Overview
The ADS7142IRUGT, produced by Texas Instruments, is a 12-bit, 140-kSPS, dual-channel nanopower successive approximation register (SAR) analog-to-digital converter (ADC). This device is designed for autonomous signal monitoring, optimizing system power, reliability, and performance. It features a small 1.5 mm x 2 mm QFN package and consumes only 900 nW of power, making it ideal for space-constrained and battery-powered applications. The ADS7142 includes a dual-channel analog multiplexer, a SAR ADC, and an internal data buffer for efficient data conversion and capture from sensors.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Sampling Rate | 140 kSPS |
| Number of Channels | 2 |
| Package Type | 10-pin QFN (X2QFN) |
| Package Size | 1.5 mm x 2 mm |
| Power Consumption | 900 nW |
| Analog Supply Voltage | 1.65 V to 3.6 V |
| Digital I/O Supply Voltage | 1.65 V to 3.6 V |
| Operating Temperature Range | -40°C to 125°C |
| I2C Interface Speed | Up to 3.4 MHz (High Speed) |
Key Features
- Autonomous monitoring with event-triggered interrupts per channel using a digital windowed comparator with programmable high and low thresholds, hysteresis, and event counter.
- Small package size and low power consumption suitable for space-constrained and battery-powered applications.
- Dual-channel analog multiplexer and SAR ADC with internal data buffer.
- Efficient host sleep and wake-up capabilities.
- Independent sensor configuration and calibration.
- Programmable thresholds for calibration and noise immunity.
- False trigger prevention and event counter for transient rejection.
- High precision mode for 16-bit accuracy and one-shot mode for fast data capture.
- I2C interface with up to 3.4 MHz speed and 8 configurable addresses.
Applications
- PIR motion and smoke detectors.
- Preventive maintenance for elevators, escalators, HVAC, and industrial equipment.
- Wearable electronics.
- Zero cross detection for fault indicators.
- Supervisory functions.
- Sensors for deep learning and artificial intelligence.
Q & A
- What is the resolution of the ADS7142IRUGT?
The ADS7142IRUGT has a resolution of 12 bits. - How many channels does the ADS7142IRUGT support?
The device supports 2 channels. - What is the power consumption of the ADS7142IRUGT?
The power consumption is 900 nW. - What is the operating temperature range of the ADS7142IRUGT?
The operating temperature range is -40°C to 125°C. - What type of interface does the ADS7142IRUGT use?
The device uses an I2C interface with up to 3.4 MHz speed. - What are the key features of the ADS7142IRUGT's comparator?
The comparator is a digital windowed comparator with programmable high and low thresholds, hysteresis, and an event counter. - Is the ADS7142IRUGT suitable for battery-powered applications?
Yes, it is suitable due to its low power consumption and small form factor. - What are some common applications of the ADS7142IRUGT?
Common applications include PIR motion and smoke detectors, preventive maintenance for various equipment, wearable electronics, and supervisory functions. - How does the ADS7142IRUGT handle host sleep and wake-up?
The device features efficient host sleep and wake-up capabilities. - Does the ADS7142IRUGT support high precision mode?
Yes, it supports high precision mode for 16-bit accuracy.
