INA597

ACTIVE

Precision (200µV offset), 2MHz, 88 dB CMRR, low power, e-trim™ difference amplifier

Top

Product details

Parameters

Number of channels (#) 1 Vs (Min) (V) 4.5 Vs (Max) (V) 36 CMRR (Min) (dB) 88 Common mode input low (Min) (V) -54.3 Common mode input high (Max) (V) 54 Input offset (+/-) (Max) (uV) 200 Iq (Typ) (mA) 1.1 Small signal bandwidth (Typ) (MHz) 2 Slew rate (Typ) (V/us) 18 Gain (Min) (V/V) 0.5 Gain (Max) (V/V) 2 Gain error (+/-) (Max) (%) 0.03 Rating Catalog Operating temperature range (C) -40 to 125 Gain drift (Max) (ppm/C) 1 open-in-new Find other Difference amplifiers

Package | Pins | Size

VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Difference amplifiers

Features

  • Low offset voltage: 200 µV (maximum)
  • Low offset voltage drift: ±5 µV/°C (maximum)
  • Low noise: 18 nV/√Hz at 1 kHz
  • Low gain error: ±0.03% (maximum)
  • High common-mode rejection: 88 dB (minimum)
  • Wide bandwidth: 2-MHz GBW
  • Low quiescent current: 1.1 mA per amplifier
  • High slew rate: 18 V/µs
  • High capacitive load drive capability: 500 pF
  • Wide supply range:
    • Single-supply: 4.5 V to 36 V
    • Dual-supply: ±2.25 V to ±18 V
  • Specified temperature range:
    –40°C to +125°C
  • 8-Pin VSSOP package

All trademarks are the property of their respective owners.

open-in-new Find other Difference amplifiers

Description

The INA597 is a low-power, wide-bandwidth, difference amplifier for cost-sensitive applications. The INA597 consists of a precision operational amplifier (op amp) and a precision resistor network. Excellent tracking of resistors maintains gain accuracy and common-mode rejection over temperature. Unique features such as low offset (200 µV, maximum), low offset drift (5 µV/°C maximum) high slew rate (18 V/µs), and high capacitive load drive of up to 500 pF make the INA597 a robust, high-performance difference amplifier for high-voltage industrial applications.

The common-mode range of the internal op amp extends to the negative supply, and enables the device to operate in single-supply applications. The device operates on single (4.5 V to 36 V) or dual supplies (±2.25 V to ±18 V).

The difference amplifier is the foundation of many commonly used circuits. The INA597 provides this circuit function without using an expensive precision resistor network.

The INA597 is available in 8-pin VSSOP surface-mount package, and is specified for operation over the industrial temperature range of –40°C to +125°C.

 

 

 

open-in-new Find other Difference amplifiers
Download

Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet INA597 High-Precision, Wide-Bandwidth e-trim™ Difference Amplifier datasheet Aug. 29, 2019
Application notes Analysis of Improved Howland Current Pump Configurations Oct. 07, 2020
Application notes Precision signal-conditioning solutions for motor control with position feedback Jun. 14, 2019
Application notes High-side current sources for industrial applications Mar. 12, 2019
Application notes Level Shifting Signals With Differential Amplifiers (Rev. A) Apr. 02, 2018
Application notes Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. A) Jul. 20, 2017
Technical articles Difference Amplifiers—the need for well-matched resistors Apr. 24, 2012
Application notes Extending the Common-Mode Range of Difference Amplifiers Sep. 27, 2000

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
25
Description
Be confident in your choice of difference amplifier and easily evaluate and compare devices with the DIFFAMP-EVM. With support for a variety of configurations, this module can be tailored towards your desired application for a reliable evaluation. A DIP adapter section is provided to enable (...)
Features
  • Intuitive jumper configuration as difference amplifier, precision gain amplifier, or current source
  • Socketed IC connection for multi-package evaluation and easy comparison between devices
  • 6 DIP adapter boards supporting SOIC and MSOP packages
  • Onboard reference buffer for single supply operation
EVALUATION BOARDS Download
document-generic User guide
10
Description

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 (...)

Features
  • Simplifies prototyping of SMT IC’s
  • Supports 6 common package types
  • Low Cost

Design tools & simulation

SIMULATION MODELS Download
SBOMB10.ZIP (170 KB) - PSpice Model
SIMULATION MODELS Download
SBOMB11.ZIP (7 KB) - TINA-TI Spice Model
SIMULATION MODELS Download
SBOMB12.TSC (278 KB) - TINA-TI Reference Design
SIMULATION TOOLS Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — 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 (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
SIMULATION TOOLS Download
SPICE-based analog simulation program
TINA-TI 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 (...)
document-generic User guide

CAD/CAE symbols

Package Pins Download
VSSOP (DGK) 8 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

Related videos