AD8332ACP-REEL7

Overview

The AD8332ACP-REEL7 is a dual-channel, ultralow noise linear-in-dB variable gain amplifier (VGA) from Analog Devices. It integrates an ultralow noise preamplifier with a 19 dB fixed gain and an X-AMP VGA providing a 48 dB range. The device operates on a single 5 V supply and features a selectable postamplifier gain of 3.5 dB or 15.5 dB. Key electrical parameters include a 100 MHz bandwidth, 650 V/µs slew rate, and 0.82 nV/√Hz input voltage noise. It supports programmable input impedance matching via a single resistor.

Feature Summary

• Integrates an ultralow noise preamplifier with an X-AMP variable gain amplifier for high-fidelity signal processing.
• Features active input impedance matching capability to optimize source coupling without compromising noise performance.
• Includes a selectable postamplifier stage with adjustable output limiting to prevent overload in subsequent stages.

Applications

• Ultrasound and sonar time-gain controls
• High performance automatic gain control systems
• I/Q signal processing
• High speed, dual ADC drivers

Procurement Notes

Verify the specific package type against the ordering suffix, as the AD8332 is available in both TSSOP and LFCSP packages. Confirm that the REEL7 suffix corresponds to the required tape and reel packaging format for automated assembly processes. Ensure compatibility with the intended operating temperature range of -40°C to +85°C.

Selection Notes

Select this component when ultralow noise performance is critical for driving high-speed analog-to-digital converters. The dual-channel architecture allows for cost-effective implementation in differential signal paths. Consider the available gain modes and output clamping options to match the dynamic range requirements of the application.

Part Context

This part belongs to the AD8331/AD8332/AD8334 family of ultralow noise VGAs. While the AD8331 offers single-channel configuration and the AD8334 provides quad channels, the AD8332 specifically delivers dual-channel performance. All variants share similar core specifications regarding noise figures and bandwidth capabilities.

Replacement Considerations

Direct functional substitutes within the same family include the AD8331 for single-channel applications and the AD8334 for quad-channel requirements. Verify pinout compatibility if replacing across different package types such as TSSOP versus LFCSP.