ADS7142-Q1 - Automotive 12-bit 140kSPS 2-channel nanopower SAR ADC with 1.8V operation

The ADS7142-Q1 is 12-bit, 140-kSPS successive-approximation register (SAR)analog-to-digital converter (ADC) that can autonomously monitor signals while maximizing systempower, reliability, and performance. The device implements event-triggered interrupts per channelusing a digital window comparator with programmable high and low thresholds, hysteresis, and eventcounter. The device includes a dual-channel analog multiplexer in front of a SAR ADC followed by aninternal data buffer for converting and capturing data from sensors.

The ADS7142-Q1 is available in a 10-pin WSON package and can achieve low powerconsumption of only 900 nW. The small form-factor and low-power consumption make this devicesuitable for space-constrained applications.

• AEC-Q100 Qualified for Automotive Applications:
  • Device Temperature Grade 1:
    –40°C to 125°C, T_A
• Small Package Size: 3 mm × 2 mm
• 12-Bit Noise-Free Resolution
• Up to 140-kSPS Sampling Rate
• Efficient Host Sleep and Wake-Up:
  • Autonomous Monitoring at 900 nW
  • Windowed Comparator for Event-Triggered Host Wake-Up
• Independent 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
• I²C Interface:
  • Compatible From 1.65 V to 3.6 V
  • 8 Configurable Addresses
  • Up to 3.4 MHz (High Speed)
• Analog Supply: 1.65 V to 3.6 V

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