AD835AR-REEL7

Overview

The AD835AR-REEL7 is a four-quadrant voltage output analog multiplier in an 8-lead SOIC package. It provides a linear product of X and Y inputs with a Z summing input, achieving a typical -3 dB bandwidth of 250 MHz and a settling time to 0.1% of 20 ns. The device operates on ±5 V supplies, drawing 25 mA quiescent current. It features high differential input impedance (100 kΩ||2 pF) and low noise spectral density of 50 nV/√Hz. The output can swing up to ±2.5 V and drive loads as low as 25 Ω.

Feature Summary

• Provides complete four-quadrant multiplication with minimal external components required for operation.
• Features a unique summing input that allows independent ground references and enables voltage gain operation.
• High input impedances ensure negligible signal source loading across all differential inputs.
• Low noise performance achieved through specialized band gap voltage reference optimization.

Applications

• Wideband modulation and demodulation
• Phase detection and measurement
• Sinusoidal frequency doubling
• Video gain control and keying

Procurement Notes

Verify the specific ordering suffix REEL7 corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer's documentation. Ensure the supply voltage requirements align with the specified ±5 V nominal operating range for optimal performance characteristics.

Selection Notes

Select this component when high-speed analog multiplication is required within a compact surface-mount footprint. The device is suitable for applications demanding wide bandwidth and low distortion. Consider the thermal resistance characteristics of the SOIC package for heat dissipation planning. Verify that the input voltage ranges fit within the specified differential limits for the intended signal levels.

Part Context

This part belongs to the AD835 family of monolithic analog multipliers fabricated on a complementary bipolar process. It serves as a high-performance solution for signal processing tasks requiring precise mathematical operations on voltage signals. The series is designed to replace hybrid or board-level solutions with a single integrated circuit.

Replacement Considerations

The AD835ANZ is available in an 8-lead PDIP package. The AD835ARZ is offered in the same SOIC package without the reel suffix. These variants share identical electrical specifications and functionality.

FAQ

How does the Z input function in the AD835?

The Z input acts as a summing terminal that allows an additional signal to be added to the product of the X and Y inputs, enabling versatile configurations such as voltage-controlled amplifiers.

What is the maximum output voltage swing?

The output voltage can swing up to ±2.5 V under standard load conditions, allowing it to drive low impedance loads effectively.