HI1-674ASD/883

Analog To Digital Converters (ADC) Overview

The HI1-674ASD/883 is a high-speed monolithic analog-to-digital converter manufactured by Harris Corporation, processed in accordance with MIL-STD-883 standards. This device utilizes a 12-bit successive approximation register (SAR) architecture to achieve a sampling rate of 1 MHz. It features an internal reference voltage and operates on a single +5V supply, consuming 300 mW of power. The component is housed in a 28-pin ceramic flatpack package and supports parallel digital output interfaces. Designed for harsh environments, it maintains operation across a military temperature range of -55°C to +125°C with specified integral nonlinearity of ±1 LSB.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 1 MHz sampling rate using SAR architecture
• Internal reference voltage eliminates external components
• Single +5V power supply operation with 300 mW power dissipation
• MIL-STD-883 qualified for extended temperature range (-55°C to +125°C)

Analog To Digital Converters (ADC) Applications

• Military radar signal processing systems
• Electronic warfare instrumentation
• High-speed data acquisition modules

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'ASD' against the official Harris datasheet to confirm pinout compatibility and electrical tolerances. Ensure the component meets current MIL-STD-883 qualification requirements for the intended application environment. Cross-reference manufacturing lot dates as this part may be sourced from legacy inventory or authorized distributors specializing in defense-grade electronics.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 12-bit resolution at 1 MHz is required within a single +5V supply constraint. The internal reference simplifies board layout compared to external reference designs. Consider the 28-pin ceramic flatpack footprint during PCB design. Verify that the parallel interface timing aligns with the host processor's clock capabilities.

Analog To Digital Converters (ADC) Part Context

This part belongs to the HI1-674 series of high-speed ADCs produced by Harris Semiconductor before its acquisition by Intersil and subsequently Renesas Electronics. The '/883' suffix indicates compliance with MIL-STD-883 testing standards for microelectronics. The HI1-674 series was widely used in aerospace and defense applications requiring reliable high-speed conversion.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate modern equivalents from manufacturers such as Analog Devices or Texas Instruments offering similar 12-bit, 1 MSPS specifications with MIL-STD-883 qualification if direct replacement is necessary.