ADM1294-1BARUZ

Overview

The ADM1294-1BARUZ is a low-side supply monitor featuring an integrated shunt regulator for wide voltage range operation. It utilizes an internal 12-bit ADC to digitally measure current, voltage, and power via a PMBus-compatible I2C interface. The device operates within a supply voltage range of 2.95 V to 13 V and supports I/O levels of 0.4 V/0.8 V low and 1.1 V high. It functions reliably across an operating temperature range of -40°C to 105°C.

Feature Summary

• Integrated shunt regulator enables powering and monitoring in wide voltage ranges
• High-precision digital measurement using an on-chip 12-bit analog-to-digital converter
• PMBus-compatible I2C communication interface for system integration

Applications

• Low-side supply monitoring in industrial systems
• Power management in space-constrained electronic designs
• Digital current and power monitoring applications

Procurement Notes

Verify the specific suffix BARUZ corresponds to the 14-TSSOP package configuration when sourcing. Confirm that the component meets the required operating temperature range of -40°C to 105°C for your application environment. Ensure compatibility with the 2.95 V to 13 V supply voltage range during system design validation.

Selection Notes

Select this component for applications requiring precise digital monitoring of low-side supplies without external sensing resistors. The integrated shunt regulator simplifies board layout by eliminating external biasing components. Consider the 14-TSSOP package size if space constraints are critical compared to larger LFCSP alternatives.

Part Context

This part belongs to the ADM129x family of high-precision integrated digital power monitors from Analog Devices. These devices combine sensing and regulation capabilities into a single compact solution. The ADM1294 variant specifically targets low-side monitoring scenarios where wide input voltage ranges and digital feedback are necessary for efficient power management.

Replacement Considerations

The ADM1294-1BACPZ-RL7 is a documented alternative offering similar monitoring capabilities in a 16-Lead LFCSP package. Verify pinout compatibility and package dimensions before substitution, as the physical footprint differs between the TSSOP and LFCSP configurations.