AK9242NK

Analog To Digital Converters (ADC) Overview

The AK9242NK is an industrial analog front-end integrated circuit manufactured by Asahi Kasei Microdevices/AKM. It features a dual-channel, 16-bit successive approximation register (SAR) analog-to-digital converter with an internal programmable gain amplifier and a built-in voltage reference. The device supports a maximum sampling rate of 0.97MSPS in serial output mode. It operates within a supply voltage range of 2.7V to 5.5V for the main digital/analog power and includes dedicated low-dropout regulators for core logic. The component is housed in a compact 24-pin WQFN package designed for surface-mount assembly.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel 16-bit SAR ADC with integrated programmable gain amplifier
• Maximum conversion rate of 0.97MSPS in serial output mode
• Flexible digital interface allowing up to four wiring reductions via pin shorting
• Integrated LDOs for DRVDD and VREFP-VREFN power domains

Analog To Digital Converters (ADC) Applications

• Industrial process control systems requiring high-precision signal acquisition
• Multi-channel data acquisition systems with space constraints
• Smart sensor interfaces utilizing serial output modes

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific revision status and obsolescence notices directly with Asahi Kasei Microdevices or authorized distributors before finalizing designs. Confirm that the 24-WQFN exposed pad thermal requirements match the target PCB layout capabilities. Ensure all peripheral decoupling capacitors adhere to the recommended 1005 package size specifications outlined in the official application note.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel, high-resolution ADC with integrated amplification is required. Consider the wiring reduction options if system pin counts are limited; specifically, shorting CONVSTN/CSN or SDATO/SDATI can simplify the interface at the cost of specific timing constraints. Verify that the host microcontroller supports the required 3-wire serial protocol and continuous clock input for serial output modes.

Analog To Digital Converters (ADC) Part Context

The AK9242NK belongs to the AK924X series of industrial analog front-ends from Asahi Kasei Microdevices. This family is designed to simplify the design of multi-channel measurement systems by combining ADC, PGA, and reference functions into a single package. The 'NK' suffix typically denotes the specific tape and reel packaging configuration for automated assembly.

Analog To Digital Converters (ADC) Replacement Considerations

Consult the manufacturer's official cross-reference documentation for verified alternative part numbers. No direct public substitutes are listed in the provided source material.