HomedatasheetINA169NA/3K

INA169NA/3K Datasheet

High-Side Measurement Current Shunt Monitor
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Description

Description
The INA139 and INA169 are high-side, unipolar, current shunt monitors. Wide input common-mode voltage range, high-speed, low quiescent current, and tiny SOT-23 packaging enable use in a variety of applications.
Input common-mode and power-supply voltages are independent and can range from 2.7 V to 40 V for the INA139 and 2.7 V to 60 V for the INA169. Quiescent current is only 60 µA, which permits connecting the power supply to either side of the current measurement shunt with minimal error.
The device converts a differential input voltage to a current output. This current is converted back to a voltage with an external load resistor that sets any gain from 1 to over 100. Although designed for current shunt measurement, the circuit invites creative applications in measurement and level shifting.
Both the INA139 and INA169 are available in 5-pin SOT-23 packages. The INA139 device is specified for the –40°C to +125°C temperature range, and the INA169 is specified from –40°C to +85°C.

Features
• Complete Unipolar High-Side Current
   Measurement Circuit
• Wide Supply and Common-Mode Range
• INA139: 2.7 V to 40 V
• INA169: 2.7 V to 60 V
• Independent Supply and Input Common-Mode
   Voltages
• Single Resistor Gain Set
• Low Quiescent Current: 60 µA (Typical)
• 5-Pin, SOT-23 Packages

Applications
• Current Shunt Measurement:
   – Automotive, Telephone, Computers
• Portable and Battery-Backup Systems
• Battery Chargers
• Power Management
• Cell Phones
• Precision Current Source

Features

Parameters


Manufacturer information

TEXAS INSTRUMENTS

Texas Instruments introduction - Texas Instruments Incorporated (TI) is a global semiconductor design and manufacturing company that develops analog ICs and embedded processors. By employing the world's brightest minds, TI creates innovations that shape the future of technology. TI is helping more than 100,000 customers transform the future, today.

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