Product Features：
The NA3221 is a three-channel. The NA3221 is a three-channel high side current and bus voltage monitor with an I2C and SMBUS compatible interface.The INA322 not only monitors the shunt voltage drop and bus supply voltage, but also provides programmable transition time and average calculation modes for these signals, as well as monitoring the bus currents.The INA322 provides critical alarms and warning alarms, and programmable alarms and warning outputs. Programmable alarm and warning outputs for detecting multiple over-range conditions programmable on each channel. Software reset is supported.

Product parameters 
Module supply voltage: DC2. 7V~5.5V
Power supply current consumption: 350μA (typical)
Senseable bus voltage range: 0V to 26V
High accuracy: - Offset voltage: ≤±80μV
                         -Gain Error: ≤0.25%
Internal ADC accuracy: 13 bits
Visible light range:1-5000Lux
Module size: 38.6mm*31.6mm, with two M3 mounting holes
Communication interface: IIC fast mode 1kHz-4kHz high speed mode 1kHz-2.44MHz