ADC12SJ800AAVQ1

Analog To Digital Converters (ADC) Overview

The ADC12SJ800AAVQ1 is a single-channel, 12-bit analog-to-digital converter (ADC) from Texas Instruments. It operates at a maximum sampling rate of 800MSPS and features a full-power input bandwidth of 6GHz. The device utilizes a non-interleaved architecture with an internal dither to reduce high-order harmonics. Performance specifications include a signal-to-noise ratio (SNR) of 57.6dBFS and an effective number of bits (ENOB) of 9 Bits at 97MHz. It supports JESD204C serial data interfaces with baud-rates up to 17.16Gbps and optional internal clock generation via a PLL and VCO operating between 7.2GHz and 8.2GHz. Power consumption at 800MSPS is 830mW, supplied by 1.1V and 1.9V rails.

Analog To Digital Converters (ADC) Feature Summary

• AEC-Q100 qualified for automotive applications across the –40°C to +125°C temperature range.
• JESD204C interface supporting deterministic latency through Subclass-1 and multiple encoding modes.
• Integrated phase-locked loop (PLL) with voltage-controlled oscillator (VCO) for internal sampling clock generation.
• Timestamp input and output functionality designed specifically for pulsed system synchronization.

Analog To Digital Converters (ADC) Applications

• Light detection and ranging (LiDAR)
• Frequency modulated continuous wave (FMCW) LiDAR systems
• Direct RF sampling of L-band and S-band signals

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and qualification grade. Ensure that any required export control documents are prepared prior to purchase, as this product may require additional files for export from the United States. Confirm compatibility with existing system power supplies and clocking infrastructure before finalizing procurement.

Analog To Digital Converters (ADC) Selection Notes

Select the ADC12SJ800AAVQ1 when a single-channel configuration is sufficient for the application, as it offers lower power consumption compared to dual or quad-channel variants. Consider the internal PLL capabilities if external high-frequency clocking hardware needs to be minimized. Verify that the 12-bit resolution and 800MSPS sampling rate align with the dynamic range and bandwidth requirements of the target signal processing chain.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC12xJ800-Q1 family, which includes quad and dual-channel versions sharing similar core architectures. All variants in this series utilize the FCBGA-144 package and support the same JESD204C interface standards. The single-channel designation indicates dedicated analog inputs without shared resources found in multi-channel devices, optimizing performance for isolated signal paths.

Analog To Digital Converters (ADC) Replacement Considerations

The ADS5474-SP is documented as a pin-compatible alternative within the broader TI portfolio, though it differs significantly in resolution and technology. Direct functional replacements within the same family include the ADC12DJ800-Q1 and ADC12QJ800-Q1, provided channel count differences are acceptable. Verify electrical characteristics carefully when substituting across different channel counts.

Analog To Digital Converters (ADC) FAQ

What is the maximum baud-rate supported by the JESD204C interface?

The device supports a maximum SerDes baud-rate of 17.16Gbps.

How does the device handle high-order harmonics?

An internal dither mechanism is included in the ADC core to reduce high-order harmonics.

Can the device generate its own sampling clock?

Yes, it features an optional internal sampling clock generation block consisting of a PLL and a VCO operating between 7.2GHz and 8.2GHz.