Product details

Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.3 Rail-to-rail In, Out GBW (Typ) (MHz) 6.5 Slew rate (Typ) (V/us) 5 Vos (offset voltage @ 25 C) (Max) (mV) 5 Iq per channel (Typ) (mA) 0.585 Vn at 1 kHz (Typ) (nV/rtHz) 15 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 3 Features Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 90 Output current (Typ) (mA) 5 Architecture CMOS
Number of channels (#) 4 Total supply voltage (Max) (+5V=5, +/-5V=10) 5.5 Total supply voltage (Min) (+5V=5, +/-5V=10) 2.3 Rail-to-rail In, Out GBW (Typ) (MHz) 6.5 Slew rate (Typ) (V/us) 5 Vos (offset voltage @ 25 C) (Max) (mV) 5 Iq per channel (Typ) (mA) 0.585 Vn at 1 kHz (Typ) (nV/rtHz) 15 Rating Catalog Operating temperature range (C) -40 to 125 Offset drift (Typ) (uV/C) 3 Features Input bias current (Max) (pA) 10 CMRR (Typ) (dB) 90 Output current (Typ) (mA) 5 Architecture CMOS
SOIC (D) 14 52 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4
  • Low Offset: 5 mV (Maximum)
  • Low IB: 10 pA (Maximum)
  • High Bandwidth: 6.5 MHz
  • Rail-to-Rail Input and Output
  • Single Supply: 2.3 V to 5.5 V
  • Shutdown: OPAx373
  • Specified up to 125°C
  • Microsize Packages: 5-Pin SOT-23, 6-Pin SOT-23, 8-Pin SOT-23, and 10-Pin VSON
  • Low Offset: 5 mV (Maximum)
  • Low IB: 10 pA (Maximum)
  • High Bandwidth: 6.5 MHz
  • Rail-to-Rail Input and Output
  • Single Supply: 2.3 V to 5.5 V
  • Shutdown: OPAx373
  • Specified up to 125°C
  • Microsize Packages: 5-Pin SOT-23, 6-Pin SOT-23, 8-Pin SOT-23, and 10-Pin VSON

The OPA373 and OPA374 families of operational amplifiers are low power and low cost with excellent bandwidth (6.5 MHz) and slew rate (5 V/µs). The input range extends 200 mV beyond the rails and the output range is within 25 mV of the rails. The speed-power ratio and small size make them ideal for portable and battery-powered applications.

The OPA373 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current that is less than 1 µA.

The OPA373 and OPA374 families of operational amplifiers are specified for single or dual power supplies of 2.7 V to 5.5 V, with operation from 2.3 V to 5.5 V. All models are specified for –40°C to 125°C.

The OPA373 and OPA374 families of operational amplifiers are low power and low cost with excellent bandwidth (6.5 MHz) and slew rate (5 V/µs). The input range extends 200 mV beyond the rails and the output range is within 25 mV of the rails. The speed-power ratio and small size make them ideal for portable and battery-powered applications.

The OPA373 family includes a shutdown mode. Under logic control, the amplifiers can be switched from normal operation to a standby current that is less than 1 µA.

The OPA373 and OPA374 families of operational amplifiers are specified for single or dual power supplies of 2.7 V to 5.5 V, with operation from 2.3 V to 5.5 V. All models are specified for –40°C to 125°C.

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Technical documentation

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Type Title Date
* Data sheet OPAx373, OPAx374 6.5-MHz, 585-µA, Rail-to-Rail I/O CMOS Operational Amplifier datasheet (Rev. F) 28 Sep 2016
E-book An Engineer’s Guide to Designing with Precision Amplifiers 29 Apr 2021
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
Application note OPA373, OPA2373, OPA374, OPA2374, OPA4374 EMI Immunity Performance (Rev. A) 02 Nov 2012

Design & development

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

Simulation model

OPA4374 TINA-TI Reference Design

SBOM561.TSC (100 KB) - TINA-TI Reference Design
Simulation model

OPA4374 TINA-TI Spice Model

SBOM562.ZIP (6 KB) - TINA-TI Spice Model
Simulation model

OPA4374 PSpice Model

SBOM563.ZIP (37 KB) - PSpice Model
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 (...)
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 (...)
Reference designs

TIDM-1003 — Low Voltage, 50A Sensorless FOC Reference Design for PM or BLDC Motors

The design is a 30V to 54 V Brushless DC motor (BLDC) or Permanent-magnet Synchronous Motors (PMSM) controller for low voltage, high current, high power ebike, power tool, fan, and pump applications. The design uses the Texas Instruments UCC27211D MOSFET drivers, CSD19506KCS 80V NexFET™ power (...)
Reference designs

TIDA-00660 — 70V, 60mA White LED Driver with Dimming Control and Automatic Thermal Scale-Back Reference Design

Compact, High Efficienct (>90%) White LED Driver.  Drives a 440 lumen White LED at up to 70V at up to 60mA from a 6V to 18V source.  Includes voltage controlled dimming with automatic thermal to current scale-back for preventing high LED temperatures.  Designed for genral purpose (...)
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SOIC (D) 14 View options
TSSOP (PW) 14 View options

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