ADSP-1081ASD

Overview

The ADSP-1081ASD is an 8-bit digital signal processing peripheral manufactured by Analog Devices Inc. It functions as an 8x8 CMOS multiplier designed for high-speed multiplication operations. The component utilizes a ceramic dual in-line package with side brazed hermetic sealing, specifically identified as CDIP28 or DIP-28 configuration. It features an external data bus width of 8 bits and an output data bus width of 16 bits. The device operates within a military-grade temperature range from -55 °C to 125 °C. It is classified under DSP peripherals and is suitable for applications requiring robust digital arithmetic capabilities.

Feature Summary

• Performs high-speed 8x8 multiplication operations using CMOS technology
• Features hermetically sealed ceramic packaging with side brazed construction
• Supports 8-bit external data input and 16-bit output data processing

Applications

• Digital signal processing systems requiring dedicated hardware multipliers
• High-speed numeric processing applications
• Military and aerospace electronic equipment demanding hermetic sealing

Procurement Notes

Verify the specific suffix designation when ordering, as variants such as ADSP-1081ASD/883B exist with different pin counts like 40-CDIP. Confirm package type compatibility with your PCB footprint, as the standard ASD model uses a 28-pin DIP while other variants may differ. Ensure environmental specifications meet your operational temperature requirements of -55 °C to 125 °C. Cross-reference datasheets to confirm electrical parameters match your system design constraints before finalizing procurement.

Selection Notes

Select this component when a dedicated hardware multiplier is required for real-time digital signal processing tasks. The hermetic ceramic package makes it suitable for harsh environments where standard plastic packages would fail. Consider the 8x8 bit architecture for fixed-point arithmetic needs. Evaluate the 28-pin DIP form factor against available board space. Compare performance metrics against general-purpose processors if complex instruction sets are not required.

Part Context

This part belongs to the Analog Devices DSP peripheral family, focusing on specialized arithmetic functions rather than full microcontroller integration. It complements broader DSP solutions by providing fast, dedicated multiplication capabilities. The product line emphasizes reliability through hermetic sealing options for critical applications. Understanding its role as a peripheral helps in designing efficient signal processing architectures that offload heavy mathematical computations from main processors.

Replacement Considerations

The ADSP-1081ASD/883B is a documented variant but differs significantly with a 40-pin CDIP package instead of the 28-pin DIP. Verify pinout compatibility before substitution. No direct functional equivalents are listed in the provided documentation. Check for updated series components from Analog Devices that offer similar multiplication speeds with modern packaging technologies.