Analog Devices Inc. AD9649-40EBZ

Overview

AD9649-40EBZ from Analog Devices is a 14-bit, 40 MSPS analog-to-digital converter (ADC) operating from a single 1.8 V analog supply with differential 700 MHz input bandwidth, 2 V_p-p full-scale input range, and on-chip voltage reference. It delivers 74.5 dBFS SNR at 9.7 MHz input and supports offset binary/gray/twos complement output formats for use in portable medical ultrasound front-ends.

For engineers reviewing the AD9649-40EBZ datasheet, AD9649-40EBZ pinout, AD9649-40EBZ application, or AD9649-40EBZ equivalent, this evaluation board enables rapid characterization of high-speed ADC performance in diversity radio receivers, battery-powered handheld scopes, and smart antenna systems requiring low-power, wide-bandwidth digitization.

Technical Context

The AD9649-40EBZ implements a multistage differential pipeline architecture with output error correction logic to guarantee 14-bit accuracy and no missing codes over −40°C to +85°C. Its sample-and-hold circuit maintains 71.5 dBFS SNR up to 200 MHz input frequency while consuming only 57.2 mW at 40 MSPS with 1.8 V DRVDD.

A programmable integer clock divider (1/2/4), SPI-configurable data alignment, and built-in deterministic/pseudorandom test pattern generation support flexible system integration. The board exposes all 32-pin LFCSP signals-including DCO, MODE/OR, and SENSE-enabling full validation of timing, power-down modes, and reference configuration per Rev. B datasheet.

Key Specifications

Availability

AD9649-40EBZ is available at Aetrix Electronics and suitable for diversity radio systems, handheld oscilloscope front-ends, and portable medical ultrasound applications requiring stable component supply and full evaluation board traceability.

Supply support for AD9649-40EBZ 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 AD9649 product line delivers precision, low-power, high-speed ADCs optimized for communications infrastructure, portable instrumentation, and medical imaging where wide input bandwidth and low power are essential.

FAQ

What is the primary function of the AD9649-40EBZ evaluation board?

The AD9649-40EBZ is an evaluation board for the AD9649-40 14-bit, 40 MSPS analog-to-digital converter. It provides complete signal chain access-including differential analog inputs, clock inputs, digital outputs, and SPI interface-to validate ADC performance in real-world systems such as diversity radio receivers and portable ultrasound front-ends. The board supports full characterization per the AD9649 Rev. B datasheet.

Does the AD9649-40EBZ support multiple output data formats?

Yes, the AD9649-40EBZ enables configuration of the underlying AD9649-40 IC for offset binary, gray code, or twos complement output formats via its onboard SPI interface or hardware pins (SCLK/DFS). This flexibility allows seamless integration with various FPGA or ASIC logic families without external level-shifting or format conversion logic.

What clock input types does the AD9649-40EBZ accept?

The AD9649-40EBZ accepts differential clock inputs compatible with CMOS, LVDS, or LVPECL signaling standards on CLK+/CLK− pins. The board routes these signals with controlled impedance and includes termination options to maintain signal integrity across the full 80/160 MHz input clock range required for 40 MSPS operation with divide-by-2 mode enabled.

How is power managed on the AD9649-40EBZ evaluation board?

The AD9649-40EBZ provides independent 1.8 V analog (AVDD) and 1.8–3.3 V digital output (DRVDD) supplies, matching the AD9649-40's dual-domain architecture. It includes dedicated decoupling, power sequencing control, and test points for measuring current draw-enabling accurate validation of the 57.2 mW total power consumption specified at 40 MSPS with 1.8 V DRVDD.

Can the AD9649-40EBZ be used to evaluate out-of-range detection functionality?

Yes, the AD9649-40EBZ exposes the MODE/OR pin, which functions as an out-of-range (OR) digital output by default. When the AD9649-40's input exceeds the 2 V_p-p full-scale range, the OR signal asserts high, allowing immediate system-level fault detection. This behavior is fully testable using the board's accessible GPIO header and documented in Register 0x2A of the AD9649-40 datasheet.