AD534LDZ

Overview

The AD534LDZ is a monolithic, laser-trimmed four-quadrant analog multiplier and divider manufactured by Analog Devices Inc. It operates within a standard supply voltage range of ±15 V and guarantees a maximum multiplication error of ±0.25% 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)/10V] + Z2. Its scale factor is pretrimmed to 10.00 V but can be adjusted via an external resistor to values as low as 3 V. The component utilizes on-chip thin-film resistors and a buried Zener reference to ensure excellent long-term stability and low temperature coefficients.

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 configuration up to X100 via external resistance
• Low noise design optimized for high-quality analog signal processing applications

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 the specific suffix LDZ against official Analog Devices documentation to confirm package type and temperature grade. Confirm current availability status as distribution channels may list discontinued or limited stock items. Ensure the ordering part number matches the required electrical specifications and pinout configuration before finalizing procurement.

Selection Notes

Select this component when high precision and internal trimming are required to eliminate external calibration steps. The fully differential input structure provides flexibility for complex signal processing tasks. Consider the adjustable scale factor for applications requiring variable gain control. Verify that the operating environment aligns with the specified temperature range and power supply requirements.

Part Context

The AD534 series represents a family of internally trimmed precision IC multipliers. The AD534LDZ variant specifically denotes the commercial or extended temperature grade in a dual in-line package. This component belongs to the broader category of linear integrated circuits designed for analog computation and signal manipulation functions.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully. Generic equivalents may not match the internal trimming accuracy or differential input impedance specifications.