AD534LH

Overview

The AD534LH is a monolithic, laser-trimmed four-quadrant analog multiplier and divider manufactured by Analog Devices Inc. It operates within a supply voltage range of ±10 V to ±18 V and supports an operating temperature range from -55 °C to +125 °C. The device guarantees a maximum multiplication error of ±0.25% without external trimming. It features fully differential, high-impedance inputs for X, Y, and Z terminals. The internal scale factor is pretrimmed to 10.00 V but can be adjusted externally down to 3 V using a single resistor.

Feature Summary

• Internally trimmed precision architecture ensuring high accuracy with minimal external calibration requirements
• Fully differential, high-impedance input configuration on all terminals including the Z-input for enhanced flexibility
• Adjustable scale factor allowing gain modification via external resistance while maintaining standard reference values

Applications

• High-quality analog signal processing systems
• Differential ratio and percentage computations
• Algebraic and trigonometric function synthesis circuits
• Wideband, high-crest factor RMS-to-DC conversion
• Accurate voltage-controlled oscillators and filters

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm specific suffix designations match required military or industrial grade specifications. Check current lifecycle status as older precision components may have limited production runs. Ensure environmental compliance documentation aligns with project requirements before finalizing procurement orders.

Selection Notes

Select this component when high-precision four-quadrant multiplication is required in a monolithic form factor. Consider the adjustable scale factor feature if system gain needs vary across applications. Evaluate the wide operating temperature range for harsh environment deployments. Compare against hybrid alternatives where similar accuracy was previously necessary to assess cost-performance benefits.

Part Context

The AD534 series represents a class of internally trimmed precision IC multipliers designed to replace expensive hybrid modules. The AD534LH specifically denotes the leaded package variant suitable for through-hole mounting. This family utilizes buried Zener references and thin-film resistors to maintain long-term stability and low temperature coefficients under adverse conditions.

Replacement Considerations

Public confirmed substitute part numbers include AD534JHZ and AD534KHZ. Verify pin compatibility and electrical parameter alignment before substitution. Different suffixes may indicate variations in package type or temperature rating rather than functional changes.