Home Amplifiers Current sense amplifiers Current sense amplifiers analog output
Home
Amplifiers
Current sense amplifiers
Current sense amplifiers analog output

INA193

ACTIVE

-16 to 80V, 500kHz current sense amplifier

Order now
Data sheet

A newer version of this product is available

open-in-new Compare products
Drop-in replacement with upgraded functionality to the compared device.
INA281 ACTIVE -4-V to 110-V, 1.3-MHz, high-precision current sense amplifier

This product offers improved accuracy, higher bandwidth and an extended common mode voltage range.

INA193

ACTIVE
Data sheet Order now

Product details

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
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
SOT-23 (DBV) 5 5 mm² 2.9 x 1.6
  • 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
  • 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

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.

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.
open-in-new Find other Current sense amplifiers analog output
Download

Technical documentation

star =Top documentation for this product selected by TI
No results found. Please clear your search and try again.
View all 11
Type Title Date
* Data sheet INA19x Current Shunt Monitor −16 V to +80 V Common-Mode Range datasheet (Rev. G) PDF | HTML 03 Jan 2015
Application note Using a PCB Copper Trace as a Current-Sense Shunt Resistor PDF | HTML 25 Jan 2022
Selection guide Current Sense Amplifiers (Rev. E) 20 Sep 2021
Technical article Solving the multidecade current-measurement challenge in your 48-V BMS application 14 Jun 2021
Technical article How current-sense amplifiers monitor satellite health 08 Feb 2021
E-book Simplifying Current Sensing (Rev. A) 09 Jan 2020
Technical article A key to accurate system thermal management: monitoring both current flow and temperature 04 Oct 2018
Technical article System trade-offs for high- and low-side current measurements 01 Jun 2017
Analog Design Journal A dual-polarity, bidirectional current-shunt monitor 22 Oct 2008
Analog Design Journal Q4 2008 Issue Analog Applications Journal 22 Oct 2008
Analog Design Journal Low-cost current-shunt monitor IC revives moving-coil meter design 18 Apr 2006

Design & development

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

Simulation model

INA193 PSpice Model (Rev. C)

SBOC054C.ZIP (58 KB) - PSpice Model
Download
Simulation model

INA193 TINA-TI Reference Design (Rev. C)

SBOC164C.TSC (101 KB) - TINA-TI Reference Design
Download
Simulation model

INA193 TINA-TI Spice Model (Rev. B)

SBOM225B.ZIP (5 KB) - TINA-TI Spice Model
Download
Calculation tool

CS-AMPLIFIER-ERROR-TOOL — Current sense amplifier comparison and error tool

This Excel calculator provides a comparison between two and five of our standard current sense amplifiers, delivering a chart containing the basic parameters of each device. This calculator also takes system condition inputs from users such as common-mode voltage, supply voltage, shunt resistor (...)
Download
Calculation tool

Current Sense Amplifier Comparison and Error Tool (Rev. E)

SBOR020E.ZIP (592 KB)
Download
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 (...)
Request
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
View options
Reference designs

PMP10487 — 6V - 18V Input Sync-Buck 0.5A LED Driver Reference Design

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.
Test report: PDF
Schematic: PDF
Reference designs

TIDA-00302 — Current Shunt Monitor with Transient Robustness Reference Design

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 (...)

Design guide: PDF
Schematic: PDF
Package Pins Download
SOT-23 (DBV) 5 View options

Ordering & quality

Information included:
  • RoHS
  • REACH
  • Device marking
  • Lead finish/Ball material
  • MSL rating/Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

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