LTC2280CUP

Analog To Digital Converters (ADC) Overview

The Analog Devices LTC2280CUP is a dual-channel, 10-bit analog-to-digital converter (ADC) operating at a sampling rate of 105Msps. It utilizes a pipelined architecture and requires a single 3V analog supply (2.85V to 3.4V). 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 flexible differential or single-ended input ranges from 1VP-P to 2VP-P, a 575MHz full-power bandwidth, and an integrated clock duty cycle stabilizer. Power consumption is 540mW at maximum speed.

Analog To Digital Converters (ADC) Feature Summary

• Dual 10-bit Pipelined ADCs with 105Msps sampling rate
• Single 3V supply operation with low power dissipation (540mW)
• High dynamic range: 61.6dB SNR and 85dB SFDR
• Integrated clock duty cycle stabilizer for wide clock duty cycle tolerance

Analog To Digital Converters (ADC) Applications

• Wireless and wired broadband communication systems
• