AD8335ACPZ-REEL7

Overview

The AD8335ACPZ-REEL7 is a quad variable gain amplifier with integrated low noise preamplifiers, designed for cost and power-sensitive applications. It features fully differential signal paths, active input matching, and individual gain controls per channel. The device operates on a single 5 V supply within an industrial temperature range of −40°C to +85°C. Each channel provides a 48 dB gain range with user-selectable maximum gains of 46 dB or 38 dB via the HLxx pins. The preamplifier offers a fixed gain of ×8 (18.06 dB) and accepts single-ended inputs up to 625 mV p-p. The combined PrA and VGA stage delivers a −3 dB bandwidth of 85 MHz when matched.

Feature Summary

• Integrates low noise preamplifiers with accurate linear-in-dB gain control for each channel
• Features fully differential signal paths with active input matching for optimized signal integrity
• Supports user-selectable high and low gain modes to accommodate varying ADC resolutions
• Allows independent preamplifier shutdown to significantly reduce total power consumption

Applications

• Medical imaging systems including ultrasound and gamma cameras
• Sonar signal processing chains
• Test and measurement instrumentation requiring stable wideband gain control

Procurement Notes

Verify the specific REEL7 tape and reel packaging configuration against your automated assembly requirements. Confirm that the exposed paddle connection on the LFCSP package is properly soldered to the PCB ground plane to ensure thermal dissipation and mechanical stability. Ensure logic levels for enable and gain control pins align with your system voltage rails.

Selection Notes

Select this component when multiple channels of low noise amplification are required in a compact footprint. The device is suitable for designs where power consumption must be minimized by disabling unused preamplifiers. Consider the available gain ranges and the need for precise linear-in-dB control when determining suitability for your specific signal chain architecture.

Part Context

This part belongs to the AD8335 family of quad variable gain amplifiers manufactured by Analog Devices Inc. It is specifically packaged in a 64-lead lead frame chip scale package (LFCSP) measuring 9 mm × 9 mm. The REEL7 suffix indicates it is supplied in a standard tape and reel format suitable for surface mount placement equipment.

Replacement Considerations

Consult official documentation for direct pin-compatible substitutes within the same product family. Verify functional equivalence regarding gain linearity, noise figures, and bandwidth specifications before implementing any alternative components.