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ADS7142/-Q1 Successive-Approximation Register (SAR) ADCs
Texas Instruments' SAR ADCs are ideal for applications such as wearables and IoT
Texas Instruments’ ADS7142/-Q1 12-bit, 140-kSPS SAR ADCs can autonomously monitor signals while maximizing system power, reliability, and performance. The automotive version ADS7142-Q1 is I2C-compatible with programmable threshold and host wake-up. These ADCs implement event-triggered interrupts per channel using a digital windowed comparator with programmable high and low thresholds, hysteresis, and event counter.
These devices include 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 ADCs are available in a 10-pin QFN package and consume 900 nW of power. The small form-factor and low power consumption make these devices suitable for space-constrained and battery-powered applications.
- 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
- Standalone, nanopower sensor monitor for cost-sensitive designs
- Small package size: 1.5 mm x 2 mm
- Deep data analysis
- Data buffer for false 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
- Eight 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
- Sensor nodes for Internet of Things (IoT)
- Gas, heat, PIR motion, and smoke detectors
- Preventive maintenance for elevators, escalators, HVAC, industrial equipment, and so forth
- Wearable electronics
- Zero cross detection for fault indicators
- Supervisory functions
- Comparator with programmable reference
- Sensors for deep learning artificial intelligence
ADS7142 SAR ADC
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | ADS7142IRUGT | IC ADC 12BIT SAR 10X2QFN | 1134 - Immediate | $4.67 | View Details |
| | ADS7142IRUGR | IC ADC 12BIT SAR 10X2QFN | 16903 - Immediate | $3.97 | View Details |
Evaluation Board
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | BOOSTXL-ADS7142-Q1 | BOOSTXL-ADS7142-Q1 | 10 - Immediate | $276.89 | View Details |
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