The INA232 device
is a 16-bit digital current
monitor with an I2C/SMBus-compatible interface that is compliant with a
wide range of digital bus voltages such as 1.2 V, 1.8 V, 3.3 V, and 5.0 V. The
device monitors the voltage across an external sense resistor and reports values for
current, bus voltage, and power.
The INA232 features
programmable ADC conversion times and averaging. The device also has a programmable
calibration value with an internal multiplier that enables direct readouts of
current in amperes and power in watts. The device monitors the bus voltage
present on the IN– pin and can alert on over/under current as well as over/under
voltage conditions. High input impedance while in current measurement mode allows use of larger
current sense resistors needed to measure small value system currents.
The INA232 senses
current on common-mode bus voltages that can vary from –0.3 V to 48 V,
independent of the supply voltage. The device operates from a single 1.7-V to 5.5-V
supply, drawing a typical supply current of 300 µA in normal operation. The device
can be placed in a low-power standby mode where the typical operating current is 2.2
µA.
The INA232 device
is a 16-bit digital current
monitor with an I2C/SMBus-compatible interface that is compliant with a
wide range of digital bus voltages such as 1.2 V, 1.8 V, 3.3 V, and 5.0 V. The
device monitors the voltage across an external sense resistor and reports values for
current, bus voltage, and power.
The INA232 features
programmable ADC conversion times and averaging. The device also has a programmable
calibration value with an internal multiplier that enables direct readouts of
current in amperes and power in watts. The device monitors the bus voltage
present on the IN– pin and can alert on over/under current as well as over/under
voltage conditions. High input impedance while in current measurement mode allows use of larger
current sense resistors needed to measure small value system currents.
The INA232 senses
current on common-mode bus voltages that can vary from –0.3 V to 48 V,
independent of the supply voltage. The device operates from a single 1.7-V to 5.5-V
supply, drawing a typical supply current of 300 µA in normal operation. The device
can be placed in a low-power standby mode where the typical operating current is 2.2
µA.