AK9233NK

Analog To Digital Converters (ADC) Overview

The AK9233NK is a dual-channel, 16-bit Successive Approximation Register (SAR) Analog-to-Digital Converter manufactured by Asahi Kasei Microdevices. It integrates two independent SAR ADCs within a single 24-pin QFN package measuring 4x4 mm. The device operates with analog and digital supply voltages ranging from 1.7V to 2.0V. It supports differential inputs and achieves a sampling rate of 1.1 MSPS per channel. Key internal features include an integrated oscillator and support for both external and internal reference configurations. The component is rated for industrial operating temperatures between -40°C and +105°C.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel 16-bit SAR architecture with 1.1 MSPS sampling rate
• Integrated internal oscillator eliminates need for external clock source
• Low voltage operation: 1.7V to 2.0V for both analog and digital supplies
• Compact 24-WFQFN (4x4 mm) surface-mount package with exposed pad

Analog To Digital Converters (ADC) Applications

• Portable medical instrumentation requiring low power consumption
• Industrial data acquisition systems with differential input requirements
• Battery-powered sensor interfaces
• High-resolution signal conditioning circuits

Analog To Digital Converters (ADC) Procurement Notes

The AK9233NK has been officially declared End-of-Life (EOL) by the manufacturer as of June 9, 2021. Production has ceased, and no new stock will be replenished after existing inventory is exhausted. Designers must verify current availability through authorized distributors and prepare for obsolescence management strategies immediately.

Analog To Digital Converters (ADC) Selection Notes

Select this component only if a dual-channel 16-bit SAR ADC with sub-2V operation is required. Verify that the system can accommodate the 1.7V–2.0V supply range. Note that the part is discontinued; alternative solutions should be evaluated for long-term supply chain stability. Ensure the application fits the 24-QFN footprint constraints.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AK9233 family of high-speed, low-power ADCs from Asahi Kasei Microdevices. It shares architectural similarities with other members in the series but is distinct in its specific pinout and packaging configuration. The device was designed to bridge the gap between resolution and speed for portable applications before being superseded by newer generations.

Analog To Digital Converters (ADC) Replacement Considerations

As the part is EOL, direct substitutes are not guaranteed. Engineers should consult the manufacturer's PCN documents or contact sales for recommended cross-reference parts. No public substitute part numbers are confirmed in available documentation.