The INA139-Q1 and INA169-Q1
(INA1x9-Q1) are high-side, unidirectional, current shunt monitors. Wide input common-mode voltage
range, high-speed, low quiescent current, and TSSOP-8 packaging enable use in a variety of
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-Q1 and INA169-Q1 are available in a TSSOP-8 package, and are specified
for the –40°C to +125°C temperature range.
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