AD9691BCPZRL7-1250

Overview

The AD9691BCPZRL7-1250 is a dual-channel, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates at a maximum sampling rate of 1250 MSPS and supports analog input frequencies up to 1.5 GHz. The device features a multistage differential pipelined architecture with integrated output error correction logic. Each channel includes two digital downconverters (DDCs), each comprising a 12-bit numerically controlled oscillator (NCO) and four cascaded half-band decimation filters. Data outputs are serialized via an eight-lane JESD204B interface compliant with Subclass 1. The component utilizes 1.25 V, 2.50 V, and 3.3 V power supplies and is housed in an 88-lead LFCSP package.

Feature Summary

• Dual-channel 14-bit ADC cores with integrated sample-and-hold circuits for low power consumption and ease of use.
• On-chip buffer with programmable termination impedance to simplify filter design and implementation.
• Integrated digital signal processing blocks including wideband DDCs with NCO and half-band decimation filters.
• Flexible JESD204B serial output supporting multiple lane configurations for high-speed data transfer.

Applications

• Wideband receivers and digital predistortion in communications systems
• Spectrum analyzers and network analyzers in instrumentation
• DOCSIS 3.x CMTS upstream receive paths
• High-speed data acquisition systems

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and reel specifications. Ensure compatibility with required voltage levels and interface standards before procurement. Cross-reference the manufacturer's part number with authorized distributor catalogs to validate authenticity and current availability status.

Selection Notes

Select this component for applications requiring high linearity and wide bandwidth at 14-bit resolution. Evaluate the power consumption requirements, as the device draws significant current from multiple supply rails. Consider the thermal management needs due to the high-density LFCSP package and total power dissipation characteristics under full operating conditions.

Part Context

This model belongs to the AD969x family of high-speed ADCs from Analog Devices. It shares architectural similarities with the AD9690, AD9694, and AD9695 but offers distinct sampling rates and channel counts. The family is designed for demanding RF and microwave applications requiring precise signal digitization.

Replacement Considerations

The AD9690 serves as a single-channel alternative within the same family. For quad-channel requirements, the AD9694 or AD9695 may be considered. Verify pinout compatibility and software configuration differences when substituting these components in existing designs.