®
OPA
131
OPA
2131
OPA
4131
OPA
131
OPA
2131
OP
A41
31
OPA
413
1
OPA131
OPA2131
OPA4131
General Purpose
FET-INPUT OPERATIONAL AMPLIFIERS
FEATURES
q
FET INPUT: I
B
= 50pA max
q
LOW OFFSET VOLTAGE: 750
µ
V max
q
WIDE SUPPLY RANGE:
±
4.5V to
±
18V
q
SLEW RATE: 10V/
µ
s
q
WIDE BANDWIDTH: 4MHz
q
EXCELLENT CAPACITIVE LOAD DRIVE
q
SINGLE, DUAL, QUAD VERSIONS
8-Pin DIP, SO-8
Offset Trim
–In
+In
V–
1
2
3
4
OPA131
8
7
6
5
NC
V+
Output
Offset Trim
DESCRIPTION
The OPA131 series of FET-input op amps provides
high performance at low cost. Single, dual and quad
versions in industry-standard pinouts allow cost-effec-
tive design options.
The OPA131 series offers excellent general purpose
performance, including low offset voltage, drift, and
good dynamic characteristics.
Single, dual and quad versions are available in DIP
and SOIC packages. Performance grades include com-
mercial and industrial temperature ranges.
OPA4131
OPA2131
Out A
–In A
+In A
V–
1
2
3
4
8-Pin DIP, SO-8
A
B
8
7
6
5
V+
Out B
–In B
+In B
OPA4131
Out A
Out A
–In A
+In A
V+
+In B
–In B
Out B
1
2
A
3
4
5
B
6
7
14-Pin DIP
SO-14
C
9
8
–In C
D
12
11
10
+In D
14
13
Out D
1
2
A
D
3
4
5
B
C
6
7
8
SOL-16
16
15
14
13
12
11
10
9
Out D
–In D
+In D
V–
+In C
–In C
Out C
NC
–In A
–In D
+In A
V+
V–
+In B
+In C
–In B
Out B
Out C
NC
International Airport Industrial Park • Mailing Address: PO Box 11400
Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP •
• Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706
Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1994 Burr-Brown Corporation
PDS-1256C
Printed in U.S.A. January, 1996
SBOS040
SPECIFICATIONS
At T
A
= +25°C, V
S
=
±15V,
and R
L
= 2kΩ, unless otherwise noted.
OPA131PA, UA
OPA2131PA, UA
OPA4131PA, UA, NA
PARAMETER
OFFSET VOLTAGE
Input Offset Voltage
OPA131P, U models only
vs Temperature
(1)
vs Power Supply
OPA131P, U models only
INPUT BIAS CURRENT
(2)
Input Bias Current
vs Temperature
Input Offset Current
NOISE
Input Voltage Noise
Noise Density, f = 10Hz
f = 100Hz
f = 1kHz
f = 10kHz
Current Noise Density, f = 1kHz
INPUT VOLTAGE RANGE
Common-Mode Voltage Range
Common-Mode Rejection
OPA131P, U models only
INPUT IMPEDANCE
Differential
Common-Mode
OPEN-LOOP GAIN
Open-Loop Voltage Gain
OPA131P, U models only
FREQUENCY RESPONSE
Gain-Bandwidth Product
Slew Rate
Settling Time 0.1%
0.01%
Total Harmonic Distortion + Noise
OUTPUT
Voltage Output, Positive
Negative
Short-Circuit Current
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
TEMPERATURE RANGE
Operating Range
Storage
Thermal Resistance,
θ
JA
8-Pin DIP
SO-8 Surface-Mount
14-Pin DIP
SO-14, SOL-16 Surface-Mount
* Specifications same as OPA131PA, OPA131UA.
NOTES: (1) Guaranteed by wafer test. (2) High-speed test at T
J
= 25°C.
(V–)+3
70
80
CONDITION
MIN
TYP
±0.2
±0.2
±2
50
50
MAX
±1
0.75
±10
200
100
MIN
OPA131PJ, UJ
OPA2131PJ, UJ
OPA4131PJ, NJ
TYP
*
*
*
MAX
±1.5
*
*
UNITS
mV
mV
µV/°C
µV/V
µV/V
pA
pA
Operating Temperature Range
V
S
=
±4.5V
to
±18V
V
CM
= 0V
V
CM
= 0V
+5
±50
See Typical Curve
±1
±50
*
*
*
*
*
21
16
15
15
3
(V+)–1
80
86
10
10
|| 1
10
12
|| 3
94
100
110
110
4
10
1.5
2
0.0008
(V+)–3
(V–)+3
(V+)–2.5
(V–)+2.5
±25
±15
±1.5
*
*
*
*
*
*
*
*
*
*
*
*
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
fA/√Hz
V
dB
dB
Ω
|| pF
Ω
|| pF
dB
dB
MHz
V/µs
µs
µs
%
V
V
mA
V
V
mA
°C
°C
°C/W
°C/W
°C/W
°C/W
V
CM
= –12V to +14V
V
CM
= 0V
V
O
= –12V to +12V
*
*
*
G = –1, 10V Step, C
L
= 100pF
G = –1, 10V Step, C
L
= 100pF
1kHz, G = 1, V
O
= 3.5Vrms
*
*
*
*
*
*
*
*
*
±18
±1.75
+85
+125
*
*
0
*
*
*
*
*
*
±2
+70
*
±4.5
I
O
= 0
–40
–40
100
150
80
110
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
OPA131/2131/4131
2
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to V– .................................................................... 36V
Input Voltage .................................................... (V–) –0.7V to (V+) +0.7V
Output Short-Circuit
(1)
.............................................................. Continuous
Operating Temperature ................................................. –40°C to +125°C
Storage Temperature ..................................................... –40°C to +125°C
Junction Temperature ...................................................................... 150°C
Lead Temperature (soldering, 10s) ................................................. 300°C
NOTE: (1) Short-circuit to ground, one amplifier per package.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
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.
