The AD9273BSVZ-40 is a high-performance, octal-channel, baseband, ultrasound receiver designed by Analog Devices Inc. to cater to the demanding requirements of modern medical ultrasound imaging systems. With its integration of eight channels of low noise preamplifier (LNA), variable gain amplifier (VGA), anti-aliasing filter (AAF), and a 14-bit, 40 MSPS analog-to-digital converter (ADC) in a single chip, it simplifies system design and conserves board space.

The device operates at a 40 MHz sampling rate, which allows for high-resolution imaging. The LNA has a low noise figure and provides a 21 dB gain, ensuring that the received signals are amplified with minimal added noise. The VGA, with a continuously adjustable gain range of 7.5 dB to 21.5 dB, allows for fine-tuning of the signal level before digitization, adapting to various signal conditions.

A key feature of the AD9273BSVZ-40 is its on-chip AAF, which is designed to reduce the sampling rate requirements by filtering out unwanted high-frequency noise and signals before they reach the ADC. This results in cleaner data and more precise imaging. The ADC itself offers excellent dynamic performance with a 14-bit resolution, capturing the nuances of the received ultrasound signals.

The compact 100-lead TQFP SVZ package ensures that the AD9273BSVZ-40 can be integrated into systems where space is at a premium without sacrificing performance. It is designed to work with a 1.8 V supply for the ADC and digital interface, while the analog supply operates at 3.3 V, accommodating the mixed-signal nature of ultrasound systems.

In addition to its use in medical ultrasound, the AD9273BSVZ-40 is also suitable for non-destructive testing equipment and other applications that require multi-channel data acquisition with high fidelity. The integration of multiple functions into one chip not only reduces system complexity but also enhances reliability and performance, making the AD9273BSVZ-40 a smart choice for advanced ultrasound system design.

Key Features:

• 8 channels of LNA, VGA, AAF, and ADC
• 14-bit resolution at 40 MSPS
• Low noise preamplifier
• Variable gain range: 7.5 dB to 21.5 dB
• Integrated anti-aliasing filter
• Compact 100-lead TQFP package
• Dual supply operation: 1.8 V & 3.3 V