ADC31JB68RTA25

Analog To Digital Converters (ADC) Overview

The ADC31JB68RTA25 is a single-channel, 16-bit analog-to-digital converter (ADC) from Texas Instruments, operating at a maximum sampling rate of 500 Msps. It features a wide input bandwidth of 1300 MHz and an aperture jitter of 80 fs. The device supports JESD204B Class 1 interface with two lanes capable of 5 Gbps each. Key electrical parameters include a typical power consumption of 915 mW at 500 Msps, an input full-scale range of 1.7 Vpp, and supply voltages of 1.2 V, 1.8 V, and 3 V. At 210 MHz input frequency, it achieves a signal-to-noise ratio (SNR) of 69.3 dBFS and a spurious-free dynamic range (SFDR) of 80 dBc.

Analog To Digital Converters (ADC) Feature Summary

• Integrated foreground and background calibration for consistent dynamic performance across temperature ranges
• On-chip dithering to provide a clean noise floor and optimize spectral purity
• Input amplitude and phase adjustment capabilities for system flexibility
• Support for multi-device synchronization via the JESD204B interface

Analog To Digital Converters (ADC) Applications

• High-frequency receivers in communication systems
• Software-defined radio (SDR) platforms
• Radar signal processing applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the RTA25 suffix against the official Texas Instruments datasheet to confirm package type, tape-and-reel specifications, and environmental classification. Ensure compatibility with existing board layouts regarding the 40-pin QFN footprint and thermal requirements before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high linearity and wide bandwidth are required for single-channel acquisition. The 16-bit resolution and low noise density make it suitable for demanding RF front-end designs where dynamic range is critical compared to lower-resolution alternatives.

Analog To Digital Converters (ADC) Part Context

This part belongs to the JB68 family of high-speed data converters. It complements other Texas Instruments ADCs like the ADS54J69 by offering a single-channel solution with integrated calibration, targeting applications that require simplified system architecture without sacrificing spectral performance.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements may be limited due to specific interface and calibration features. Evaluate the ADS54J69 for dual-channel needs or the ADC08D500 for different resolution requirements, ensuring interface and performance metrics align with system constraints.