PACKAGE INFORMATION
MODEL
Single
OPA131PJ
OPA131PA
OPA131P
OPA131UJ
OPA131UA
OPA131U
Dual
OPA2131PJ
OPA2131PA
OPA2131UJ
OPA2131UA
Quad
OPA4131PJ
OPA4131PA
OPA4131UA
OPA4131NJ
OPA4131NA
PACKAGE
8-Pin Plastic DIP
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
SO-8 Surface-Mount
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
14-Pin Plastic DIP
14-Pin Plastic DIP
SOL-16 Surface-Mount
SO-14 Surface-Mount
SO-14 Surface-Mount
PACKAGE DRAWING
NUMBER
(1)
006
006
006
182
182
182
006
006
182
182
010
010
211
235
235
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
ORDERING INFORMATION
MODEL
Single
OPA131PJ
OPA131PA
OPA131P
OPA131UJ
OPA131UA
OPA131U
Dual
OPA2131PJ
OPA2131PA
OPA2131UJ
OPA2131UA
Quad
OPA4131PJ
OPA4131PA
OPA4131UA
OPA4131NJ
OPA4131NA
PACKAGE
8-Pin Plastic DIP
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
SO-8 Surface-Mount
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
14-Pin Plastic DIP
14-Pin Plastic DIP
SOL-16 Surface-Mount
SO-14 Surface-Mount
SO-14 Surface-Mount
TEMPERATURE RANGE
0 to +70°C
–40°C to +85°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
®
3
OPA131/2131/4131
TYPICAL PERFORMANCE CURVES
At T
A
= +25°C, V
S
=
±15V,
and R
L
= 2kΩ, unless otherwise noted.
OPEN-LOOP GAIN/PHASE vs FREQUENCY
120
100
–45
Voltage Gain (dB)
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
0
Power Supply Rejection (dB)
120
100
80
60
CMR
40
20
0
–PSR
+PSR
120
100
80
60
40
20
0
10
100
1k
10k
100k
1M
Frequency (Hz)
80
60
40
–90
–135
20
0
–20
1
10
100
1k
10k
100k
1M
10M
Frequency (Hz)
G
–180
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
1k
1k
Phase Shift (°)
∅
CHANNEL SEPARATION vs FREQUENCY
160
R
L
=
∞
140
100
Voltage Noise
100
Channel Separation (dB)
Voltage Noise (nV/√Hz)
Current Noise (fA/√Hz)
120
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
10
100
1k
Frequency (Hz)
R
L
= 2kΩ
10
10
100
Current Noise
1
1
10
100
1k
Frequency (Hz)
10k
100k
1
1M
80
10k
100k
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
1k
Input bias current is a
function of the voltage
between the V– supply
and the inputs.
100
Input Bias and Input Offset Current (pA)
10k
1k
100
10
1
0.1
I
B
I
OS
Input Bias Current (pA)
V
CM
= 0V
V
S
= ±15V
10
V
S
= ±5V
0.01
–75
–50
–25
0
25
50
75
100
125
Ambient Temperature (°C)
1
–15
–10
–5
0
5
10
15
Common-Mode Voltage (V)
®
OPA131/2131/4131
4
Common-Mode Rejection (dB)
TYPICAL PERFORMANCE CURVES
(CONT)
At T
A
= +25°C, V
S
=
±15V,
and R
L
= 2kΩ, unless otherwise noted.
OPEN-LOOP GAIN vs TEMPERATURE
120
1.8
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT
vs TEMPERATURE
40
I
SC
–
Quiescent Current (mA)
Voltage Gain (dB)
115
1.6
I
SC
1.4
I
Q
V
S
= ±5V
1.2
10
20
+
30
110
105
100
–75
–50
–25
0
25
50
75
100
125
Ambient Temperature (°C)
1
–75
–50
–25
0
25
50
75
100
125
Temperature (°C)
0
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
20
Typical production distribution
of packaged units. Single,
dual and quad units included
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
35
30
25
Units (%)
Typical production distribution
of packaged units. Single,
dual and quad units included
15
Units (%)
20
15
10
5
10
5
0
–1400
–1200
–1000
–800
–600
–400
–200
0
200
400
600
800
1000
1200
1400
0
–7 –6 –5 –4 –3 –2 –1
0
1
2
3
4
5
6
7
Offset Voltage Drift (µV/°C)
Offset Voltage (µV)
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
1
V
O
= 3.5Vrms
0.1
THD + Noise (%)
G = 100V/V
0.01
G = 10V/V
0.001
G = 1V/V
0.0001
10
100
1k
Frequency (Hz)
10k
100k
Bandwidth-
Limited
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
30
V
S
= ±15V
Output Voltage (Vp-p)
20
Maximum output voltage
without slew-rate induced
distortion
10
V
S
= ±5V
0
10k
100k
Frequency (Hz)
1M
10M
Short-Circuit Current (mA)
®
I
Q
V
S
= ±15V
5
OPA131/2131/4131
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