AD534LD

Overview

The AD534LD is a monolithic, laser-trimmed four-quadrant analog multiplier and divider manufactured by Analog Devices Inc. It features a guaranteed maximum multiplication error of ±0.25% without external trimming. The device offers fully differential, high-impedance inputs for X, Y, and Z channels, with a pretrimmed scale factor of 10.00 V adjustable via an external resistor. It incorporates low noise design characteristics, excellent supply rejection, and long-term stability derived from on-chip thin-film resistors and a buried Zener reference.

Feature Summary

• Internally trimmed precision architecture ensuring high accuracy without external calibration
• Fully differential, high-impedance operation on all input terminals including the Z-input
• Adjustable scale factor allowing gain modification through external resistance

Applications

• High-quality analog signal processing
• Differential ratio and percentage computations
• Algebraic and trigonometric function synthesis
• Accurate voltage-controlled oscillators and filters

Procurement Notes

Verify that the specific suffix LD corresponds to the required temperature range and performance grade. Confirm package type and pinout compatibility with existing designs. Ensure sourcing channels provide authentic components from Analog Devices or authorized distributors to maintain specified accuracy and reliability standards.

Selection Notes

Select this component when high-precision analog multiplication or division is required in a monolithic form factor. It is suitable for applications demanding low noise and stable performance over varying conditions. Consider the differential input capability for flexibility in circuit topology and the adjustable scale factor for gain customization.

Part Context

The AD534 series represents a class of internally trimmed precision IC multipliers. The AD534LD variant is part of this lineage, offering military-grade specifications as indicated by space-qualified die options in related documentation. It serves as a cost-effective alternative to hybrid or modular multipliers while maintaining comparable accuracy and stability.

Replacement Considerations

Public confirmed substitute part numbers include AD534JDZ, AD534KHZ, and AD534SD/883B. Verify electrical parameters and package compatibility before substitution.