Burr-Brown OPA131PA General purpose fet-input operational amplifier Datasheet

®
OPA
OPA
2131
131
OPA
131
OPA
2131
OPA131
OPA2131
OPA4131
OPA
4131
OP
A41
31
OPA
4131
General Purpose
FET-INPUT OPERATIONAL AMPLIFIERS
FEATURES
OPA131
● FET INPUT: IB = 50pA max
● LOW OFFSET VOLTAGE: 750µV max
● WIDE SUPPLY RANGE: ±4.5V to ±18V
● SLEW RATE: 10V/µs
Offset Trim
1
8
NC
–In
2
7
V+
+In
3
6
Output
V–
4
5
Offset Trim
8
V+
7
Out B
6
–In B
5
+In B
● WIDE BANDWIDTH: 4MHz
● EXCELLENT CAPACITIVE LOAD DRIVE
8-Pin DIP, SO-8
● SINGLE, DUAL, QUAD VERSIONS
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-effective design options.
The OPA131 series offers excellent general purpose
performance, including low offset voltage, drift, and
good dynamic characteristics.
OPA2131
Out A
–In A
1
A
2
+In A
3
V–
4
B
8-Pin DIP, SO-8
Single, dual and quad versions are available in DIP
and SOIC packages. Performance grades include commercial and industrial temperature ranges.
OPA4131
OPA4131
Out A
1
14
Out D
–In A
2
13
–In D
+In A
3
12
+In D
A
4
11
V–
+In B
5
10
+In C
–In B
6
9
–In C
Out B
7
8
Out C
B
1
–In A
2
A
D
V+
Out A
14-Pin DIP
SO-14
Out D
15
–In D
D
+In A
3
14
+In D
V+
4
13
V–
+In B
5
12
+In C
B
C
16
C
–In B
6
11
–In C
Out B
7
10
Out C
NC
8
9
NC
SOL-16
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
SPECIFICATIONS
At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.
OPA131PA, UA
OPA2131PA, UA
OPA4131PA, UA, NA
PARAMETER
CONDITION
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
MIN
Operating Temperature Range
VS = ±4.5V to ±18V
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
VCM = 0V
±0.2
±0.2
±2
50
50
±1
0.75
±10
200
100
MIN
21
16
15
15
3
VCM = –12V to +14V
(V–)+3
70
80
VO = –12V to +12V
94
100
(V+)–3
(V–)+3
±4.5
IO = 0
TEMPERATURE RANGE
Operating Range
Storage
Thermal Resistance, θJA
8-Pin DIP
SO-8 Surface-Mount
14-Pin DIP
SO-14, SOL-16 Surface-Mount
(V+)–1
80
86
*
*
110
110
*
4
10
1.5
2
0.0008
G = –1, 10V Step, CL = 100pF
G = –1, 10V Step, CL = 100pF
1kHz, G = 1, VO = 3.5Vrms
(V+)–2.5
(V–)+2.5
±25
±15
±1.5
–40
–40
100
150
80
110
TYP
MAX
UNITS
*
±1.5
*
*
*
*
mV
mV
µV/°C
µV/V
µV/V
*
*
*
*
pA
*
pA
*
*
*
*
*
1010 || 1
1012 || 3
VCM = 0V
OUTPUT
Voltage Output, Positive
Negative
Short-Circuit Current
POWER SUPPLY
Specified Operating Voltage
Operating Voltage Range
Quiescent Current (per amplifier)
MAX
+5
±50
See Typical Curve
±1
±50
VCM = 0V
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
TYP
OPA131PJ, UJ
OPA2131PJ, UJ
OPA4131PJ, NJ
*
*
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
*
±18
±1.75
*
+85
+125
0
*
*
*
*
*
*
*
±2
V
V
mA
+70
*
°C
°C
°C/W
°C/W
°C/W
°C/W
* Specifications same as OPA131PA, OPA131UA.
NOTES: (1) Guaranteed by wafer test. (2) High-speed test at TJ = 25°C.
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
ELECTROSTATIC
DISCHARGE SENSITIVITY
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
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.
NOTE: (1) Short-circuit to ground, one amplifier per package.
