AK9255ANK

Analog To Digital Converters (ADC) Overview

The AK9255ANK is a dual-channel, 16-bit Analog-to-Digital Converter (ADC) from Asahi Kasei Microdevices. It utilizes Zero latency Delta Sigma with Noise Suppression (ZDS-NS) architecture to achieve a sampling rate of 0.54 MSPS. The device features simultaneous sampling for two differential or pseudo-differential inputs, ensuring precise data acquisition. Operating on a single 3.0V to 3.6V supply, it delivers an 86 dBFS signal-to-noise ratio in standard noise suppression mode and ±3.0 LSB typical INL. Designed for industrial environments, it functions within a temperature range of -40°C to 105°C and is housed in a compact 16-pin QFN package measuring 3mm x 3mm.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel ZDS-NS ADC with 16-bit resolution and 0.54 MSPS sampling rate
• Noise suppression function improving system accuracy with built-in digital filtering
• Low power consumption: 2.6 mA typical current at VDD=3.3V
• Compact 16-pin QFN package (3mm x 3mm) with exposed pad

Analog To Digital Converters (ADC) Applications

• Motor control position measurement using SinCos encoders
• Three-phase power controls
• Programmable logic controllers
• Power quality measurement
• Industrial automation systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix 'NK' against official distributor catalogs to confirm packaging type and reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized suppliers prior to procurement. Ensure the component meets all applicable export control regulations and environmental directives relevant to your region before finalizing orders.

Analog To Digital Converters (ADC) Selection Notes

Select the AK9255ANK when simultaneous dual-channel conversion is required for high-speed applications. The ZDS-NS architecture is optimal for systems needing fast response times combined with delta-sigma-like noise averaging. Verify that the input voltage range aligns with the external reference voltage capabilities. Consider the 3.0V to 3.6V supply requirement and ensure the PCB layout accommodates the 16-QFN footprint with appropriate thermal management for the exposed pad.

Analog To Digital Converters (ADC) Part Context

The AK9255A/56A series represents AKM's integration of SAR speed with Delta-Sigma accuracy. The AK9255A variant specifically provides 16-bit resolution, distinguishing it from the 14-bit AK9256A. This family targets industrial analog front-end requirements where noise immunity and channel synchronization are critical for accurate signal processing in automated machinery and power monitoring.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult AKM sales representatives for current availability and potential cross-reference options.