AK9723AJ

$5.86

Description：INDUSTRIAL GRADE ASIC FOR GAS DE
Series：-

SKU:75b99cba321c Category: Sensor and Detector Interfaces Brand: Asahi Kasei Microdevices/AKM

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Product introduction

Product Detailed Parameters

Description：INDUSTRIAL GRADE ASIC FOR GAS DE
Series：-
Mfr：Asahi Kasei Microdevices/AKM
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Front End
Input Type：Analog
Output Type：I2C, Serial
Current - Supply：360 µA
Operating Temperature：-40°C ~ 90°C (TA)
Mounting Type：Surface Mount
Package / Case：16-WQFN Exposed Pad
Supplier Device Package：16-QFN (4x4)
Grade：-
Qualification：-

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AK9723AJ

Overview

The AK9723AJ is an integrated IR LED driver and Analog Front End (AFE) IC designed for NDIR gas sensing applications. It features a dual-channel AFE with sigma-delta ADCs for simultaneous digital output of IR photo detector signals from two channels. The device includes a programmable constant current LED driver, an internal temperature sensor, and an I2C interface supporting standard (100kHz) and fast (400kHz) modes. Operating on a single supply voltage between 2.7V and 3.6V, it offers low power consumption in standby and power-down modes. The component is housed in a compact 16-pin QFN package measuring 4.0mm x 4.0mm.

Feature Summary

Integrated LED driver with programmable constant current circuit
Dual channel input AFE with sigma-delta ADCs
I2C bus communication supporting standard and fast modes
Internal interrupt function for data ready indication

Applications

NDIR gas sensors
Infrared photo detector signal processing
Gas concentration measurement systems

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging and tape-and-reel specifications. Confirm that the supplier provides original manufacturer documentation matching the AK9723AJ part number. Check for authenticity markers and lot traceability information required for industrial sensor integration.

Selection Notes

Select this component when designing NDIR gas sensors requiring simultaneous dual-channel IR detection. Ensure the host MCU supports I2C communication at up to 400kHz. Verify that the system power supply remains within the 2.7V to 3.6V range. Consider the 16-pin QFN package dimensions for PCB layout constraints.

Part Context

The AK9723AJ belongs to Asahi Kasei Microdevices' family of sensor interface solutions. It complements other AFEs by providing integrated LED driving capabilities specifically optimized for infrared absorption spectroscopy. This integration reduces external component count compared to discrete LED driver and amplifier combinations.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided datasheet. Evaluate alternative NDIR AFEs based on I2C compatibility, supply voltage range, and package footprint if substitution is required.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.