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Product details

Parameters

Common mode voltage (Max) (V) 80 Common mode voltage (Min) (V) -16 Input offset (+/-) (Max) (uV) 2500 Input offset drift (+/-) (Typ) (uV/C) 5 Gain (V/V) 50 Gain error (%) 1 Gain error drift (+/-) (Max) (ppm/°C) 100 CMRR (Min) (dB) 100 Bandwidth (kHz) 300 Supply voltage (Max) (V) 18 Supply voltage (Min) (V) 2.7 Iq (Max) (mA) 2.8 Number of channels (#) 2 Comparators (#) 0 Features Alert Function, 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

SOIC (D) 14 52 mm² 8.65 x 6 VSSOP (DGS) 10 9 mm² 3 x 3 open-in-new Find other Current sense amplifiers analog output

Features

  • Complete Current Sense Solution
  • Three Gain Options Available:
    • INA203 = 20 V/V
    • INA204 = 50 V/V
    • INA205 = 100 V/V
  • Dual Comparators:
    • Comparator 1 With Latch
    • Comparator 2 With Optional Delay
  • Common-Mode Range: –16 V to 80 V
  • High Accuracy: 3.5% (Maximum) Over
    Temperature
  • Bandwidth: 500 kHz
  • Quiescent Current: 1.8 mA
  • Packages: SO-14, TSSOP-14, VSSOP-10
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Description

The INA203, INA204, and INA205 are a family of unidirectional current-shunt monitors with voltage output, dual comparators, and voltage reference. The INA203, INA204, and INA205 can sense drops across shunts at common-mode voltages from –16 V to 80 V. The INA203, INA204, and INA205 are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to 500-kHz bandwidth.

The INA203, INA204, and INA205 also incorporate two open-drain comparators with internal 0.6-V references. On 14-pin versions, the comparator references can be overridden by external inputs. Comparator 1 includes a latching capability, and Comparator 2 has a user-programmable delay. 14-pin versions also provide a 1.2-V reference output.

The INA203, INA204, and INA205 operate from a single 2.7-V to 18-V supply. They are specified over the extended operating temperature range of –40°C to 125°C.

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 8
Type Title Date
* Datasheet INA20x Unidirectional Measurement Current-Shunt Monitor With Dual Comparators datasheet (Rev. E) Nov. 30, 2015
Technical articles A key to accurate system thermal management: monitoring both current flow and temperature Oct. 04, 2018
Application note Overcurrent event detection circuit Jul. 31, 2018
Application note Measuring Current to Handle Multiple Out-of-Range Conditions (Rev. B) May 18, 2018
Application note Overcurrent and Out-of-Range Protections (Rev. C) May 18, 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
Technical articles How to get started with current sense amplifiers – part 2 May 26, 2015

Design & development

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

Design tools & simulation

SIMULATION MODEL Download
SBOM942.ZIP (13 KB) - TINA-TI Spice Model
SIMULATION MODEL Download
SBOM943.TSC (182 KB) - TINA-TI Reference Design
SIMULATION MODEL Download
SBOMBG2.ZIP (32 KB) - PSpice 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 (...)
CALCULATION TOOL Download
SBOR020.ZIP (483 KB)

Reference designs

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
Design files

CAD/CAE symbols

Package Pins Download
SOIC (D) 14 View options
VSSOP (DGS) 10 View options

Ordering & quality

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