The ADM1192 is an integrated current sense amplifier that offers digital current and voltage monitoring via an on-chip 12-bit analog-to-digital converter (ADC), communicated through an I2C® interface. An internal current sense amplifier measures the current flowing through the current sense pin and converts it to a digital format. The digital current value can be read via the I2C interface.
The ADM1192 is a digital power monitor IC that integrates a precision current‑sense amplifier, voltage input, and a 12‑bit ADC. It operates from 3.15 V to 26 V and communicates via a PC‑compatible I²C interface up to 400 kHz. The device includes ALERT, SETV, TIMER, and CLRB pins for over‑current protection and hot‑swap control.
The document contains a functional block diagram, pin configuration, absolute maximum ratings, thermal characteristics, and typical performance graphs. Detailed specifications cover operating voltage, supply current, ADC conversion time, pin thresholds, and over‑current trip settings, along with guidance on using the ALERT output and I²C addressing.
| Operating Voltage Range (VCC) | 3.15 V to 26 V |
|---|---|
| Supply Current | 1.7 mA to 2 mA |
| ADC Conversion Time | 150 µs |
| I²C Clock Frequency (max) | 400 kHz |
| Number of I²C Addresses | Up to 4 |
The ADM1192 operates from 3.15 V to 26 V.
The device supports a maximum I²C clock frequency of 400 kHz.
Up to four unique I²C addresses can be created by configuring the ADR pin.
The ADC conversion time is specified as 150 µs.