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Product details

Parameters

Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -16 Input offset (+/-) (Max) (uV) 2000 Input offset drift (+/-) (Typ) (uV/C) 2.5 Gain (V/V) 20 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 500 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 0.95 Number of channels (#) 1 Comparators (#) 0 Features Low-side Capable Rating Catalog Operating temperature range (C) -40 to 125 open-in-new Find other Current sense amplifiers analog output

Package | Pins | Size

SOT-23 (DBV) 5 5 mm² 2.9 x 1.6 open-in-new Find other Current sense amplifiers analog output

Features

  • Wide Common-Mode Voltage:
    –16 V to +80 V
  • Low Error: 3.0% Over Temp (maximum)
  • Bandwidth: Up to 500 kHz
  • Three Transfer Functions Available: 20 V/V,
    50 V/V, and 100 V/V
  • Quiescent Current: 900 µA (maximum)
  • Complete Current Sense Solution
  • APPLICATIONS
    • Welding Equipment
    • Notebook Computers
    • Cell Phones
    • Telecom Equipment
    • Automotive
    • Power Management
    • Battery Chargers

All other trademarks are the property of their respective owners

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Description

The INA193–INA198 family of current shunt monitors with voltage output can sense drops across shunts at common-mode voltages from –16 V to +80 V, independent of the INA19x supply voltage. They are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V. The 500 kHz bandwidth simplifies use in current control loops. The INA193–INA195 devices provide identical functions but alternative pin configurations to the INA196–INA198 devices, respectively.

The INA193–INA198 devices operate from a single 2.7-V to 18-V supply, drawing a maximum of 900 µA of supply current. They are specified over the extended operating temperature range (–40°C to +125°C), and are offered in a space-saving SOT-23 package.

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Technical documentation

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Type Title Date
* Datasheet INA19x Current Shunt Monitor −16 V to +80 V Common-Mode Range datasheet (Rev. G) Jan. 03, 2015
White papers Simplifying Current Sensing (Rev. A) Jan. 09, 2020
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Selection guides Current Sense Amplifiers (Rev. D) Apr. 04, 2018
Technical articles System trade-offs for high- and low-side current measurements Jun. 01, 2017
Technical articles Why should you care about overcurrent protection in your system? Jun. 16, 2016
Application notes Current Sensing With Near-Zero Common Mode Voltage with INA19xA-Q1 Oct. 26, 2015
Technical articles How to get started with current sense amplifiers – part 2 May 26, 2015
Application notes A dual-polarity, bidirectional current-shunt monitor Oct. 22, 2008
Application notes Q4 2008 Issue Analog Applications Journal Oct. 22, 2008
Application notes Low-cost current-shunt monitor IC revives moving-coil meter design Apr. 18, 2006

Design & development

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

Design tools & simulation

SIMULATION MODELS Download
SBOC054C.ZIP (58 KB) - PSpice Model
SIMULATION MODELS Download
SBOC164C.TSC (101 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM225B.ZIP (5 KB) - TINA-TI Spice Model
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

Reference designs

REFERENCE DESIGNS Download
6V - 18V Input Sync-Buck 0.5A LED Driver Reference Design
PMP10487 This LM20323 integrated FET sync-buck converter regulates the current in a white LED to 0.5A with minimum parts count. LED current is accurately measured with an INA193 and provides feedback to regulate the output current.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Current Shunt Monitor with Transient Robustness Reference Design
TIDA-00302 This high-side current shunt monitor is used to measure the voltage developed across a current-sensing resistor when current passes through it.

Additionally, an external protection circuit is implemented to provide surge and fast-transient protection and demonstrate the different immunity levels to (...)

document-generic Schematic document-generic User guide
Design files
REFERENCE DESIGNS Download
Current Controlled Boost/Buck-Boost for LED Drivers
PMP4640 — PMP4640 is a current controlled LED driver with an input voltage range of 1.8V to 5.5V. It is ideal for flashlight applications with 2 to 3 batteries. The output current is 600mA and the output voltage can vary in a broad range (5.5V max.).
Design files
REFERENCE DESIGNS Download
80V dc Input, 2-Channel, 350mA LED Driver (10V to 60V String)
PMP4154 — This reference design contains two duplicate LED drivers. Each circuit drives a 10V to 60V series connected string of LEDs at 350mA. The input range is 70VDC to 90VDC. The TPS40210 boost controller is used in an "upside-down" buck topology for a simple, low-cost solution. This circuit includes an (...)
REFERENCE DESIGNS Download
REFERENCE DESIGNS Download
Design files

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Package Pins Download
SOT-23 (DBV) 5 View options

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