ADS7142-Q1

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

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