/SO
DS011297-1
Top View
December 1994
LMC6082 Precision CMOS Dual Operational Amplifier
© 1999 National Semiconductor Corporation DS011297 www.national.com
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the NationalSemiconductorSalesOffice/
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 11)
Output Short Circuit to V
−
(Note 2)
Lead Temperature
(Soldering, 10 Sec.) 260˚C
Storage Temp. Range −65˚C to +150˚C
Junction Temperature 150˚C
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
LMC6082AM −55˚C ≤ T
J
≤ +125˚C
LMC6082AI, LMC6082I −40˚C ≤ T
J
≤ +85˚C
Supply Voltage 4.5V ≤ V
+
≤ 15.5V
Thermal Resistance (θ
JA
) (Note 12)
8-Pin Molded DIP 115˚C/W
8-Pin SO 193˚C/W
Power Dissipation (Note 10)
DC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
=
25˚C. 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 LMC6082AM LMC6082AI LMC6082I
Symbol Parameter Conditions (Note 5) Limit Limit Limit Units
(Note 6) (Note 6) (Note 6)
V
OS
Input Offset Voltage 150 350 350 800 µV
1000 800 1300 Max
TCV
OS
Input Offset Voltage 1.0 µV/˚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 Ω
CMRR Common Mode 0V ≤ V
CM
≤ 12.0V 85 75 75 66 dB
Rejection Ratio V
+
=
15V 72 72 63 Min
+PSRR Positive Power Supply 5V ≤ V
+
≤ 15V 85 75 75 66 dB
Rejection Ratio V
O
=
2.5V 72 72 63 Min
−PSRR Negative Power Supply 0V ≤ V
−
≤ −10V 94 84 84 74 dB
Rejection Ratio 81 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 000Max
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
=
2kΩ Sourcing 1400 400 400 300 V/mV
Voltage Gain (Note 7) 300 300 200 Min
Sinking 350 180 180 90 V/mV
70 100 60 Min
R
L
=
600Ω Sourcing 1200 400 400 200 V/mV
(Note 7) 150 150 80 Min
Sinking 150 100 100 70 V/mV
35 50 35 Min
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DC Electrical Characteristics (Continued)
Unless otherwise specified, all limits guaranteed for T
J
=
25˚C. 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 LMC6082AM LMC6082AI LMC6082I
Symbol Parameter Conditions (Note 5) Limit Limit Limit Units
(Note 6) (Note 6) (Note 6)
V
O
Output Swing V
+
=
5V 4.87 4.80 4.80 4.75 V
R
L
=
2kΩto 2.5V 4.70 4.73 4.67 Min
0.10 0.13 0.13 0.20 V
0.19 0.17 0.24 Max
V
+
=
5V 4.61 4.50 4.50 4.40 V
R
L
=
600Ω to 2.5V 4.24 4.31 4.21 Min
0.30 0.40 0.40 0.50 V
0.63 0.50 0.63 Max
V
+
=
15V 14.63 14.50 14.50 14.37 V
R
L
=
2kΩto 7.5V 14.30 14.34 14.25 Min
0.26 0.35 0.35 0.44 V
0.48 0.45 0.56 Max
V
+
=
15V 13.90 13.35 13.35 12.92 V
R
L
=
600Ω to 7.5V 12.80 12.86 12.44 Min
0.79 1.16 1.16 1.33 V
1.42 1.32 1.58 Max
I
O
Output Current Sourcing, V
O
=
0V 22 16 16 13 mA
V
+
=
5V 8108Min
Sinking, V
O
=
5V 21 16 16 13 mA
11 13 10 Min
I
O
Output Current Sourcing, V
O
=
0V 30 28 28 23 mA
V
+
=
15V 18 22 18 Min
Sinking, V
O
=
13V 34 28 28 23 mA
(Note 11) 19 22 18 Min
I
S
Supply Current Both Amplifiers 0.9 1.5 1.5 1.5 mA
V
+
=
+5V, V
O
=
1.5V 1.8 1.8 1.8 Max
Both Amplifiers 1.1 1.7 1.7 1.7 mA
V
+
=
+15V, V
O
=
7.5V 222Max
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AC Electrical Characteristics
Unless otherwise specified, all limits guaranteed for T
J
=
25˚C, 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 LMC6082AM LMC6082AI LMC6082I
Symbol Parameter Conditions (Note 5) Limit Limit Limit Units
(Note 6) (Note 6) (Note 6)
SR Slew Rate (Note 8) 1.5 0.8 0.8 0.8 V/µs
0.5 0.6 0.6 Min
GBW Gain-Bandwidth Product 1.3 MHz
φ
m
Phase Margin 50 Deg
Amp-to-Amp Isolation (Note 9) 140 dB
e
n
Input-Referred
Voltage Noise
F=1 kHz 22
i
n
Input-Referred
Current Noise
F=1 kHz 0.0002
T.H.D. Total Harmonic
Distortion
F=10 kHz, A
V
=
−10
R
L
=
2kΩ,V
O
=
8V
PP
0.01
%
±
5V Supply
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. Continuous short circuit operation at elevated ambient temperature can result in exceeding the
maximum allowed junction temperature of 150˚C. 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)
, θJA, and TA. The maximum allowable power dissipation at any ambient temperature is P
D
=
(T
J(Max)
−TA)/θJA.
Note 4: Human body model, 1.5 kΩ 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 ≤ VO≤ 11.5V. For Sinking tests, 2.5V ≤ VO≤ 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 kΩ connected to 7.5V. Each amp excited in turm with 1 kHz to produce V
O
=
12 V
PP
.
Note 10: Foroperating at elevated temperatures the device must be derated based on the thermal resistance θ
JA
with P
D
=
(T
J−TA
)/θJA.All numbers apply for pack-
ages soldered directly into a PC board.
Note 11: Do not connect output to V
+
, when V+is greater than 13V or reliability will be adversely affected.
Note 12: All numbers apply for packages soldered directly into a PC board.
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