The INA190 is a low-power, voltage-output, currentshunt
monitor (also called a current-sense amplifier).
This device is commonly used for overcurrent
protection, precision current measurement for system
optimization, or in closed-loop feedback circuits. The
INA190 can sense drops across shunts at commonmode
voltages from –0.2 V to +40 V, independent of
the supply voltage. Five fixed gain options are
available: 25 V/V, 50 V/V, 100 V/V, 200 V/V, or 500
V/V. The low input bias current of the INA190 permits
the use of larger current-sense resistors, thus
providing accurate current measurements in the
microamp range. The low offset voltage of the zerodrift
architecture extends the dynamic range of the
current measurement. This feature allows for smaller
sense resistors with lower power loss, while still
providing accurate current measurements.
The INA190 operates from a single 1.7-V to 5.5-V
power supply, and draws a maximum of 65 μA of
supply current when enabled; only 0.1 μA when
disabled. The device is specified over the operating
temperature range of –40°C to +125°C, and offered
in UQFN and SC70 packages. INA190A1IDCKR
INA190A1IDCKT
INA190A1IRSWR
INA190A1IRSWT
INA190A2IDCKR
INA190A2IDCKT
INA190A2IRSWR
INA190A2IRSWT
INA190A3IDCKR
INA190A3IDCKT
INA190A3IRSWR
INA190A3IRSWT
INA190A4IDCKR
INA190A4IDCKT
INA190A4IRSWR
INA190A4IRSWT
INA190A5IDCKR
INA190A5IDCKT
INA190A5IRSWR
INA190A5IRSWT
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