AD9683BCPZ-250

Analog To Digital Converters (ADC) Overview

The AD9683BCPZ-250 is a 14-bit analog-to-digital converter (ADC) from Analog Devices Inc., designed for high-speed data conversion applications. It supports sampling rates up to 250 MSPS and features a JESD204B serial interface with lane rates up to 5 Gbps. The device operates on a single 1.8 V supply, consuming 434 mW at maximum speed. Key electrical specifications include a signal-to-noise ratio of 70.6 dBFS and a spurious-free dynamic range of 88 dBc at an input frequency of 185 MHz. It utilizes a multistage differential pipelined architecture with integrated error correction logic.

Analog To Digital Converters (ADC) Feature Summary

• JESD204B Subclass 0 or Subclass 1 coded serial digital outputs
• Internal analog-to-digital converter voltage reference
• Flexible analog input range from 1.4 V p-p to 2.0 V p-p
• ADC clock duty cycle stabilizer for maintaining performance

Analog To Digital Converters (ADC) Applications

• Communications systems including TD-SCDMA, WiMAX, W-CDMA, CDMA2000, GSM, EDGE, and LTE
• DOCSIS 3.0 CMTS upstream receive paths and HFC digital reverse path receivers
• Radar receivers and COMSEC radio architectures
• Electronic test and measurement equipment
• General-purpose software radios and ultrasound equipment

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade suffix (-250) against the design requirements to ensure the component meets the necessary 250 MSPS sampling rate specification. Confirm that the LFCSP package type aligns with the PCB layout constraints and thermal management strategy. Ensure compatibility with the required JESD204B link configuration before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 14-bit resolution and 250 MSPS sampling rate are required for wideband applications. Consider the internal voltage reference and flexible input ranges if board space for external components is limited. Verify that the system can support the 5 Gbps lane rate output and the 1.8 V power supply domain. Evaluate the need for the RF clock input option versus standard Nyquist clocking based on system architecture.

Analog To Digital Converters (ADC) Part Context

This component belongs to the AD9683 family of high-speed ADCs. The -250 suffix denotes the 250 MSPS speed grade variant, distinct from the 170 MSPS version. It is part of Analog Devices' portfolio aimed at reducing system size and cost in communications infrastructure by integrating high-performance conversion with a standardized serial interface.

Analog To Digital Converters (ADC) Replacement Considerations

The AD9683BCPZ-170 is a confirmed substitute within the same family offering a lower 170 MSPS sampling rate. Other members of the AD9683 series may be considered if different speed grades or pin configurations are acceptable for the application.

Analog To Digital Converters (ADC) FAQ

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

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

Does the AD9683BCPZ-250 include an internal voltage reference?

Yes, the device features an internal analog-to-digital converter voltage reference to ease design considerations.

What is the typical SNR at 185 MHz input frequency?

The signal-to-noise ratio is 70.6 dBFS at an input frequency of 185 MHz and a sampling rate of 250 MSPS.