LTC2273CUJ#PBF

Analog To Digital Converters (ADC) Overview

The LTC2273CUJ#PBF is a 16-bit, 80Msps analog-to-digital converter (ADC) featuring a high-speed serial interface compliant with the JESD204 specification. Designed for digitizing high-frequency signals up to 700MHz input bandwidth, it integrates a programmable gain amplifier (PGA) and an internal reference generator. The device operates on a single 3.3V supply with typical power dissipation of 1100mW. Key performance metrics include a 77.7dBFS noise floor, 100dB spurious-free dynamic range (SFDR), and ultra-low internal jitter of 80fs RMS. It utilizes a 40-lead 6mm × 6mm QFN package.

Analog To Digital Converters (ADC) Feature Summary

• High-Speed Serial Interface: Compliant with JEDEC JESD204 standard for simplified digital connectivity.
• Integrated PGA Front End: Offers selectable 2.25VP-P or 1.5VP-P input ranges to optimize signal acquisition.
• High Dynamic Performance: Achieves 100dB SFDR and 77.7dBFS noise floor with 80fs RMS internal jitter.
• Clock Duty Cycle Stabilizer: Ensures high performance at full speed across a wide range of clock duty cycles.

Analog To Digital Converters (ADC) Applications

• Telecommunications
• Cellular Base Stations
• Spectrum Analysis
• Imaging Systems
• Automatic Test Equipment (ATE)

Analog To Digital Converters (ADC) Procurement Notes

Verify the component matches the lead-free finish designation (#PBF) and the commercial temperature grade (C suffix, 0°C to 70°C). Confirm the package is the 40-lead 6mm × 6mm plastic QFN. Ensure the ordering suffix aligns with tube packaging requirements if tape and reel is not specified.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2273 variant for 80Msps sampling rates; use the LTC2272 for 65Msps applications. Consider the I-grade version for extended temperature ranges (-40°C to 85°C). Verify that the system supports the JESD204 serial protocol and can accommodate the 1100mW power dissipation in the QFN package.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC227x family of high-speed serial output ADCs. It is pin-compatible with the LTC2272 (65Msps) and LTC2274 (105Msps), allowing for design flexibility within the same package footprint while adjusting sampling rate requirements.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2272CUJ#PBF is a pin-compatible alternative with a lower 65Msps sampling rate. The LTC2274CUJ#PBF offers a higher 105Msps rate. Both share the same package and interface specifications.