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Product details

Parameters

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Package | Pins | Size

SOIC (D) 14 52 mm² 8.65 x 6 TSSOP (PW) 14 32 mm² 5 x 6.4 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

= Featured
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 notes Overcurrent event detection circuit Jul. 31, 2018
Application notes Measuring Current to Handle Multiple Out-of-Range Conditions (Rev. B) May 18, 2018
Application notes 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 MODELS Download
SBOM944.TSC (263 KB) - TINA-TI Reference Design
SIMULATION MODELS Download
SBOM945.ZIP (14 KB) - TINA-TI Spice Model
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
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

CAD/CAE symbols

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

Ordering & quality

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