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INA155

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5.5-V single-Supply, 550-KHz (G=10), 6.5-V/µs slew rate, 1-mV offset, RRO, CMOS instrumentation a

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Data sheet

INA155

ACTIVE
Data sheet Order now

Product details

Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 1000 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 40 Features Cost Optimized CMRR (min) (dB) 92 Input bias current (±) (max) (nA) 0.01 Iq (typ) (mA) 1.7 Bandwidth at min gain (typ) (MHz) 0.55 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.015 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -0.005 Input common mode headroom (to negative supply) (typ) (V) 0.3 Input common mode headroom (to positive supply) (typ) (V) -0.3 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 4.5
Number of channels 1 Vs (max) (V) 5.5 Vs (min) (V) 2.7 Input offset (±) (max) (µV) 1000 Voltage gain (min) (V/V) 10 Voltage gain (max) (V/V) 50 Noise at 1 kHz (typ) (nV√Hz) 40 Features Cost Optimized CMRR (min) (dB) 92 Input bias current (±) (max) (nA) 0.01 Iq (typ) (mA) 1.7 Bandwidth at min gain (typ) (MHz) 0.55 Gain error (±) (max) (%) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog Type Resistor Gain nonlinearity (±) (max) (%) 0.015 Output swing headroom (to negative supply) (typ) (V) 0.005 Output swing headroom (to positive supply) (typ) (V) -0.005 Input common mode headroom (to negative supply) (typ) (V) 0.3 Input common mode headroom (to positive supply) (typ) (V) -0.3 Noise at 0.1 Hz to 10 Hz (typ) (µVPP) 4.5
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 mm² 3 x 4.9
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Technical documentation

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Type Title Date
* Data sheet Single-Supply, Rail-to-Rail Output, CMOS Instrumentation Amplifier datasheet 27 Sep 2000
Application note Importance of Input Bias Current Return Paths in Instrumentation Amplifier Apps PDF | HTML 27 Jul 2021
Technical article What is an instrumentation amplifier? 09 Aug 2019
E-book The Signal e-book: A compendium of blog posts on op amp design topics 28 Mar 2017
Technical article How to layout a PCB for an instrumentation amplifier 14 Oct 2016
EVM User's guide Universal Instrumentation Amplifier EVM User’s Guide (Rev. B) PDF | HTML 09 Aug 2016
Technical article Dealing with rejection: Instrumentation amplifier PSRR and CMRR (Part I) 25 Nov 2013
Application note Optoelectronics Circuit Collection 11 Jun 2001

Design & development

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

Evaluation board

INAEVM — Universal Instrumentation Amplifier Evaluation Module

The universal INAEVM (Instrumentation Amplifier Evaluation Module) is available in two package options that simplify prototyping precision instrumentation amplifiers in either the SO-8 (D) package or the MSOP-8(DGK) package with the pinout shown.  See the chart in the user guide (...)

User guide: PDF | HTML
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Simulation model

INA155 PSpice Model (Rev. B)

SBOM029B.ZIP (27 KB) - PSpice Model
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Simulation model

INA155 TINA-TI Reference Design (Rev. B)

SBOC158B.TSC (82 KB) - TINA-TI Reference Design
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Simulation model

INA155 TINA-TI Spice Model (Rev. A)

SBOM219A.ZIP (4 KB) - TINA-TI Spice Model
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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 (...)
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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
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Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options
TI's Standard Terms and Conditions for Evaluation Items apply.

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