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 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 10 Slew rate (Typ) (V/us) 20 Vos (offset voltage @ 25 C) (Max) (mV) 3.5 Iq per channel (Typ) (mA) 1.8 Vn at 1 kHz (Typ) (nV/rtHz) 6.5 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 2 Input bias current (Max) (pA) 20 CMRR (Typ) (dB) 126 Output current (Typ) (mA) 30 Architecture FET
Number of channels (#) 1 Total supply voltage (Max) (+5V=5, +/-5V=10) 36 Total supply voltage (Min) (+5V=5, +/-5V=10) 4.5 Rail-to-rail In to V-, Out GBW (Typ) (MHz) 10 Slew rate (Typ) (V/us) 20 Vos (offset voltage @ 25 C) (Max) (mV) 3.5 Iq per channel (Typ) (mA) 1.8 Vn at 1 kHz (Typ) (nV/rtHz) 6.5 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 2 Input bias current (Max) (pA) 20 CMRR (Typ) (dB) 126 Output current (Typ) (mA) 30 Architecture FET
SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Low Supply Current: 2.3mA max
  • Low Offset Drift: 10µV/°C max
  • Low Input Bias Current: 20pA max
  • Very Low 1/f Noise: 250nVPP
  • Low Noise: 6.5nV/√Hz
  • Wide Bandwidth: 10MHz
  • Slew Rate: 20V/µs
  • Input Voltage Range Includes V–
  • Rail-to-Rail Output
  • Single-Supply Operation: 4.5V to 36V
  • Dual-Supply Operation: ±2.25V to ±18V
  • No Phase Reversal
  • MSOP-8, TSSOP Packages
  • APPLICATIONS
    • Battery-Powered Instruments
    • Industrial Controls
    • Medical Instrumentation
    • Photodiode Amplifiers
    • Active Filters
    • Data Acquisition Systems
    • Portable Audio
    • Automatic Test Systems

All other trademarks are the property of their respective owners

  • Low Supply Current: 2.3mA max
  • Low Offset Drift: 10µV/°C max
  • Low Input Bias Current: 20pA max
  • Very Low 1/f Noise: 250nVPP
  • Low Noise: 6.5nV/√Hz
  • Wide Bandwidth: 10MHz
  • Slew Rate: 20V/µs
  • Input Voltage Range Includes V–
  • Rail-to-Rail Output
  • Single-Supply Operation: 4.5V to 36V
  • Dual-Supply Operation: ±2.25V to ±18V
  • No Phase Reversal
  • MSOP-8, TSSOP Packages
  • APPLICATIONS
    • Battery-Powered Instruments
    • Industrial Controls
    • Medical Instrumentation
    • Photodiode Amplifiers
    • Active Filters
    • Data Acquisition Systems
    • Portable Audio
    • Automatic Test Systems

All other trademarks are the property of their respective owners

The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature 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 OPA141 achieves 10MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA141 (single) and OPA2141 (dual) versions are available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in the SO-14 and TSSOP-14 packages.

The OPA141, OPA2141, and OPA4141 amplifier family is a series of low-power JFET input amplifiers that feature 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 OPA141 achieves 10MHz unity-gain bandwidth and 20V/µs slew rate while consuming only 1.8mA (typ) of quiescent current. It runs on a single 4.5 to 36V supply or dual ±2.25V to ±18V supplies.

All versions are fully specified from –40°C to +125°C for use in the most challenging environments. The OPA141 (single) and OPA2141 (dual) versions are available in both MSOP-8 and SO-8 packages; the OPA4141 (quad) is available in the SO-14 and TSSOP-14 packages.

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Technical documentation

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Type Title Date
* Data sheet 10MHz, Rail-to-Rail Output, Precision, Low-Noise, JFET Operational Amplifier datasheet (Rev. B) 02 May 2010
Application note MUX-Friendly, Precision Operational Amplifiers (Rev. C) PDF | HTML 08 Feb 2022
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
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 OPA141, OPA2141, OPA4141 EMI Immunity Performance 31 Oct 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.

Simulation model

OPAx141 PSpice Model (Rev. E)

SBOM494E.ZIP (27 KB) - PSpice Model
Simulation model

OPAx141 TINA-TI Reference Design (Rev. E)

SBOM421E.TSC (334 KB) - TINA-TI Reference Design
Simulation model

OPAx141 TINA-TI Spice Model (Rev. E)

SBOM420E.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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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
Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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