AK9724AE

MP

LED driver built-in AFEICs for NDIR Gas Sensing

LED driver built-in AFEICs for NDIR Gas Sensing

MP

Description

The AK9724AE is an analog front-end IC for IR sensors with a built-in LED driver for infrared emission.
The AK9724AE has a light emitting element (IR - LED) driver with a programmable constant current circuit, which allows optimal control according to the optical path length of the gas sensor. In addition, the signal from the light receiving element (IR sensor) is amplified by a programmable gain amplifier, A / D Converted with 13-bit resolution, and performed via the I²C bus. Each setting can be performed from an external MCU.
By connecting the AK9710AEF01 and AK9700AE of our products, you can easily configure the CO₂ sensor system of the NDIR method.

Key Features

  • It has a built-in LED driver.
    The light emitting device (IR - LED) driver can be controlled according to the optical path length of the gas sensor with a programmable constant current circuit.

Applications

  •                                 Measurement of gas concentration in a room or in a closed chamber
                                

Specifications

Part Number
AK9724AE
LED Drive Current [mA]
28 - 121 Programmable (3mA Step)
ADC Resolution [bit]
13
Power Supply Voltage (MIN.) [V]
2.7
Power Supply Voltage (TYP.) [V]

                                
Power Supply Voltage (MAX.) [V]
3.6
Package Size [mm]
3.0 x 3.0 x 0.7
Other

                                
Operating Temperature [℃]
-40 to 90
Device Package
HWQFN
Number of Pins
16

Product Information

Part Status
MP
Pb Free
Yes
Halogen Free
Yes
MSL
MSL1
Packaging
TAPE
JEDEC Standard Packaging
Compliant
Minimum Order Quantity [pcs.]
1000
Replacement P/N

                                

Block Diagram

Block Diagram