AD872ASD/883B

Overview

The AD872ASD/883B is a high-speed, dual sample-and-hold amplifier manufactured by Analog Devices Inc. under the military-grade AD872 series. It features a capture time of 1 microsecond and a bandwidth of 5 MHz, designed for precision analog signal processing in demanding environments. The device operates within a temperature range of -55°C to +125°C and utilizes a ceramic dual in-line package (CDIP-14) suitable for through-hole mounting. This component integrates two independent channels for simultaneous sampling applications.

Feature Summary

• Dual channel architecture providing two independent sample-and-hold amplifiers in a single package
• Fast capture time of 1 microsecond for rapid signal acquisition
• Operational bandwidth of 5 MHz supporting high-frequency data conversion systems
• Military-grade qualification with extended operating temperature range from -55°C to +125°C

Applications

• High-speed analog-to-digital converter front-end conditioning
• Multi-channel data acquisition systems requiring synchronized sampling
• Military and aerospace radar signal processing circuits
• Precision instrumentation requiring low droop rate performance

Procurement Notes

Verify authenticity through authorized Analog Devices distributors or qualified suppliers. Confirm the /883B suffix indicates compliance with MIL-PRF-38534 specifications. Request batch-specific test reports and traceability documentation. Ensure handling procedures meet ESD protection standards for ceramic packages. Validate that the component meets current environmental compliance requirements for defense applications.

Selection Notes

Select this component when dual-channel synchronization is required with sub-microsecond acquisition speeds. Compare against single-channel alternatives if pin count constraints allow separate components. Consider the CDIP-14 package dimensions for PCB layout compatibility. Evaluate power supply requirements against system voltage rails. Verify thermal management capabilities for operation at maximum ambient temperatures up to 125°C.

Part Context

The AD872ASD/883B belongs to the AD872 family of high-performance sample-and-hold amplifiers. The /883B designation signifies screening according to MIL-PRF-38534 Class K or H specifications. This variant offers improved speed and accuracy compared to earlier generations. It serves as a critical interface between analog sensors and digital converters in high-reliability systems.

Replacement Considerations

Direct replacements include other AD872 variants with compatible pinouts and electrical characteristics. Verify that substitute components maintain the same capture time and bandwidth specifications. Check for equivalent military qualification status if operating in regulated environments. Ensure mechanical footprint compatibility with existing CDIP-14 sockets or solder pads.