Analog Devices Inc. AD9228-65EBZ

Overview

AD9228-65EBZ from Analog Devices is a quad-channel, 12-bit, 65 MSPS serial LVDS analog-to-digital converter optimized for medical ultrasound beamforming and quadrature radio receivers. It delivers 70 dB SNR, 82 dBc SFDR, and 11.3-bit ENOB at Nyquist with 315 MHz full-power analog bandwidth, operating from a single 1.8 V supply.

For engineers reviewing the AD9228-65EBZ datasheet, AD9228-65EBZ pinout, AD9228-65EBZ application, or AD9228-65EBZ equivalent, this evaluation board enables rapid validation of high-speed serial LVDS ADC performance in portable ultrasound, diversity radio, optical networking, and test equipment signal chains requiring precise timing alignment and low-power multichannel digitization.

Technical Context

The AD9228-65EBZ implements four independent pipeline ADC cores sharing a common 1.8 V AVDD/DRVDD supply and LVDS serial output interface compliant with ANSI-644. Each channel supports programmable clock/data alignment, flexible bit orientation (MSB/LSB first), and built-in deterministic/pseudorandom digital test pattern generation via SPI.

It features dual clock outputs-DCO± for DDR data capture at up to 390 MHz and FCO± for frame synchronization-and supports individual channel power-down (<2 mW total) and standby mode (72 mW). The on-chip 1.0 V reference is internally buffered and configurable via REFT/REFB/SENSE pins.

Key Specifications

Availability

AD9228-65EBZ is available at Aetrix Electronics and suitable for medical imaging systems, portable ultrasound equipment, quadrature radio receivers, and optical network test instrumentation requiring stable component supply and validated high-speed ADC evaluation capability.

Supply support for AD9228-65EBZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The AD9228 product line delivers multichannel, high-speed ADCs for demanding signal acquisition applications including medical ultrasound, communications infrastructure, and automated test equipment where space, power, and dynamic performance are critical.

FAQ

What is the primary function of the AD9228-65EBZ evaluation board?

The AD9228-65EBZ is an evaluation board designed to demonstrate and validate the performance of the AD9228-65EBZ quad 12-bit 65 MSPS serial LVDS ADC. It provides standardized analog input interfaces, configurable clocking, SPI control access, and LVDS output termination to enable system-level testing without custom hardware development.

Does the AD9228-65EBZ support both 40 MSPS and 65 MSPS operation?

No - the AD9228-65EBZ is specifically configured and characterized for the AD9228-65 variant, which is rated for up to 65 MSPS. While the underlying AD9228 silicon family includes a 40 MSPS version (AD9228-40), the AD9228-65EBZ board is optimized for 65 MSPS operation with matching layout, power delivery, and timing margins.

What clock sources are compatible with the AD9228-65EBZ?

The AD9228-65EBZ accepts LVDS, LVPECL, or CMOS clock inputs on CLK± pins. The board supports external SMA-connected clocks and includes on-board crystal oscillator options. Clock frequency must be between 10 MSPS and 65 MSPS, with pulse width specifications of ≥7.7 ns high/low time at 65 MSPS.

How is digital output data formatted on the AD9228-65EBZ?

The AD9228-65EBZ outputs serialized 12-bit data per channel using ANSI-644 LVDS signaling. Data is transmitted MSB-first by default, with DCO± providing double-data-rate strobing and FCO± marking byte boundaries. Output coding is offset binary, and resolution can be programmed down to 10 bits via SPI.

Can the AD9228-65EBZ operate with a single 1.8 V supply?

Yes - the AD9228-65EBZ evaluation board is designed to operate from a single 1.8 V supply for both analog (AVDD) and digital output driver (DRVDD) domains. The board includes filtering and decoupling appropriate for low-noise 1.8 V operation, and all specified performance metrics assume 1.8 V ±5% supply conditions.