ADC3669IRTD

Analog To Digital Converters (ADC) Overview

The ADC3669IRTD is a dual-channel, 16-bit analog-to-digital converter (ADC) from Texas Instruments operating at a maximum sampling rate of 500 MSPS. It features a single core architecture with an input full-scale voltage of 2VPP and a full power bandwidth of 1.4GHz. The device delivers a noise spectral density of -160.4dBFS/Hz and achieves a signal-to-noise ratio of 75.6dBFS at 70MHz. DC specifications include typical integral nonlinearity of ±2 LSB and differential nonlinearity of ±0.5 LSB. Power consumption is 300mW per channel at 500MSPS. It utilizes a VQFN-64 package and supports DDR or serial LVDS digital interfaces.

Analog To Digital Converters (ADC) Feature Summary

• Integrated quad-band digital down-converter supporting decimation ratios from /2 to /32768
• Flexible LVDS interface allowing parallel DDR mode for bypass or serial mode for decimated data
• Buffered analog inputs with programmable internal termination options
• 48-bit NCO enabling phase-coherent frequency hopping capabilities

Analog To Digital Converters (ADC) Applications

• Software defined radio
• Radar systems
• Communications infrastructure
• Spectrum analyzer
• Power amplifier linearization

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct packaging configuration. Confirm that the component meets all required environmental operating temperature ranges and supply voltage tolerances before integration into the final design.

Analog To Digital Converters (ADC) Selection Notes

Select this model when high-speed digitization at 500 MSPS is required alongside integrated digital signal processing capabilities. The inclusion of digital down-converters reduces downstream FPGA logic requirements by handling wideband decimation internally.

Analog To Digital Converters (ADC) Part Context

This component belongs to the ADC366x family, which also includes the ADC3668 variant operating at 250 MSPS. Both devices share identical resolution and architectural features but differ in maximum sampling speed. The family is designed for applications demanding low noise and high dynamic range performance.

Analog To Digital Converters (ADC) Replacement Considerations

The ADC3668IRTDT serves as a lower-speed alternative within the same package and feature set. Verify pin compatibility and software register configurations when substituting between variants.