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) 100 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 200 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 1.05 Number of channels (#) 1 Comparators (#) 0 Features Low-side Capable Rating Automotive TI functional safety category Functional Safety-Capable 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


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The INA19xA-Q1 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 INA19xA 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 and monitoring DC motor health. The INA193A–INA195A provide identical functions but alternative pin configurations to the INA196A–INA198A, respectively.

The INA19xA-Q1 operate from a single 2.7-V to 18-V supply. 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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Similar products you might be interested in
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Same functionality and pinout but is not an equivalent to the compared device:
INA193A-Q1 ACTIVE AEC-Q100, -16 to 80V, 500kHz current sense amplifier The device has identical performance but at a gain of 20
INA194A-Q1 ACTIVE AEC-Q100, -16 to 80V, 500kHz current sense amplifier The device has identical performance but at a gain of 50
Same functionality but is not pin-for-pin or parametrically equivalent to the compared device:
INA198A-Q1 ACTIVE AEC-Q100, -16 to 80V, 500kHz current sense amplifier The device has identical performance and functionality with an alternate pinout

Technical documentation

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Type Title Date
* Datasheet INA19xA-Q1 Current Shunt Monitors –16-V to 80-V Common-Mode Range datasheet (Rev. E) Jan. 08, 2021
Technical articles How current-sense amplifiers monitor satellite health Feb. 08, 2021
Functional safety information INA19xA-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) Oct. 29, 2020
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 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 note Current Sensing With Near-Zero Common Mode Voltage with INA19xA-Q1 Oct. 26, 2015
Application note 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

SBOC056B.ZIP (39 KB) - PSpice Model
SBOC166B.TSC (101 KB) - TINA-TI Reference Design
SBOM227A.ZIP (5 KB) - TINA-TI Spice Model
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 (...)
  • 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
  • (...)
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
SBOR020A.ZIP (525 KB)

Reference designs

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
Automotive Digitally Controlled Boost Power Supply
TIDA-00282 This TI reference design is an automotive voltage boost converter module. The purpose of this module is to supply a steady voltage to vehicle electronics by boosting during voltage droop events such as engine crank. The design is based on the C2000 Real-Time Microcontroller, and will provide up to (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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Support & training

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