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OPA4141
  • OPA4141
  • OPA4141
  • OPA4141
  • OPA4141

OPA4141

ACTIVE

Quad, 10-MHz, single supply, low-noise, JFET precision amplifier

Texas Instruments OPA4141 Product Info

1 April 2026 1

Parameters

Number of channels

4

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

36

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

4.5

Rail-to-rail

In to V-, Out

GBW (typ) (MHz)

10

Slew rate (typ) (V/µs)

20

Vos (offset voltage at 25°C) (max) (mV)

3.5

Iq per channel (typ) (mA)

1.8

Vn at 1 kHz (typ) (nV√Hz)

6.5

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Offset drift (typ) (µV/°C)

2

Input bias current (max) (pA)

20

CMRR (typ) (dB)

126

Iout (typ) (A)

0.03

Architecture

FET

Input common mode headroom (to negative supply) (typ) (V)

-0.1

Input common mode headroom (to positive supply) (typ) (V)

-3.5

Output swing headroom (to negative supply) (typ) (V)

0.35

Output swing headroom (to positive supply) (typ) (V)

-0.35

Package

SOIC (D)-14-51.9 mm² 8.65 x 6

Features

  • 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

Description

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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