AK9720
Overview
The AK9720 is a slim and compact infrared-sensor module composed of a quantum IR sensor and an integrated circuit for characteristic compensation. The IC generates an analog signal that adjusts the infrared sensor’s offset and/or gain fluctuations and temperature characteristics.
- Quantum-type IR sensor: IR1011 Core
- Low voltage operation VDD +1.71 to +3.63V Digital I/F +1.65V to VDD
- Low current consumption： 100uA typ. （@ 330ms sampling period ）
- 16bit-ADC output to I2C bus ⇒Digital output simplifies system integration
- Fast response： TBD ms （@ sampling period）
- Selectable output: temperature compensated signal or bypass signal
- Integrated temperature sensor output
- When the compensated signal is selected, the output has been adjusted for offset/gain variation and temperature sensitivity of IR sensors: => Simplifies heat design => No host processing needed for temperature compensated output
- Stationary human body detection algorithm available as reference software
- Slim, compact package with field of view limiter structure and optical filter ⇒Simplifies optical design
