AD9253BCPZ-80

Overview

The AD9253BCPZ-80 is a quad-channel, 14-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 80 MSPS. It features a single 1.8 V power supply and an on-chip sample-and-hold circuit. The device provides serial LVDS outputs with a data clock output (DCO) and frame clock output (FCO). Key electrical specifications include a typical signal-to-noise ratio (SNR) of 75.4 dB at 9.7 MHz input frequency, a spurious-free dynamic range (SFDR) of 98 dBc, and a full-power analog bandwidth of 650 MHz. Total power consumption is typically 349 mW in ANSI-644 mode. It operates within an industrial temperature range of −40°C to +85°C.

Feature Summary

• Quad-channel architecture integrating four independent 14-bit ADCs in a compact package.
• Low power consumption with scalable options and individual channel power-down modes.
• Integrated digital test pattern generation supporting built-in and user-defined patterns via SPI.
• Flexible bit orientation and programmable output resolution for system optimization.

Applications

• Medical ultrasound imaging systems
• High-speed data acquisition and imaging
• Quadrature and diversity radio receivers
• General-purpose test equipment

Procurement Notes

Verify the specific suffix 'BCPZ-80' against the manufacturer's current ordering guide to confirm the 80 MSPS speed grade and RoHS-compliant LFCSP-48 packaging. Ensure compatibility with the required 1.8 V supply voltage and LVDS interface standards before finalizing procurement.

Selection Notes

Select this component when a high-density, low-power solution for multi-channel signal processing is required. The 80 MSPS speed grade offers a balance between performance and power dissipation compared to higher-speed variants. Consider the internal reference and bias circuits if minimizing external component count is a priority.

Part Context

This part belongs to the AD9253 family of quad-channel ADCs, which also includes variants rated for 105 MSPS and 125 MSPS. All variants share the same pinout and functional block diagram, allowing for pin-compatible upgrades or downgrades depending on the system's bandwidth requirements.

Replacement Considerations

The AD9633 is a pin-compatible alternative offering 12-bit resolution. Other family members like the AD9253BCPZ-105 or AD9253BCPZ-125 provide higher sampling rates but may require adjustments to power and thermal management strategies.

FAQ

What is the default digital output coding format?

The default output coding format is two's complement.

How is the analog input common-mode voltage established?

The device includes an on-chip common-mode voltage reference available at the VCM pin, which should be decoupled to ground to set the input common-mode level.

Does the AD9253 require an external voltage reference?

No, the AD9253 includes an internal voltage reference, eliminating the need for external reference components in many applications.