ESD damage can range from subtle performance degradation 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
PACKAGE
PACKAGE DRAWING
NUMBER(1)
Single
OPA131PJ
OPA131PA
OPA131P
OPA131UJ
OPA131UA
OPA131U
8-Pin Plastic DIP
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
SO-8 Surface-Mount
006
006
006
182
182
182
Dual
OPA2131PJ
OPA2131PA
OPA2131UJ
OPA2131UA
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
006
006
182
182
Quad
OPA4131PJ
OPA4131PA
OPA4131UA
OPA4131NJ
OPA4131NA
14-Pin Plastic DIP
14-Pin Plastic DIP
SOL-16 Surface-Mount
SO-14 Surface-Mount
SO-14 Surface-Mount
010
010
211
235
235
MODEL
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
PACKAGE
TEMPERATURE RANGE
Single
OPA131PJ
OPA131PA
OPA131P
OPA131UJ
OPA131UA
OPA131U
8-Pin Plastic DIP
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
SO-8 Surface-Mount
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
Dual
OPA2131PJ
OPA2131PA
OPA2131UJ
OPA2131UA
8-Pin Plastic DIP
8-Pin Plastic DIP
SO-8 Surface-Mount
SO-8 Surface-Mount
0 to +70°C
–40°C to +85°C
0 to +70°C
–40°C to +85°C
Quad
OPA4131PJ
OPA4131PA
OPA4131UA
OPA4131NJ
OPA4131NA
14-Pin Plastic DIP
14-Pin Plastic DIP
SOL-16 Surface-Mount
SO-14 Surface-Mount
SO-14 Surface-Mount
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 TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.
POWER SUPPLY AND COMMON-MODE REJECTION
vs FREQUENCY
OPEN-LOOP GAIN/PHASE vs FREQUENCY
Power Supply Rejection (dB)
100
80
∅
–90
60
40
–135
20
Phase Shift (°)
Voltage Gain (dB)
–45
G
–180
0
120
100
80
80
–PSR
60
1
40
40
20
20
10
100
1k
10k
100k
1M
0
10
10M
100
1k
Frequency (Hz)
10
10
Channel Separation (dB)
Voltage Noise
RL = ∞
140
120
100
Current Noise
1
1
100
1k
1M
160
Current Noise (fA/√Hz)
100
100
10
100k
CHANNEL SEPARATION vs FREQUENCY
1k
1k
1
10k
Frequency (Hz)
INPUT VOLTAGE AND CURRENT NOISE
SPECTRAL DENSITY vs FREQUENCY
Voltage Noise (nV/√Hz)
60
CMR
0
–20
10k
100k
Dual and quad devices.
G = 1, all channels.
Quad measured channel
A to D or B to C—other
combinations yield improved
rejection.
RL = 2kΩ
80
10
1M
100
1k
10k
100k
Frequency (Hz)
Frequency (Hz)
INPUT BIAS AND INPUT OFFSET CURRENT
vs TEMPERATURE
INPUT BIAS CURRENT
vs INPUT COMMON-MODE VOLTAGE
1k
10k
Input bias current is a
function of the voltage
between the V– supply
and the inputs.
1k
VCM = 0V
100
IB
Input Bias Current (pA)
Input Bias and Input Offset Current (pA)
100
+PSR
IOS
10
1
100
VS = ±15V
10
0.1
VS = ±5V
1
–15
0.01
–75
–50
–25
0
25
50
75
100
125
®
OPA131/2131/4131
–10
–5
0
5
Common-Mode Voltage (V)
Ambient Temperature (°C)
4
10
15
Common-Mode Rejection (dB)
120
0
120
TYPICAL PERFORMANCE CURVES (CONT)
At TA = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.
