AD9272BSVZ-40

Overview

The AD9272BSVZ-40 is an octal analog front-end integrated circuit featuring eight independent channels, each comprising a low noise preamplifier (LNA), variable gain amplifier (VGA), antialiasing filter (AAF), and a 12-bit analog-to-digital converter (ADC). Designed for high-performance signal acquisition, it supports sampling rates up to 40 MSPS. The device integrates an 8x8 differential crosspoint switch to facilitate continuous wave Doppler applications. It operates with single-ended inputs and provides fully differential signal paths, optimized for dynamic range and low power consumption in compact packages.

Feature Summary

• Eight-channel architecture with integrated LNA, VGA, AAF, and 12-bit ADC per channel
• Low noise preamplifier with input-referred noise of 0.75 nV/√Hz at 21.3 dB gain
• Programmable second-order antialiasing filter with cutoff frequencies from 8 MHz to 18 MHz
• Integrated 8x8 differential crosspoint switch supporting CW Doppler mode

Applications

• Medical imaging and ultrasound systems
• Automotive radar sensors

Procurement Notes

Verify the specific speed grade suffix (-40) against the required system clock frequency. Confirm that the 100-lead TQFP package dimensions match the PCB footprint requirements. Ensure that the supply voltages (AVDD1 1.8 V, AVDD2 3.0 V, DRVDD 1.8 V) are compatible with the target power rails before procurement.

Selection Notes

Select the AD9272BSVZ-40 when a maximum sampling rate of 40 MSPS is sufficient for the application bandwidth. Consider the -65 or -80 variants if higher throughput is required. Evaluate the power consumption profiles, noting that TGC mode consumes approximately 195 mW per channel at 40 MSPS, while CW Doppler mode reduces this significantly.

Part Context

This component belongs to the AD9272 family of octal analog front ends. The -40 suffix denotes the 40 MSPS speed grade variant, distinct from the -65 and -80 grades which support higher sampling rates. All variants share the same pinout, functional block diagram, and general specifications, differing primarily in their maximum clock rate capabilities.

Replacement Considerations

Direct replacements within the same family include the AD9272BSVZ-65 and AD9272BSVZ-80, which offer higher sampling rates but maintain identical pinouts and functionality.