Description
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. An integrated analog-to-digital converter provides a 16-bit data output. Additional integrated features include a field of view limiter structure and an optical filter. The AK9720 enables new applications, including as remote temperature sensing, stationary human detection, and proximity detection.

FEATUREs
● 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
● Linear output correlated to target temperature
● Settings (including ON/OFF control and sampling rate) programmed through I2C bus
● Input level variations can be adjusted through a programmable gain stage
● INT pin goes high when the ADC output is ready to read
   ⇒Can be used as read-trigger for single shot mode, or interrupt of signal level
   monitoring.
● Integrated power-on reset, and oscillator
● 10pin SON Package

APPLICATIONs
● Temperature Sensor
● Human Presence Detection
● Proximity Detection
● Motion Sensor
● etc…