ADC12DJ4000RFZEG

Analog To Digital Converters (ADC) Overview

The ADC12DJ4000RFZEG is a dual-channel, RF-sampling analog-to-digital converter manufactured by Texas Instruments. It features a 12-bit resolution with sampling rates up to 8 GSPS in single-channel mode and 4 GSPS in dual-channel mode. The device supports direct RF sampling from DC to over 10 GHz, utilizing an FCBGA-144 package. Key performance metrics include a noise floor of -152.3 dBFS/Hz in dual-channel mode and -155 dBFS/Hz in single-channel mode. It incorporates JESD204C serial interfaces supporting lane rates up to 17.16 Gbps, optional digital down-converters, and programmable FIR filters for equalization.

Analog To Digital Converters (ADC) Feature Summary

• Configurable dual-channel or single-channel operation with high-speed JESD204C output interface
• Noiseless aperture delay adjustment for precise sampling control and simplified synchronization
• Integrated digital down-converters with independent numerically controlled oscillators
• Programmable finite impulse response filter for on-chip signal equalization

Analog To Digital Converters (ADC) Applications

• Oscilloscopes and wideband digitizers
• Communications testers including 5G and 802.11ad systems
• Electronic warfare applications such as SIGINT and ELINT
• Satellite communications (SATCOM) systems
• RF-sampling software-defined radio (SDR)

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix ZEG against the manufacturer's current documentation to confirm package type and temperature range specifications. Ensure compatibility with system power supply requirements of 1.1V and 1.9V. Confirm that the FCBGA-144 footprint matches the printed circuit board design constraints before finalizing procurement orders.

Analog To Digital Converters (ADC) Selection Notes

Select this component when direct RF sampling above 10 GHz is required with 12-bit resolution. Evaluate the trade-off between line rate and channel count using the configurable JESD204C interface. Consider the optional digital down-converter functionality if baseband conversion and reduced interface data rates are necessary for the target application architecture.

Analog To Digital Converters (ADC) Part Context

This device belongs to the ADC12DJ4000RF family of high-speed RF-sampling converters. It shares pin compatibility with other members of the series, such as the ADC12DJ5200RF, allowing for scalable design options across varying resolution and sampling rate requirements within the same form factor.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC12DJ5200RF serves as a higher-performance alternative within the same pin-compatible family. Verify functional equivalence regarding interface protocols and power consumption when substituting components in existing designs.

Analog To Digital Converters (ADC) FAQ

What encoding schemes does the JESD204C interface support?

The interface supports both 8b/10b and 64b/66b data encoding schemes. The 64b/66b mode includes forward error correction capabilities.

How is deterministic latency achieved in multi-device systems?

Deterministic latency is supported through JESD204C subclass-1, which facilitates multi-device synchronization alongside automatic SYSREF timing calibration.

What is the maximum peak RF input power for the differential inputs?

The peak RF input power is +26.5 dBm (+27.5 dBFS) for differential inputs with a 100-Ω termination.