AD9841JST

Overview

The AD9841JST is a discontinued CCD signal processor and analog front-end (AFE) manufactured by Analog Devices. It has been superseded by the AD9841A variant. The device integrates a single-channel, 10-bit analog-to-digital converter with a sampling rate of 20 MS/s. It operates on a single power supply ranging from 2.7 V to 3.6 V, with typical input voltage at 3 V. Power dissipation is specified at 65 mW. The component utilizes an LQFP-48 surface-mount package and supports serial 3-wire interface communication for configuration.

Feature Summary

• Integrates a 10-bit ADC optimized for CCD signal processing applications
• Provides high-speed data conversion capability up to 20 MS/s
• Features low power consumption suitable for portable imaging systems

Applications

• CCD image sensor signal conditioning
• Video camera signal processing
• Medical imaging equipment

Procurement Notes

This component is officially listed as obsolete or discontinued by the manufacturer. Availability is restricted to secondary market distributors such as Rochester Electronics or Arrow Supply Assurance. Verification of part authenticity and lot traceability is critical when sourcing from non-OEM channels due to the end-of-life status.

Selection Notes

Designers should transition to the AD9841A, which serves as the direct successor to this model. The newer variant maintains functional compatibility while addressing lifecycle management requirements. Review the updated datasheet for any minor parameter shifts or enhanced specifications before finalizing the design.

Part Context

The AD9841 series represents a dedicated class of analog front-ends designed specifically for charge-coupled devices. This specific JST suffix denotes a commercial grade temperature range and LQFP-48 packaging. The product line was integrated into Analog Devices' broader portfolio of video and imaging signal processors.

Replacement Considerations

The AD9841AJSTZ is the confirmed direct replacement part number for the AD9841JST.