AD534KD

Overview

The AD534KD is a monolithic, laser-trimmed four-quadrant analog multiplier and divider manufactured by Analog Devices Inc. It features fully differential, high-impedance inputs for X, Y, and Z channels, ensuring flexibility in signal processing applications. The device includes an internal thin-film resistor network and buried Zener reference for long-term stability and low temperature coefficients. A pretrimmed scale factor of 10.00 V allows for external adjustment down to 3 V via a single resistor. Designed for precision operations, it guarantees a maximum multiplication error of ±0.25% without external trimming.

Feature Summary

• Monolithic construction with laser-trimmed accuracy eliminating the need for external calibration
• Fully differential, high-impedance inputs on all channels including the Z-input
• Internal thin-film resistors and buried Zener reference for superior stability
• Adjustable scale factor allowing gain configuration from standard 10 V down to 3 V

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 the specific suffix 'KD' against the official Analog Devices datasheet to confirm package type, temperature range, and qualification status. Ensure the ordering information matches the current revision of the specification document. Confirm availability through authorized distributors as component status may vary. Cross-reference part markings with manufacturer documentation to prevent counterfeit substitution.

Selection Notes

Select the AD534KD when high precision and stability are required for analog computation tasks. Its fully differential input architecture simplifies circuit design by accommodating various source impedances. The adjustable scale factor provides versatility for different gain requirements. Consider the device's noise specifications and supply rejection characteristics for sensitive measurement applications requiring minimal external trimming.

Part Context

The AD534 series represents a class of precision analog multipliers designed to replace expensive hybrid or modular solutions. It integrates critical components such as references and resistors onto a single silicon die. This integration reduces size and cost while maintaining performance levels previously unattainable in monolithic forms. The family supports complex mathematical operations essential for advanced instrumentation and control systems.

FAQ

How is the scale factor adjusted?

The scale factor is pretrimmed to 10.00 V but can be reduced to values as low as 3 V by connecting an external resistor.

What is the guaranteed multiplication error?

The AD534L variant guarantees a maximum multiplication error of ±0.25% without any external trimming.