Analog Devices Inc. AD9246-125EBZ

Overview

AD9246-125EBZ from Analog Devices is a 48-lead LFCSP evaluation board for the AD9246BCPZ-125, a monolithic 14-bit, 125 MSPS analog-to-digital converter operating from a single 1.8 V analog supply. It features differential input (650 MHz bandwidth), on-chip voltage reference, clock duty cycle stabilizer, and supports offset binary/Gray/twos complement output formats. Designed for high-fidelity IF sampling in communications receivers and ultrasound front-ends.

For engineers reviewing the AD9246-125EBZ datasheet, AD9246-125EBZ pinout, AD9246-125EBZ application, or AD9246-125EBZ equivalent, this page provides verified functional context, power and signal interface specifications, default jumper configurations, layout guidance, and OEM supply support - all specific to the AD9246-125EBZ evaluation platform.

Technical Context

The AD9246-125EBZ implements a multistage differential pipeline ADC architecture with output error correction logic, enabling guaranteed 14-bit accuracy and no missing codes over −40°C to +85°C. Its analog input stage uses a patented sample-and-hold amplifier supporting 1 V_p-p to 2 V_p-p differential ranges and up to 225 MHz input frequencies.

Digital interfacing includes a programmable serial port (SPI-compatible) for configuration of data format, DCS enable, power-down, and reference mode. The board provides dedicated power supplies (AVDD = 1.8 V, DRVDD = 1.8–3.3 V), differential clock inputs (CLK±), and a data clock output (DCO) for synchronous latching at the receiver.

Key Specifications

Availability

AD9246-125EBZ is available at Aetrix Electronics and suitable for IF sampling in communications receivers, medical ultrasound front-ends, and low-cost digital oscilloscope development requiring stable component supply and validated reference design access.

Supply support for AD9246-125EBZ 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 AD9246 product line delivers high-speed, low-power, precision ADCs optimized for demanding communication, imaging, and medical applications where wide analog bandwidth, low jitter, and thermal stability are critical.

FAQ

What is the primary function of the AD9246-125EBZ?

The AD9246-125EBZ is an evaluation board designed specifically to demonstrate and validate the performance of the AD9246BCPZ-125 - a 14-bit, 125 MSPS analog-to-digital converter. It provides complete signal chain access including differential analog input, configurable clocking, SPI-based register control, and LVDS/CMOS-compatible digital outputs, enabling rapid prototyping of high-speed data acquisition systems.

Does the AD9246-125EBZ support external clock sources?

Yes, the AD9246-125EBZ accepts differential clock inputs via CLK+ and CLK− pins compatible with CMOS, LVDS, or LVPECL logic levels. It includes onboard clock conditioning circuitry and supports the AD9246's internal duty cycle stabilizer (DCS) to maintain performance across wide clock duty cycle variations - a key feature confirmed in the AD9246BCPZ-125 datasheet Rev. A.

What analog input configurations does the AD9246-125EBZ support?

The AD9246-125EBZ supports flexible differential analog input drive with a 650 MHz bandwidth SHA, configurable for 1 V_p-p or 2 V_p-p full-scale ranges using the internal 1.0 V reference. It also enables single-ended operation via user-adjustable common-mode bias, as documented in the AD9246BCPZ-125 datasheet Figure 4 and Section "Analog Input Considerations".

Can the AD9246-125EBZ operate with different digital output voltages?

Yes, the AD9246-125EBZ supports digital output driver supply (DRVDD) from 1.8 V to 3.3 V, allowing direct interface with 1.8 V, 2.5 V, or 3.3 V logic families. Output voltage levels (VOH/VOL) and timing parameters are specified across this range in the AD9246BCPZ-125 datasheet Table 3 and Table 4, ensuring compatibility with FPGA or ASIC receivers.

Is the AD9246-125EBZ pin-compatible with other AD92xx evaluation boards?

No - the AD9246-125EBZ is mechanically and electrically tailored to the 48-lead LFCSP_VQ package of the AD9246BCPZ-125. While the underlying AD9246 is pin-compatible with the AD9233 (12-bit family), the AD9246-125EBZ board layout, power routing, and signal termination are unique to the AD9246's performance requirements and do not share footprint or jumper mapping with AD9233EBZ or other AD92xx evaluation platforms.