AD652SQ/883B

Overview

The AD652SQ/883B is a monolithic synchronous voltage-to-frequency converter manufactured by Analog Devices Inc. It utilizes an internal phase-locked loop architecture to achieve high linearity and low temperature drift, converting analog input signals into precise pulse frequency outputs. The device supports dual supply operation with a maximum output frequency of 2 MHz. It is housed in a 16-pin ceramic dual in-line package (CDIP) designed for military or aerospace environments.

Feature Summary

• Synchronous voltage-to-frequency conversion using internal phase-locked loop technology
• High linearity performance suitable for precision data acquisition systems
• Robust ceramic packaging designed for harsh environmental conditions

Applications

• Precision sensor signal digitization
• Isolated signal transmission via optical couplers
• Motor speed and position feedback generation

Procurement Notes

Verify the specific /883B suffix requirements against current manufacturer documentation, as this indicates military-grade screening. Confirm availability status through authorized distributors, noting that legacy components may have limited stock or require alternative sourcing strategies due to discontinuation trends.

Selection Notes

Select this component when high linearity and low temperature drift are critical for voltage-to-frequency conversion. Ensure the design accommodates the required ±12V to ±15V dual power supply range. Verify that the 16-pin CDIP footprint matches the target PCB layout and that the 2 MHz output frequency meets system bandwidth requirements.

Part Context

This part belongs to the AD652 family of synchronous voltage-to-frequency converters from Analog Devices. The family is known for its PLL-based architecture which provides superior linearity compared to free-running oscillators. The AD652 series serves as a standard solution for applications requiring accurate analog-to-digital interface without direct ADC usage.

Replacement Considerations

Consult official Analog Devices documentation for verified cross-reference part numbers. Generic replacements may not match the specific military screening or ceramic package requirements associated with the /883B suffix.