AD534SD

Overview

The AD534SD is a monolithic, laser-trimmed four-quadrant analog multiplier and divider manufactured by Analog Devices Inc. It provides high precision with a maximum multiplication error of ±0.25% for the AD534L variant without external trimming. The device features fully differential, high-impedance inputs for X, Y, and Z terminals, supporting the transfer function [(X1–X2)(Y1–Y2)/10 V] + Z2. It includes an on-chip thin-film resistor network and buried Zener reference for long-term stability. The scale factor is pretrimmed to 10.00 V but can be adjusted via an external resistor to values as low as 3 V.

Feature Summary

• Monolithic construction with internal laser trimming for high accuracy
• Fully differential, high-impedance operation on all input terminals
• Adjustable scale factor for flexible gain configuration
• Low noise design suitable for precision signal processing

Applications

• High quality analog signal processing
• Differential ratio and percentage computations
• Algebraic and trigonometric function synthesis
• Wideband, high crest rms-to-dc conversion
• Accurate voltage controlled oscillators and filters

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm specific suffix requirements against current datasheet revisions. Check for space-qualified variants if operating in radiation-hardened environments. Ensure proper handling procedures are followed for sensitive analog components. Validate supply chain documentation for traceability purposes.

Selection Notes

Select this component when high precision multiplication or division is required in a compact form factor. Consider the AD534L grade for guaranteed low error specifications without external calibration. Evaluate the need for differential inputs to simplify circuit design and improve common-mode rejection. Assess power supply requirements and thermal management needs for the intended application environment.

Part Context

The AD534 series represents a family of precision analog multipliers designed for applications requiring high accuracy and stability. The SD suffix typically denotes a specific package or temperature grade variant within the broader AD534 product line. This component bridges the gap between expensive hybrid modules and standard integrated circuits, offering modular performance in a monolithic structure.

Replacement Considerations

Public confirmed substitute part numbers: AD534JHZ, AD534KHZ, AD534TD.