ADS7142 - 12-bit 2-ch nanopower SAR ADC with 1.8V operation in 1.5mm x 2mm QFN package

The ADS7142 autonomously monitors signals while optimizing system power, reliability, andperformance. It implements event-triggered interrupts per channel using a digital windowedcomparator with programmable high and low thresholds, hysteresis, and event counter. The deviceincludes a dual-channel analog multiplexer in front of a successive approximation registeranalog-to-digital converter (SAR ADC) followed by an internal data buffer for converting andcapturing data from sensors.

The ADS7142 is available in 10-pin QFN package and consumes only 900 nW of power. Thesmall form-factor and low power consumption make this device suitable for space-constrained and/orbattery-powered applications.

• Standalone, Nanopower Sensor Monitor for
  Cost-sensitive Designs
• Small Package Size: 1.5 mm x 2 mm
• Efficient Host Sleep and Wake-up
  • Autonomous Monitoring at 900 nW
  • Windowed Comparator for Event-triggered Host Wake-up
  • Data Buffering during Host Sleep
• Independent Sensor Configuration and Calibration
  • Dual-Channel, Pseudo-Differential, or Ground-Sense Input Configuration
  • Programmable Thresholds for Calibration
  • Internal Calibration improves Offset and Drift
• False Trigger Prevention
  • Programmable Thresholds per Channel
  • Programmable Hysteresis for Noise Immunity
  • Event Counter for Transient Rejection
• Deep Data Analysis
  • Data Buffer for Fault Diagnostics
  • High Precision Mode for 16-bit Accuracy
  • One-Shot Mode for Fast Data Capture
• I²C™ Interface
  • Compatible from 1.65 V to 3.6 V
  • 8 Configurable Addresses
  • Up to 3.4 MHz (High Speed)
• Wide Operating Range
  • Analog Supply: 1.65 V to 3.6 V
  • Temperature Range: –40°C to 125°C

All trademarks are the property of their respective owners.