[AK9723AJ] AK9723AJLED Driver and Sensor AFE for NDIR Gas Sensing1. General Description The AK9723AJ is the IR LED driver and Analog Front End (AFE) IC for signal processing of IR photo detector. The AK9723AJ has dual channel AFE and an ADC for digital output, and IR photo detector output signals can be obtained at the same time. The AK9723AJ can communicate with HOST MCU through I2C bus. The AK9723AJ is suitable for NDIR gas sensing processing using IR LED and IR photo detector. 2. Features Integrated LED Driver with Programmable Constant Current Circuit Dual Channel Input AFE Interrupt Function Power Supply Voltage Range: 2.7V to 3.6V Small and Thin Package: 16-pin QFN 4.0mm x 4.0mm x t0.7mm 3. Applications NDIR gas sensor 018015111-E-01 2019/8 - 1 -
