AD9680BCPZRL7-1250

Analog To Digital Converters (ADC) Overview

The AD9680BCPZRL7-1250 is a dual-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices Inc., operating at a maximum sampling rate of 1.25 GSPS. It features a pipelined architecture with integrated buffers and sample-and-hold circuits, designed for direct RF sampling applications up to a 2 GHz full power bandwidth. The device utilizes JESD204B Subclass 1 serial digital outputs and includes two integrated wideband digital processors per channel, comprising a 12-bit NCO and four half-band filters. Key electrical specifications include an SNR of 63.6 dBFS at 10 MHz input frequency, an ENOB of 10.3 bits, and DNL/INL values of ±0.5 LSB and ±3 LSB respectively. It operates on 1.25 V, 2.5 V, and 3.3 V analog supplies and 1.25 V digital supply, housed in a 64-lead LFCSP package.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel simultaneous sampling ADC with integrated wideband digital downconverters (DDCs) featuring numerically controlled oscillators and half-band decimation filters.
• JESD204B Subclass 1 compliant high-speed serialized output supporting flexible lane configurations for deterministic latency synchronization.
• Programmable analog input termination impedance options including 400 Ω, 200 Ω, 100 Ω, and 50 Ω differential settings to simplify filter design.
• Integrated fast threshold detection and signal monitor functions to support efficient automatic gain control (AGC) implementation.

Analog To Digital Converters (ADC) Applications

• Diversity multiband, multimode digital receivers for communications systems
• General-purpose software radios
• Ultrawideband satellite receivers
• Signals intelligence (SIGINT) systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix RL7 confirms reel packaging when sourcing components. Confirm that the -1250 speed grade matches the required 1.25 GSPS sampling rate for the target application. Ensure compatibility with the 64-lead LFCSP footprint and thermal requirements during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel, 14-bit resolution with a 2 GHz analog input bandwidth is required. The -1250 variant is appropriate for systems needing the highest sampling rate within the AD9680 family. Consider the integrated DDCs if digital filtering or frequency translation is needed to reduce downstream data rates.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD9680 series of dual, 14-bit high-speed ADCs from Analog Devices. The series includes variants optimized for different sampling rates: 500 MSPS, 820 MSPS, 1 GSPS, and 1.25 GSPS. All variants share the same pinout and core architecture but differ in maximum sampling performance and associated AC specifications.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include AD9680BCPZ-1000, AD9680BCPZ-820, and AD9680BCPZ-500, which offer lower sampling rates but maintain identical pinouts and functionality. Verify that the reduced bandwidth and sampling rate of these alternatives meet the system's Nyquist requirements.