LTC2250CUH#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2250CUH#TRPBF is a 10-bit, 105Msps low noise analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single 3V supply with power dissipation of 320mW. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 61.6dB and a Spurious Free Dynamic Range (SFDR) of 85dB at the Nyquist frequency. The device features a flexible input range selectable between 1VP-P and 2VP-P via the SENSE pin. It utilizes a 32-pin 5mm × 5mm QFN package and includes integrated clock duty cycle stabilization, shutdown modes, and a separate output supply for logic interfacing.

Analog To Digital Converters (ADC) Feature Summary

• 10-Bit Resolution with No Missing Codes
• 105Msps Sampling Rate with 640MHz Full Power Bandwidth
• Low Noise Performance: 61.6dB SNR and 85dB SFDR
• Flexible Input Range: 1VP-P to 2VP-P Selectable
• Integrated Clock Duty Cycle Stabilizer

Analog To Digital Converters (ADC) Applications

• Wireless and Wired Broadband Communication
• Imaging Systems
• Ultrasound
• Spectral Analysis
• Portable Instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRPBF confirms Lead-Free Tape and Reel packaging. Confirm the 'C' grade indicates a commercial operating temperature range of 0°C to 70°C. Ensure the 32-QFN package dimensions match the PCB footprint requirements. Cross-reference the specific lot traceability if required by quality standards.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2250 over the LTC2251 if a 105Msps sampling rate is sufficient, as it offers lower power consumption (320mW vs 395mW). Choose the LTC2252 or LTC2253 if 12-bit resolution is required instead of 10-bit. Ensure the application can support the 3V single-supply requirement and provides adequate drive impedance (≤100Ω) for optimal dynamic performance.

Analog To Digital Converters (ADC) Part Context

The LTC2250 is part of the LTC225x family of low noise 3V ADCs. It is pin-compatible with the 125Msps LTC2251, the 12-bit LTC2252/LTC2253, and other speeds in the LTC22xx series (e.g., LTC2239, LTC2229). This compatibility allows for design flexibility across different bandwidth and resolution requirements within the same form factor.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2251 is a direct pin-compatible replacement offering a higher 125Msps sampling rate but with increased power dissipation. For 12-bit resolution requirements, consider the LTC2252 (105Msps) or LTC2253 (125Msps). Lower speed alternatives like the LTC2239 (80Msps) are also pin-compatible.