AD835AR-REEL

Overview

The AD835AR-REEL is a four-quadrant, voltage output analog multiplier fabricated on an advanced dielectrically isolated complementary bipolar process. It provides the linear product of X and Y voltage inputs with a -3 dB output bandwidth of 250 MHz and a small signal rise time of 1 ns. Full-scale (-1 V to +1 V) rise/fall times are 2.5 ns, settling to 0.1% in 20 ns. The device operates from ±4.5 V to ±5.5 V supplies, drawing 16 mA typical quiescent current. Inputs feature high differential impedance (100 kΩ||2 pF), while the low impedance output drives loads as low as 25 Ω with swings up to ±2.5 V.

Feature Summary

• Provides complete four-quadrant multiplication with minimal external components required for operation.
• Features very fast dynamic response with a 250 MHz bandwidth and 20 ns settling time.
• Includes a dedicated summing input (Z) allowing independent ground references and voltage gain adjustment.
• Delivers low multiplier noise density of 50 nV/√Hz for high-fidelity signal processing.

Applications

• Very fast multiplication, division, and squaring operations
• Wideband modulation and demodulation circuits
• Phase detection and measurement systems
• Sinusoidal frequency doubling applications

Procurement Notes

Verify that the ordering suffix corresponds to the standard tape and reel packaging format intended for automated assembly processes. Confirm the specific revision level matches the design requirements, as Analog Devices may update documentation or internal specifications without changing the primary part number. Ensure the procurement channel sources units compliant with the RoHS directive indicated by the Z suffix if environmental regulations apply to the final assembly.

Selection Notes

Select this component when high-speed analog multiplication is required within a compact surface-mount footprint. The SOIC package offers thermal characteristics suitable for industrial temperature ranges. Consider the Z input versatility for applications needing simultaneous signal addition or gain control. Verify that the supply voltage range aligns with the system's power architecture and that load driving capabilities meet the downstream circuit impedance requirements.

Part Context

This part belongs to the AD835 family of monolithic analog multipliers manufactured by Analog Devices Inc. It utilizes a complementary bipolar process optimized for speed and low noise. The device is designed to replace hybrid solutions, offering state-of-the-art performance in a single integrated circuit form factor suitable for wideband signal processing tasks.

Replacement Considerations

The AD835ARZ serves as the RoHS-compliant equivalent of the AD835AR. Both share identical electrical specifications and pinouts. Verify that any substitute maintains the 250 MHz bandwidth and four-quadrant functionality required for the specific application circuit.