AD9826KRSZ

Overview

The AD9826KRSZ is a complete analog signal processor for imaging applications, featuring a 3-channel architecture designed to sample and condition outputs of trilinear color CCD arrays. It integrates input clamps, Correlated Double Samplers (CDS), offset DACs, and Programmable Gain Amplifiers (PGA) multiplexed to a high-performance 16-bit A/D converter. The device operates from a single 5 V supply with typical power consumption of 400 mW. Key specifications include a maximum conversion rate of 30 MSPS in 3-channel mode, 16-bit resolution with ±16 LSB INL and ±0.5 LSB DNL, and PGA gain ranging from 1 to 6 V/V. It supports 3 V/5 V digital I/O compatibility and includes an internal voltage reference.

Feature Summary

• Integrates three independent channels with input clamp, CDS, offset DAC, and PGA for precise signal conditioning.
• Features a high-performance 16-bit ADC with multiplexed byte-wide output and optional single-byte mode.
• Supports multiple operating modes including 3-channel, 2-channel, and 1-channel configurations with CDS or Sample-and-Hold functionality.
• Includes a 3-wire serial interface for programming gain, offset, and operational parameters.

Applications

• Flatbed document scanners
• Digital copiers
• Multifunction peripherals
• Infrared imaging applications
• Machine vision systems

Procurement Notes

Verify the specific suffix KRSZ indicates the SSOP-28 package variant when sourcing. Confirm RoHS3 compliance status as per current manufacturer documentation. Check component availability status, as this part may be discontinued or subject to supply limitations. Ensure proper ESD handling precautions are observed during storage and assembly due to the sensitivity of the CMOS circuitry.

Selection Notes

Select this component for applications requiring simultaneous processing of trilinear CCD signals. Consider the 16-bit resolution and programmable gain for high-dynamic-range imaging needs. Evaluate the 3-channel architecture against simpler 1-channel requirements to optimize cost and complexity. Verify that the 5 V analog supply and 3 V/5 V digital logic levels match the system design constraints.

Part Context

The AD9826KRSZ belongs to the AD9826 family of imaging signal processors manufactured by Analog Devices Inc. It is specifically packaged in a 28-lead Small Outline Slim Package (SSOP). This component serves as a bridge between analog CCD sensors and digital processing units, providing essential signal conditioning before digitization.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices for current alternative recommendations if this specific package variant is unavailable.