See datasheet for actual packaging/pinout drawings

Packaging

Package | PIN:

PW | 20

Temp:

Q (-40 to 125)

ECO Plan:

TBD

PINA4181A3PW


Quad 26V, Bidirectional, Low- or High-Side Voltage Output Current Sense Amplifier

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1 - 9 $ 1.68
10 - 24 $ 1.45
25 - 99 $ 1.40
100 - 249 $ 1.07
250 - 499 $ 1.06
500 - 749 $ 0.89
750 - 999 $ 0.72
1000 - 9999 $ 0.58

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Texas Instruments PINA4181A3PW

The INA181, INA2181, and INA4181 (INAx181) current sense amplifiers are designed for cost-optimized applications. These devices are part of a family of bidirectional, current-sense amplifiers (also called current-shunt monitors) that sense voltage drops across current-sense resistors at common-mode voltages from –0.2 V to +26 V, independent of the supply voltage. The INAx181 family integrates a matched resistor gain network in four, fixed-gain device options: 20 V/V, 50 V/V, 100 V/V, or 200 V/V. This matched gain resistor network minimizes gain error and reduces the temperature drift.

These devices operate from a single 2.7-V to 5.5-V power supply. The single-channel INA181 draws a maximum supply current of 260 µA; whereas, the dual-channel INA2181 draws a maximum supply current of 450 µA, and the quad-channel INA4181 draws a maximum supply current of 900 µA.

The INA181 is available in a 6-pin, SOT-23 package, the INA2181 is available in an 10-pin VSSOP package, and the INA4181 is available in a 20-pin TSSOP package. All device options are specified over the extended operating temperature range of –40°C to +125°C.

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