QUIESCENT CURRENT AND SHORT-CIRCUIT CURRENT
vs TEMPERATURE
1.8
120
40
IQ
VS = ±15V
–
Quiescent Current (mA)
ISC
Voltage Gain (dB)
115
110
105
30
+
ISC
1.4
20
IQ
VS = ±5V
1.2
10
1
100
–75
–50
–25
0
25
50
75
100
0
–75
125
–50
–25
0
25
50
75
Ambient Temperature (°C)
Temperature (°C)
OFFSET VOLTAGE
PRODUCTION DISTRIBUTION
OFFSET VOLTAGE DRIFT
PRODUCTION DISTRIBUTION
100
125
35
20
Typical production distribution
of packaged units. Single,
Typical production distribution
of packaged units. Single,
30
dual and quad units included
15
dual and quad units included
25
Units (%)
Units (%)
1.6
Short-Circuit Current (mA)
OPEN-LOOP GAIN vs TEMPERATURE
10
20
15
10
5
5
0
1400
1200
800
1000
600
400
0
200
–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)
MAXIMUM OUTPUT VOLTAGE
vs FREQUENCY
TOTAL HARMONIC DISTORTION + NOISE
vs FREQUENCY
30
1
BandwidthLimited
VS = ±15V
Output Voltage (Vp-p)
VO = 3.5Vrms
THD + Noise (%)
0.1
G = 100V/V
0.01
G = 10V/V
0.001
Maximum output voltage
without slew-rate induced
distortion
20
10
VS = ±5V
G = 1V/V
0
0.0001
10
100
1k
10k
10k
100k
100k
1M
10M
Frequency (Hz)
Frequency (Hz)
®
5
OPA131/2131/4131
TYPICAL PERFORMANCE CURVES (CONT)
At TCASE = +25°C, VS = ±15V, and RL = 2kΩ, unless otherwise noted.
LARGE-SIGNAL STEP RESPONSE
G = 1, CL = 300pF
5V/div
50mV/div
SMALL-SIGNAL STEP RESPONSE
G =1, CL = 300pF
1µs/div
200ns/div
SMALL-SIGNAL OVERSHOOT
vs LOAD CAPACITANCE
SETTLING TIME vs CLOSED-LOOP GAIN
50
100
Overshoot (%)
40
10
0.01%
G = +2
G = –1
30
G = ±10
20
G=1
0
100pF
1
–1
RL = 2kΩ
Higher RL value
generally reduces
overshoot.
10
0.1%
–10
–100
–1000
1nF
Load Capacitance
Closed-Loop Gain (V/V)
OUTPUT VOLTAGE SWING vs OUTPUT CURRENT
15
VIN = 15V
14
Output Voltage Swing (V)
Settling Time (µs)
VO = 10V Step
RL = 2kΩ
CL = 100pF
13
25°C
–55°C
12
11
125°C
10
–10
25°C
125°C
–11
–12
–55°C
–13
–14
VIN = –15V
–15
0
5
10
15
20
Output Current (mA)
®
OPA131/2131/4131
6
25
30
10nF
APPLICATIONS INFORMATION
V+
OPA131 series op amps are unity-gain stable and suitable
for a wide range of general-purpose applications. Power
supply pins should be bypassed with 10nF ceramic capacitors or larger.
OPA131
(Single op amp only)
7
2
6
3
OPA131 series op amps are free from unexpected output
phase-reversal common with FET op amps. Many FETinput op amps exhibit phase-reversal of the output when the
input common-mode voltage range is exceeded. This can
occur in voltage-follower circuits, causing serious problems
in control loop applications. All circuitry is completely
independent in dual and quad versions, assuring normal
behavior when one amplifier in a package is overdriven or
short-circuited.
OPA131
5
1
4
100kΩ
Trim Range: ±20mV typ
V–
FIGURE 1. OPA131 Offset Voltage Trim Circuit.
INPUT BIAS CURRENT
The input bias current is approximately 5pA at room temperature and increases with temperature as shown in the
typical performance curve “Input Bias Current vs Temperature.”
OFFSET VOLTAGE TRIM
The OPA131 (single op amp version) provides offset
voltage trim connections on pins 1 and 5. Offset voltage
can be adjusted by connecting a potentiometer as shown in
Figure 1. This adjustment should be used only to null the
offset of the op amp, not system offset or offset produced
by the signal source.
Input bias current also varies with common-mode voltage
and power supply voltage. This variation is dependent on the
voltage between the negative power supply and the common-mode input voltage. The effect is shown in the typical
curve “Input Bias Current vs Common-Mode Voltage.”
®
7
OPA131/2131/4131
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