AD630SE/883B

Overview

The AD630SE/883B is a high-precision balanced modulator and demodulator integrated circuit manufactured by Analog Devices. It operates within a supply voltage range of 5 V to 16.5 V, with a typical operating voltage of 15 V. The device supports frequencies from 0 Hz up to 2 MHz, optimized for applications under 1 kHz but capable of higher frequency operation. It features a ceramic leadless chip carrier package with 20 terminals, designed for military and aerospace environments. The component exhibits a power dissipation rating of 600 mW and functions as a precision signal processing element with low switch distortion.

Feature Summary

• Utilizes a flexible switching architecture with laser-wafer-trimmed thin-film resistors for high accuracy and temperature stability.
• Integrates two independent differential input stages paired with a precision comparator to minimize switch distortion.
• Includes internal application resistor networks enabling precise closed-loop gain configurations without external components.
• Offers programmable frequency compensation and adjustable common-mode and differential offset voltages.

Applications

• Synchronous detection in lock-in amplifiers for extracting weak signals from high noise environments
• Precision fixed-gain amplifier circuits requiring high dynamic range
• Multiplexer applications with configurable gain settings of 1, 2, 3, or 4
• Switched integrator systems demanding fast settling times

Procurement Notes

Verify current availability status directly with the manufacturer or authorized distributors, as this part may be subject to limited supply conditions or specific factory order requirements. Confirm that the ceramic leadless chip carrier package meets mechanical and thermal constraints for the intended assembly process. Ensure compliance with relevant military or aerospace qualification standards if applicable to the end-use environment.

Selection Notes

Select this component when designing systems requiring high-precision modulation or demodulation with minimal distortion. Consider its suitability for low-frequency signal processing where high dynamic range is critical. Evaluate the need for internal resistor trimming benefits versus external calibration requirements. Assess whether the 2 MHz maximum frequency aligns with the system's bandwidth needs.

Part Context

This part belongs to the AD630 series of balanced modulators/demodulators. It is specifically qualified for extended temperature ranges suitable for military and aerospace applications. The SE/883B designation indicates a specific packaging and qualification variant within the broader product family, distinguished by its ceramic construction and enhanced environmental resilience compared to standard commercial variants.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs before considering alternative sources.