AD9637BCPZRL7-80

Analog To Digital Converters (ADC) Overview

The AD9637BCPZRL7-80 is an octal, 12-bit analog-to-digital converter (ADC) operating at sampling rates up to 80 MSPS. It features a single 1.8 V supply and serial LVDS outputs compliant with ANSI-644. Key performance metrics include a signal-to-noise ratio of 71.5 dBFS and a spurious-free dynamic range of 92 dBc at Nyquist. The device integrates an on-chip sample-and-hold circuit and offers scalable power consumption of 60 mW per channel. It utilizes a 64-lead LFCSP package and supports flexible bit orientation, programmable clock alignment, and built-in digital test pattern generation via a serial port interface.

Analog To Digital Converters (ADC) Feature Summary

• Octal architecture integrating eight independent 12-bit ADC channels within a compact footprint.
• Low power consumption of 60 mW per channel at maximum speed with individual channel power-down capabilities.
• Serial LVDS output interface providing data clock and frame clock signals for simplified system synchronization.
• Integrated SPI control enabling programmable clock/data alignment, output resolution adjustment, and custom test patterns.

Analog To Digital Converters (ADC) Applications

• Medical imaging and nondestructive ultrasound systems
• Portable ultrasound and digital beam-forming applications
• Quadrature and diversity radio receivers
• Optical networking equipment
• High-performance test and measurement instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RL7 confirms the reel packaging format required for automated surface-mount assembly processes. Confirm that the -80 designation matches the required 80 MSPS sampling rate specification for the target design. Ensure compatibility with the 64-lead LFCSP thermal pad requirements for proper heat dissipation during operation.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high channel count and low power density are critical constraints. The AD9637 serves as a pin-compatible alternative to the AD9257, allowing for potential upgrades in channel count without redesigning the PCB layout. Evaluate the 650 MHz analog bandwidth against the input signal frequencies to ensure adequate full-power performance across the desired frequency range.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD9637 family of octal ADCs designed for space-constrained, high-performance applications. It shares architectural similarities with other Analog Devices high-speed converters but distinguishes itself through its integrated serial interface and low power profile. The device is specified over the industrial temperature range of −40°C to +85°C.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9257 is a pin-compatible 14-bit octal ADC that may serve as a functional replacement if higher resolution is required without changing the board footprint.

Analog To Digital Converters (ADC) FAQ

What is the default output coding format for the AD9637?

The default output coding format is two's complement.

How does the AD9637 handle clock input compatibility?

The ADC accepts LVPECL, CMOS, or LVDS compatible sample rate clocks for full performance operation.

Is an external voltage reference required for the AD9637?

No external reference is required for many applications as the device includes an internal voltage reference.