AD9680BCPZRL7-500

Analog To Digital Converters (ADC) Overview

The AD9680BCPZRL7-500 is a dual-channel, 14-bit analog-to-digital converter (ADC) from Analog Devices Inc., operating at a maximum sampling rate of 500 MSPS. It features JESD204B Subclass 1 coded serial digital outputs and operates with 1.25 V, 2.5 V, and 3.3 V DC supplies. The device offers a flexible input range of 1.46 V p-p to 2.06 V p-p with a nominal value of 2.06 V p-p. Key performance metrics include an SNR of 69.2 dBFS at 10 MHz input frequency and an SFDR of 83 dBFS at the same frequency. It utilizes a 64-lead LFCSP package and supports integer clock division by 1, 2, 4, or 8.

Analog To Digital Converters (ADC) Feature Summary

• Integrated dual-channel architecture with on-chip buffer and sample-and-hold circuitry for low power and small size.
• Built-in digital downconverters (DDCs) featuring a 12-bit NCO and up to four half-band decimation filters per channel.
• Programmable fast overrange detection and amplitude detect bits to support efficient automatic gain control (AGC).
• Supports multiple device synchronization via SYSREF± and SYNCINB± pins with flexible JESD204B lane configurations.

Analog To Digital Converters (ADC) Applications

• Diversity multiband, multimode digital receivers
• General-purpose software radios
• Ultrawideband satellite receivers
• Signals intelligence (SIGINT)
• DOCSIS 3.0 CMTS upstream receive paths

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific speed grade suffix (-500) against the final system sampling rate requirements. Confirm that the LFCSP-64 package thermal characteristics meet the board's heat dissipation capabilities. Ensure the JESD204B link configuration aligns with the receiving logic device's acceptable lane rates. Check for any recent product change notices regarding pinout or electrical specifications before finalizing the design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a high linearity, dual-channel ADC with integrated digital signal processing is required. The -500 speed grade is suitable for applications where the maximum sampling rate does not exceed 500 MSPS. Consider the internal DDCs if complex baseband conversion is needed to reduce downstream data throughput. Verify that the 2 GHz full power bandwidth exceeds the highest frequency component of the input signal.

Analog To Digital Converters (ADC) Part Context

This part belongs to the AD9680 family of dual, 14-bit, high-speed ADCs. Other variants in the series include the AD9680-1250, AD9680-1000, and AD9680-820, which offer higher maximum sampling rates of 1.25 GSPS, 1 GSPS, and 820 MSPS, respectively. All variants share the same pinout and core architecture but differ in AC performance specifications and power consumption profiles.

Analog To Digital Converters (ADC) Replacement Considerations

Direct functional replacements within the same package and pinout include other AD9680 speed grades such as AD9680BCPZRL7-1000 or AD9680BCPZRL7-1250, provided the lower sampling rate of the -500 variant meets the application needs. Cross-family replacements would require significant redesign due to interface and architectural differences.