G

0.6-V

Reference

Comparator

OUT

CMP

IN

CMP

OUT

RESET

V

IN

V

IN+

GND

INA200, INA201, INA202

SBOS374D – NOVEMBER 2006 – REVISED OCTOBER 2015

www.ti.com

7 Detailed Description

7.1 Overview

The INA200, INA201, and INA202 devices are high-side current-shunt monitors with voltage output. The

INA200–INA202 devices can sense drops across shunts at common-mode voltages from –16 V to 80 V. The

INA200–INA202 devices are available with three output voltage scales: 20 V/V, 50 V/V, and 100 V/V, with up to

500-kHz bandwidth. The INA200, INA201, and INA202 devices also incorporate an open-drain comparator and

internal reference providing a 0.6-V threshold. External dividers are used to set the current trip point. The

comparator includes a latching capability, which can be made transparent by grounding (or leaving open) the

RESET pin. The INA200, INA201, and INA202 devices operate from a single 2.7 to 18-V supply, drawing a

maximum of 1800

μA of supply current. Package options include the very small MSOP-8 and the SO-8. All

versions are specified over the extended operating temperature range of –40°C to 125°C.

7.2 Functional Block Diagram

7.3 Feature Description

7.3.1 Basic Connections

resistance in series with the shunt resistance.

Power-supply bypass capacitors are required for stability. Applications with noisy or high-impedance power

supplies may require additional decoupling capacitors to reject power-supply noise. Connect bypass capacitors

close to the device pins.

12

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