ADS7924 - Texas Instruments

ADS7924 Analog-to-Digital Converter

The ADS7924 is a four-channel, 12-bit, analog-todigital converter (ADC) with an I2C™ interface. With its low-power ADC core, support for low-supply operation, and a flexible measurement sequencer that essentially eliminates power consumption between conversions, the ADS7924 forms a complete monitoring system for power-critical applications such as battery-po.

Features

•1 Intelligent Monitoring:
  – Auto-Sequencing of 4-Channel Multiplexer
  – Individual Alarm Thresholds for Each Channel
  – Programmable Scan Rate
• MicroPOWER™ Monitoring:
  – Four-Channel Scanning:
  – Every 1 ms → 25 μW
  – Every 10 ms → 5 μW
  – < 1 µA of Power-Down Current
  – Programmable Interrupt Pin Controls Shutdown/Wakeup of the Microcontroller
  – Auto Power-Down Control
  – PWRCON Pin Allows Shutdown of External Operational Amplifiers
• Wide Supply Range:
  – Analog Supply: 2.2 V to 5.5 V
  – Digital Supply: 1.65 V to 5.5 V
• Small Footprint: 3-mm × 3-mm WQFN 2 Applications
• Portable and Battery-Powere.