Product details

Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.12 GBW (Typ) (MHz) 11 Slew rate (Typ) (V/us) 20 Rail-to-rail In to V-, Out Offset drift (Typ) (uV/C) 0.35 Iq per channel (Typ) (mA) 1.8 Vn at 1 kHz (Typ) (nV/rtHz) 5.1 CMRR (Typ) (dB) 140 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 10 Output current (Typ) (mA) 30 Architecture FET THD + N @ 1 kHz (Typ) (%) 0.00005
Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Vos (offset voltage @ 25 C) (Max) (mV) 0.12 GBW (Typ) (MHz) 11 Slew rate (Typ) (V/us) 20 Rail-to-rail In to V-, Out Offset drift (Typ) (uV/C) 0.35 Iq per channel (Typ) (mA) 1.8 Vn at 1 kHz (Typ) (nV/rtHz) 5.1 CMRR (Typ) (dB) 140 Rating Catalog Operating temperature range (C) -40 to 125 Input bias current (Max) (pA) 10 Output current (Typ) (mA) 30 Architecture FET THD + N @ 1 kHz (Typ) (%) 0.00005
SOIC (D) 8 19 mm² 4.9 x 3.9 SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Very-low offset drift: 1 µV/°C maximum
  • Very-low offset: 120 µV
  • Low input bias current: 10 pA maximum
  • Very-low 1/f noise: 250 nVPP, 0.1 Hz to 10 Hz
  • Low noise: 5.1 nV/√Hz
  • Slew rate: 20 V/µs
  • Low supply current: 2 mA maximum
  • Input voltage range includes V– supply
  • Single-supply operation: 4.5 V to 36 V
  • Dual-supply operation: ±2.25 V to ±18 V
  • No phase reversal
  • Packages:
    • Industry-standard SOIC, SON (Preview), SOT-23, TSSOP, and VSSOP
  • Very-low offset drift: 1 µV/°C maximum
  • Very-low offset: 120 µV
  • Low input bias current: 10 pA maximum
  • Very-low 1/f noise: 250 nVPP, 0.1 Hz to 10 Hz
  • Low noise: 5.1 nV/√Hz
  • Slew rate: 20 V/µs
  • Low supply current: 2 mA maximum
  • Input voltage range includes V– supply
  • Single-supply operation: 4.5 V to 36 V
  • Dual-supply operation: ±2.25 V to ±18 V
  • No phase reversal
  • Packages:
    • Industry-standard SOIC, SON (Preview), SOT-23, TSSOP, and VSSOP

The OPA140, OPA2140, and OPA4140 (OPAx140) operational amplifier (op amp) family is a series of low-power JFET input amplifiers that features good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA140 achieves 11-MHz unity-gain bandwidth and 20-V/µs slew rate while consuming only 1.8 mA (typical) of quiescent current. This device runs on a single 4.5-V to 36-V supply or dual ±2.25-V to ±18-V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA140 (single) is available in the 5‑pin SOT-23 8‑pin VSSOP and 8‑pin SOIC packages. The OPA2140 (dual) is available in 8‑pin SON, 8‑pin VSSOP, and 8‑pin SOIC packages. The OPA4140 (quad) is available in the 14‑pin SOIC and 14‑pin TSSOP packages.

The OPA140, OPA2140, and OPA4140 (OPAx140) operational amplifier (op amp) family is a series of low-power JFET input amplifiers that features good drift and low input bias current. The rail-to-rail output swing and input range that includes V– allow designers to take advantage of the low-noise characteristics of JFET amplifiers while also interfacing to modern, single-supply, precision analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).

The OPA140 achieves 11-MHz unity-gain bandwidth and 20-V/µs slew rate while consuming only 1.8 mA (typical) of quiescent current. This device runs on a single 4.5-V to 36-V supply or dual ±2.25-V to ±18-V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA140 (single) is available in the 5‑pin SOT-23 8‑pin VSSOP and 8‑pin SOIC packages. The OPA2140 (dual) is available in 8‑pin SON, 8‑pin VSSOP, and 8‑pin SOIC packages. The OPA4140 (quad) is available in the 14‑pin SOIC and 14‑pin TSSOP packages.

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Technical documentation

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Type Title Date
* Data sheet OPAx140 High-Precision, Low-Noise, Rail-to-Rail Output, 11-MHz, JFET Op Amp datasheet (Rev. E) PDF | HTML 07 Jul 2021
Application note MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 08 Feb 2022
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) PDF | HTML 13 Apr 2021
Application note Simplify Transimpedance Applications with High-bandwidth, Precision JFET Op Amps 21 May 2019
Circuit design Inverting dual-supply to single-supply amplifier circuit 09 Jan 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Analog Design Journal Automating amplifier circuit design 26 Jan 2016
Analog Design Journal Analog Applications Journal 4Q 2014 24 Oct 2014
Analog Design Journal Distortion and source impedance in JFET-input op amps 24 Oct 2014
Application note OPA140, OPA2140, OPA4140 EMI Immunity Performance 31 Dec 2013
More literature A High-Voltage Bidirectional Current Source 19 Dec 2013
Technical article Time for a trim? 13 Aug 2012
Technical article Differential Input Clamps-- can they affect your op amp circuits? 21 Mar 2012
Application note Compensate Transimpedance Amplifiers Intuitively (Rev. A) 30 Mar 2005

Design & development

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

Evaluation board

DIP-ADAPTER-EVM — DIP adapter evaluation module

Speed up your op amp prototyping and testing with the DIP-Adapter-EVM, which provides a fast, easy and inexpensive way to interface with small, surface-mount ICs. You can connect any supported op amp using the included Samtec terminal strips or wire them directly to existing circuits.

The (...)

User guide: PDF
Not available on TI.com
Simulation model

OPAx140 PSpice Model (Rev. D)

SBOM493D.ZIP (30 KB) - PSpice Model
Simulation model

OPAx140 TINA-TI Reference Design (Rev. E)

SBOM431E.TSC (348 KB) - TINA-TI Reference Design
Simulation model

OPAx140 TINA-TI Spice Model (Rev. E)

SBOM430E.ZIP (11 KB) - TINA-TI Spice Model
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 operational-amplifier (...)
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Calculation tool

OPAMP-NOISECALC — Noise Calculator, Generator and Examples

This folder contains three tools to help in understandning and managing noise in cicuits. The included tools are:
  • A noise generator tool - This is a Lab View 4-Run Time executable that generates Gaussian white noise, uniform white noise, 1/f noise, short noise, and 60Hz line noise. Temporal data, (...)
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 (...)
User guide: PDF
Reference designs

TIPD151 — 16-bit 400KSPS 4-Ch. Multiplexed Data Acquisition Ref Design for High Voltage Inputs, Low Distortion

This TI Verified Design implements a 16-bit, differential 4-channel multiplexed data acquisition system at 400KSPS throughput for high voltage differential input of ±20 V (40 Vpk-pk) industrial applications. The circuit is realized with a 16-bit successive-approximation-resistor (SAR) (...)
User guide: PDF
Schematic: PDF
Reference designs

TIPD138 — SPI programmable 16-bit, 36V, 1A Power Supply with Integrated Current Shunt

This Verified Design provides the theory, component selection, simulation, PCB design, and measurement details for a SPI controlled 36V power supply capable of sourcing 1A.  It also includes an intergrated high-side current shunt accurate to 1% across multiple decades of current load.  (...)
User guide: PDF
Schematic: PDF
Package Pins Download
SOIC (D) 8 View options
SOT-23 (DBV) 5 View options
VSSOP (DGK) 8 View options

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