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For the LTC4151 - High Voltage I2C Current and Voltage Monitor
48V Power Monitor With Opto-Isolated Serial Interface High Side Current, Input Voltage and Open Fuse Monitoring with a Single LTC4151 High Side Power Sensing with Onboard ADC and I2C High Side Power Sensing with Onboard ADC and I2C Isolated Current and Voltage Monitor LTC4151 Interfaces with Isolation Barrier in -48V ATCA Application Temperature Monitoring with an NTC Thermistor While Measuring Load Current and LTC4151 Supply Current
The LTC4151 is a high side power monitor that operates over a wide voltage range of 7V to 80V. In default operation mode, the onboard 12-bit ADC continuously measures high side current, input voltage and an external voltage. Data is reported through the I2C interface when polled by a host. The LTC4151 can also perform on-demand measurement in a snapshot mode. The LTC4151 features a dedicated shutdown pin to reduce power consumption. The LTC4151-1/LTC4151-2 feature split I2C data pins to drive opto-isolators. The data out on the LTC4151-1 is inverted while that on the LTC4151-2 is not.