AD9250BCPZRL7-250

Overview

The AD9250BCPZRL7-250 is a dual-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices Inc., designed for high-speed data acquisition. It supports sampling rates up to 250 MSPS with an internal voltage reference and JESD204B serial interface. The device operates on a single 1.8 V supply, consuming 711 mW at maximum speed. Key electrical parameters include a signal-to-noise ratio of 70.6 dBFS at 185 MHz input frequency and a spurious-free dynamic range of 88 dBc. It features a 48-lead LFCSP package and functions within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates two independent 14-bit pipeline ADC cores with output error correction logic.
• Features a configurable JESD204B high-speed serial interface supporting up to 5 Gbps per lane.
• Includes an on-chip phase-locked loop (PLL) to multiply the sampling clock for the JESD204B data rate.
• Provides flexible power-down modes and programmable overrange detection via dedicated pins.

Applications

• Multimode digital receivers for wireless infrastructure standards such as LTE, W-CDMA, and GSM.
• Software-defined radio architectures and general-purpose software radios.
• Electronic test and measurement equipment requiring high-resolution broadband sampling.
• Radar receivers and secure communications systems.

Procurement Notes

Verify the specific ordering suffix RL7 against the manufacturer's current datasheet revision E documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure compatibility with the intended PCB footprint for the 48-lead LFCSP package before finalizing procurement orders.

Selection Notes

Select this component when system requirements demand dual-channel conversion at 250 MSPS with low power consumption. The integrated JESD204B interface reduces board routing complexity compared to parallel interfaces. Consider the 1.8 V supply requirement and thermal dissipation characteristics associated with the LFCSP package during the initial design phase.

Part Context

This part belongs to the AD9250 family of high-speed data converters. It shares architectural similarities with other members like the AD9250-170 but offers higher throughput capabilities. The device is positioned for applications requiring compact form factors and versatile interfacing options in communication and instrumentation systems.

Replacement Considerations

Direct substitutes within the same family include the AD9250-170 variant, which supports lower sampling rates. Verify pinout compatibility and electrical parameter margins when considering alternative manufacturers' dual-channel 14-bit ADCs with JESD204B outputs.

FAQ

What is the maximum data rate supported by the JESD204B interface?

The configurable JESD204B output block supports data rates of up to 5 Gbps per lane.

How does the device handle clock duty cycle variations?

An integrated duty cycle stabilizer (DCS) compensates for variations in the ADC clock duty cycle to maintain excellent performance.

Is an external voltage reference required for operation?

No, the AD9250 includes an internal analog-to-digital converter voltage reference to simplify design considerations.