INA117

ACTIVE

High Common-Mode Voltage Difference Amplifier

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Product details

Parameters

Number of channels (#) 1 Vs (Min) (V) 10 Vs (Max) (V) 36 CMRR (Min) (dB) 86 Common mode input low (Min) (V) -200 Common mode input high (Max) (V) 200 Input offset (+/-) (Max) (uV) 1000 Iq (Typ) (mA) 2 Small signal bandwidth (Typ) (MHz) 0.2 Slew rate (Typ) (V/us) 2.6 Gain (Min) (V/V) 1 Gain (Max) (V/V) 1 Gain error (+/-) (Max) (%) 0.05 Rating Catalog Operating temperature range (C) -40 to 85 Gain drift (Max) (ppm/C) 10 open-in-new Find other Difference amplifiers

Package | Pins | Size

PDIP (P) 8 93 mm² 9.81 x 9.43 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Difference amplifiers

Features

  • COMMON-MODE INPUT RANGE:
    ±200V (VS = ±15V)
  • PROTECTED INPUTS:
    ±500V Common-Mode
    ±500V Differential
  • UNITY GAIN: 0.02% Gain Error max
  • NONLINEARITY: 0.001% max
  • CMRR: 86dB min
  • APPLICATIONS
    • CURRENT MONITOR
    • BATTERY CELL-VOLTAGE MONITOR
    • GROUND BREAKER
    • INPUT PROTECTION
    • SIGNAL ACQUISITION IN NOISY ENVIRONMENTS
    • FACTORY AUTOMATION
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Description

The INA117 is a precision unity-gain difference amplifier with very high common-mode input voltage range. It is a single monolithic IC consisting of a precision op amp and integrated thin-film resistor network. It can accurately measure small differential voltages in the presence of common-mode signals up to ±200V. The INA117 inputs are protected from momentary common-mode or differential overloads up to ±500V.

In many applications, where galvanic isolation is not essential, the INA117 can replace isolation amplifiers. This can eliminate costly isolated input-side power supplies and their associated ripple, noise and quiescent current. The INA117\x92s 0.001% nonlinearity and 200kHz bandwidth are superior to those of conventional isolation amplifiers.

The INA117 is available in 8-pin plastic mini-DIP and SO-8 surface-mount packages, specified for the \x9640°C to +85°C temperature range. The metal TO-99 models are available specified for the \x9640°C to +85°C and \x9655°C to +125°C temperature range.

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Exact equivalent in functionality and parametrics to the compared device:
INA149 ACTIVE High Common Mode Voltage Difference Amplifier For wider common mode input range (±275) and lower power consumption (0.81mA) see the INA149

Technical documentation

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Type Title Date
* Datasheet INA117: High Common-Mode Voltage Difference Amplifier datasheet (Rev. A) Nov. 26, 2000
Application note Offset Correction Methods: Laser Trim, e-Trim, and Chopper (Rev. C) Apr. 13, 2021
Application note INA117 and INA149 Differential Input Range (Rev. A) Jun. 04, 2020
E-book The Signal e-book: A compendium of blog posts on op amp design topics Mar. 28, 2017
More literature A High-Voltage Bidirectional Current Source Dec. 19, 2013
Technical article Difference Amplifiers—the need for well-matched resistors Apr. 25, 2012
Application note AC Coupling Instrumentation and Difference Amplifiers Sep. 27, 2000
Application note Extending the Common-Mode Range of Difference Amplifiers Sep. 27, 2000
Application note Implementation and Applications of Current Sources and Current Receivers Sep. 27, 2000
Application note Input Filtering The INA117 ±200V Difference Amplifier Sep. 27, 2000
Application note ±200V Difference Amplifier with Common-Mode Voltage Monitor 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 BOARD 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 MODEL Download
SBOC139A.TSC (59 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOM015A.ZIP (57 KB) - PSpice Model
SIMULATION MODEL Download
SBOM208A.ZIP (4 KB) - TINA-TI Spice Model
SIMULATION TOOL 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 TOOL 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
PDIP (P) 8 View options
SOIC (D) 8 View options
TO-99 (LMC) 8 View options

Ordering & quality

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Support & training

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