Programmable Nanopower Dual-Channel Sensor Monitor 'ADS7142'
A standalone Nanopower sensor monitor ideal for designs with strict cost constraints. It autonomously monitors signals while optimizing the system's power, reliability, and performance. Using a comparator with a digital window, it implements event-triggered interrupts for each channel, allowing programming of high/low thresholds, hysteresis, and event counters. It features a dual-channel analog multiplexer in front of a successive approximation register ADC, and an internal data buffer for converting and capturing data from the sensor. The ADS7142 is supplied in a 10-pin QFN package measuring 1.5mm x 2mm. With a power consumption of only 900nW and a small size, it is ideal for applications with strict space constraints and battery-powered applications.
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basic information
■ High efficiency host sleep and wake-up * Autonomous monitoring at 900nW * Windowed comparator for host wake-up triggered by events * Data buffering during host sleep ■ Independent sensor configuration and calibration * Dual-channel, pseudo-differential, or ground detection input configuration * Programmable calibration threshold * Improved offset and drift coefficients through internal calibration ■ Prevention of false triggers * Programmable thresholds for each channel * Programmable hysteresis for noise immunity * Event counter for transient removal ■ 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 1.65V to 3.6V * Eight configurable addresses * Up to 3.4MHz (High Speed) ■ Wide operating range * Analog supply: 1.65V to 3.6V * Temperature range: -40°C to +125°C
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Applications/Examples of results
IoT sensors and nodes, gas/heat/PIR motion/smoke detectors, preventive maintenance for industrial equipment, wearable electronics, zero-cross detection for fault indicators, etc.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
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