AD835ARZ-REEL7

Overview

The AD835ARZ-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 -3 dB bandwidth of 250 MHz and a settling time to 0.1% of 20 ns. The device operates on ±5 V supplies, delivering up to ±2.5 V swing into 150 Ω loads. Input impedance is high at 100 kΩ||2 pF, while the low impedance output drives loads down to 25 Ω. Noise spectral density is 50 nV/√Hz.

Feature Summary

• Provides complete four-quadrant multiplication with minimal external components required for operation.
• Features high differential input impedance across X, Y, and Z terminals to minimize signal source loading.
• Includes a dedicated summing input (Z) that allows independent ground references and enables voltage gain configurations.
• Delivers high output current capability suitable for driving low impedance loads directly.

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 the RoHS compliant status indicated by the Z suffix aligns with environmental regulations applicable to the target manufacturing region. Ensure the 8-lead SOIC footprint matches the design layout constraints.

Selection Notes

Select this component when a wide bandwidth exceeding 200 MHz is necessary for analog signal processing tasks. Consider the integrated Z input for applications requiring simultaneous summation or variable gain adjustment without additional circuitry. Evaluate the power supply requirements against available system rails, as optimal performance is specified at ±5 V.

Part Context

This part belongs to the AD835 family of monolithic multipliers fabricated on a dielectrically isolated complementary bipolar process. It represents a high-speed solution designed to replace earlier discrete or hybrid multiplier implementations. The device integrates a band gap reference optimized for ultralow noise to support precision signal processing applications.

Replacement Considerations

Direct substitutes include AD835ARZ and AD835ARZ-REEL. Verify pin compatibility and thermal resistance specifications when transitioning between different package options within the same functional family.

FAQ

How does the Z input function within the multiplier?

The Z input serves as a summing terminal that allows an external signal to be added to the XY product. This feature also facilitates voltage gain adjustments and provides independent ground references for the output.

What is the maximum output voltage swing?

The device can provide a peak output voltage swing of up to ±2.5 V when driving a standard load of 150 Ω.