ADS808Y/250

Analog To Digital Converters (ADC) Overview

The ADS808Y/250 is a 12-bit, 70MHz sampling pipelined analog-to-digital converter (ADC) manufactured by Texas Instruments. It features a high-bandwidth linear track-and-hold with low jitter of 0.25ps rms, supporting differential or single-ended inputs. The device operates on a +4.75V to +5.25V analog supply and accepts +3V to +5V digital logic. Key electrical parameters include a Signal-to-Noise Ratio (SNR) of 64dB at 10MHz input frequency, Spurious-Free Dynamic Range (SFDR) of 68dB, and a typical power dissipation of 740mW with the internal reference active. It utilizes a TQFP-48 PowerPAD package.

Analog To Digital Converters (ADC) Feature Summary

• High dynamic range performance with SNR of 64dB and SFDR of 68dB at 10MHz input frequency
• Low aperture jitter of 0.25ps rms for superior signal fidelity
• Flexible clocking accepting differential or single-ended signals down to 0.5Vp-p
• Selectable full-scale input ranges (1Vp-p, 1.5Vp-p, or 2Vp-p) via internal reference configuration

Analog To Digital Converters (ADC) Applications

• Base station wideband radios including CDMA, GSM, TDMA, 3G, AMPS, and NMT
• Test instrumentation equipment
• CCD imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm RoHS compliance status as specified in current documentation. Ensure handling precautions are observed due to electrostatic discharge sensitivity. Check for moisture sensitivity level requirements prior to soldering. Validate that the TQFP-48 PowerPAD package matches design specifications.

Analog To Digital Converters (ADC) Selection Notes

Select the ADS808Y/250 when a 12-bit resolution and 70MHz sampling rate are required for high-frequency applications. Consider the internal reference options if external voltage references are undesirable. Ensure the system supports the necessary +5V analog supply and compatible digital logic levels. Evaluate thermal management needs given the 740mW power dissipation in the TQFP-48 package.

Analog To Digital Converters (ADC) Part Context

The ADS808Y/250 belongs to the ADS808 family of high-speed ADCs from Texas Instruments. The 'Y' suffix indicates the commercial temperature range (-40°C to +85°C), while '/250' denotes the tape and reel packaging quantity of 250 units. This part is distinct from other ADS series converters by its specific pipelined architecture and integrated reference ladder.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Designers should consult Texas Instruments for current alternative recommendations within the high-speed ADC portfolio.