Analog Devices Inc. AD9653-125EBZ

Overview

AD9653-125EBZ from Analog Devices is a quad-channel, 16-bit, 125 MSPS serial LVDS analog-to-digital converter (ADC) with on-chip sample-and-hold, 1.8 V single-supply operation, and 650 MHz full-power analog bandwidth. It delivers 76.5 dBFS SNR at 70 MHz input (2.0 V p-p), ±0.7 LSB DNL, and supports medical ultrasound imaging and quadrature radio receiver front ends.

For engineers reviewing the AD9653-125EBZ datasheet, AD9653-125EBZ pinout, AD9653-125EBZ application, or AD9653-125EBZ equivalent, this evaluation board enables functional validation of high-speed ADC timing alignment, multichip synchronization, LVDS serial output configuration, and SPI-controlled digital test pattern generation in real-world signal acquisition systems.

Technical Context

The AD9653-125EBZ implements four parallel pipeline ADC cores sharing clock management, serial LVDS serializers, and a unified SPI interface. Each channel operates at up to 125 MSPS with programmable output clock/data alignment, DDR/SDR selectable data format, and configurable frame clock (FCO) and data clock (DCO) outputs.

It supports dual reference modes (1.0 V and 1.3 V), flexible bit orientation, built-in deterministic/pseudorandom test patterns, and individual channel power-down consuming <2 mW per disabled channel. The board exposes all critical analog inputs (VIN±A–D), LVDS data lanes (D0±x/D1±x), clock (CLK±), and control signals (SYNC, PDWN, CSB, SCLK, SDIO).

Key Specifications

Availability

AD9653-125EBZ is available at Aetrix Electronics and suitable for medical ultrasound development, high-speed test equipment design, and diversity radio receiver prototyping requiring stable component supply and full evaluation board support.

Supply support for AD9653-125EBZ 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 AD9653-125EBZ belongs to Analog Devices' high-speed data converter product line, engineered specifically for wideband, multichannel digitization in demanding instrumentation, communications, and medical imaging applications.

FAQ

What is the primary function of the AD9653-125EBZ evaluation board?

The AD9653-125EBZ is an evaluation board for the AD9653 quad 16-bit 125 MSPS ADC. It provides complete hardware access to all analog inputs, LVDS serial outputs, clock, and SPI control interfaces, enabling engineers to validate timing alignment, multichip sync, digital test pattern generation, and system-level performance before integration into final designs.

Does the AD9653-125EBZ support both 1.0 V and 1.3 V internal reference modes?

Yes, the AD9653-125EBZ supports both reference configurations: 1.0 V mode yields 2.0 V p-p differential input range, while 1.3 V mode supports 2.6 V p-p input span. These are configured via SPI register settings and validated in the board's default firmware, allowing users to match transducer or mixer output voltage levels directly.

Can the AD9653-125EBZ be used for multichip synchronization in phased-array systems?

Yes, the AD9653-125EBZ implements dedicated SYNC input and multichip sync capability per the AD9653 datasheet. When multiple AD9653-125EBZ boards are driven by a common clock and synchronized via simultaneous SYNC assertion, they achieve deterministic inter-channel phase alignment-critical for beamforming in ultrasound and radar applications.

What LVDS output options does the AD9653-125EBZ support?

The AD9653-125EBZ supports two LVDS output modes: standard ANSI-644 compliance (±290–400 mV differential swing) and low-power reduced-range mode (±160–230 mV). Both are software-selectable via SPI and routed to onboard SMA connectors, enabling optimization for noise margin versus power in high-density PCB layouts.

Is the AD9653-125EBZ compatible with Xilinx or Intel FPGA development platforms?

Yes, the AD9653-125EBZ includes documented pin mappings and timing constraints for interfacing with Xilinx Kintex-7 and Virtex-7 FPGAs, as well as Intel Stratix V devices. Reference HDL code, I/O standards (LVDS_25), and clocking schemes (DDR capture using IDELAY/IDELAYCTRL or ALTLVDS_RX) are provided in the official Analog Devices user guide for AD9653-125EBZ.