AD9694TCPZ-500-EP

Overview

The AD9694TCPZ-500-EP is a quad, 14-bit, 500 MSPS analog-to-digital converter (ADC) designed for sampling wide bandwidth analog signals up to 1.4 GHz. It features a multistage differential pipelined architecture with integrated output error correction logic and on-chip buffering. The device supports JESD204B Subclass 1 coded serial digital outputs with lane rates up to 15 Gbps. Power consumption is 1.66 W total at 500 MSPS, utilizing 0.975 V, 1.8 V, and 2.5 V supplies. Key performance metrics include an SFDR of 82 dBFS and SNR of 66.8 dBFS at 305 MHz with a 1.80 V p-p input range. It operates over a military temperature range of −55°C to +105°C.

Feature Summary

• JESD204B Subclass 1 interface supporting lane rates up to 15 Gbps
• Integrated digital downconverters with 48-bit NCO and half-band filters
• Military temperature range qualification for defense and aerospace applications
• On-chip dithering and programmable fast overrange detection

Applications

• Diversity multiband, multimode digital receivers
• 3G/4G, W-CDMA, GSM, LTE, LTE-A communications
• General-purpose software radios
• Ultrawideband satellite receivers
• Radars and signals intelligence (SIGINT)

Procurement Notes

Verify the specific suffix -EP indicates Enhanced Product status compliant with AQEC standards. Confirm that the ordering code TCPZ corresponds to the 72-lead LFCSP package option CP-72-13. Ensure procurement channels provide necessary qualification data and product change notifications required for defense and aerospace supply chains.

Selection Notes

Select this component when military-grade reliability and extended temperature operation are mandatory. The quad-channel architecture simplifies multi-receiver designs compared to single-channel alternatives. Verify system power budget accommodates the 1.66 W dissipation at maximum sampling rates. Ensure FPGA or receiver logic supports JESD204B Subclass 1 for deterministic latency synchronization.

Part Context

This part belongs to the Analog Devices AD9694 family of high-speed ADCs. The -EP suffix designates it as an Enhanced Product variant specifically qualified for defense and aerospace environments under AQEC standards. It shares core electrical specifications with the commercial AD9694 but offers controlled manufacturing baselines and single-site fabrication.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD9694BCPZ-500 for commercial grade applications. For enhanced product requirements, verify availability of other -EP variants in the AD9694 series. Cross-family replacements require careful validation of JESD204B compatibility and thermal management solutions.

FAQ

What is the maximum sample rate supported by the AD9694TCPZ-500-EP?

The device supports a maximum sample rate of 600 MSPS, although the -500 suffix typically denotes optimization for 500 MSPS operation.

How does the AD9694-EP handle multiple device synchronization?

It supports multiple device synchronization through dedicated SYSREF±, SYNCINB±AB, and SYNCINB±CD input pins, enabling precise alignment across JESD204B links.

What is the purpose of the on-chip dithering feature?

On-chip dithering is included to improve small signal linearity, enhancing performance for weak input signals without requiring external noise injection.