Product details

Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 9 Rail-to-rail No GBW (Typ) (MHz) 4 Slew rate (Typ) (V/us) 10 Vos (offset voltage @ 25 C) (Max) (mV) 1 Iq per channel (Typ) (mA) 1.5 Vn at 1 kHz (Typ) (nV/rtHz) 15 Rating Catalog Operating temperature range (C) -40 to 85 Offset drift (Typ) (uV/C) 2 Features Input bias current (Max) (pA) 50 CMRR (Typ) (dB) 80 Output current (Typ) (mA) 25 Architecture FET
Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 9 Rail-to-rail No GBW (Typ) (MHz) 4 Slew rate (Typ) (V/us) 10 Vos (offset voltage @ 25 C) (Max) (mV) 1 Iq per channel (Typ) (mA) 1.5 Vn at 1 kHz (Typ) (nV/rtHz) 15 Rating Catalog Operating temperature range (C) -40 to 85 Offset drift (Typ) (uV/C) 2 Features Input bias current (Max) (pA) 50 CMRR (Typ) (dB) 80 Output current (Typ) (mA) 25 Architecture FET
PDIP (N) 14 181 mm² 19.3 x 9.4 SOIC (D) 14 52 mm² 8.65 x 6 SOIC (DW) 16 77 mm² 7.52 x 10.28
  • FET INPUT: IB = 50pA max
  • LOW OFFSET VOLTAGE: 750uV max
  • WIDE SUPPLY RANGE: ±4.5V to ±18V
  • SLEW RATE: 10V/us
  • WIDE BANDWIDTH: 4MHz
  • EXCELLENT CAPACITIVE LOAD DRIVE
  • SINGLE, DUAL, QUAD VERSIONS

  • FET INPUT: IB = 50pA max
  • LOW OFFSET VOLTAGE: 750uV max
  • WIDE SUPPLY RANGE: ±4.5V to ±18V
  • SLEW RATE: 10V/us
  • WIDE BANDWIDTH: 4MHz
  • EXCELLENT CAPACITIVE LOAD DRIVE
  • SINGLE, DUAL, QUAD VERSIONS

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.

Single, dual, and quad versions are available in DIP and SO packages. Performance grades include commercial and industrial temperature ranges.

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.

Single, dual, and quad versions are available in DIP and SO packages. Performance grades include commercial and industrial temperature ranges.

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Technical documentation

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Type Title Date
* Data sheet General Purpose FET-Input Operational Amplifiers datasheet (Rev. A) 21 Oct 2002
Technical article What is an op amp? 21 Jan 2020
Technical article How to lay out a PCB for high-performance, low-side current-sensing designs 06 Feb 2018
Technical article Low-side current sensing for high-performance cost-sensitive applications 22 Jan 2018
Technical article Voltage and current sensing in HEV/EV applications 22 Nov 2017
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Simulation model

OPA4131 PSpice Model (Rev. A)

SBOM076A.ZIP (39 KB) - PSpice Model
Simulation model

OPA131 TINA-TI Reference Design (Rev. A)

SBOMAT2A.TSC (304 KB) - TINA-TI Reference Design
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
Calculation tool

ANALOG-ENGINEER-CALC — Analog engineer's calculator

The Analog Engineer’s Calculator is designed to speed up many of the repetitive calculations that analog circuit design engineers use on a regular basis. This PC-based tool provides a graphical interface with a list of various common calculations ranging from setting op-amp gain with feedback (...)
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Design tool

CIRCUIT060013 — Inverting amplifier with T-network feedback circuit

This design inverts the input signal, VIN, and applies a signal gain of 1000 V/V or 60 dB. The inverting amplifier with T-feedback network can be used to obtain a high gain without a small value for R4 or very large values for the feedback resistors.
Design tool

CIRCUIT060015 — Adjustable reference voltage circuit

This circuit combines an inverting and non-inverting amplifier to make a reference voltage adjustable from the negative of the input voltage up to the input voltage. Gain can be added to increase the maximum negative reference level.
Design tool

CIRCUIT060074 — High-side current sensing with comparator circuit

This high-side, current sensing solution uses one comparator with a rail-to-rail input common mode range to create an over-current alert (OC-Alert) signal at the comparator output (COMP OUT) if the load current rises above 1 A. The OC-Alert signal in this implementation is active low. So when the (...)
Package Pins Download
PDIP (N) 14 View options
SOIC (D) 14 View options
SOIC (DW) 16 View options

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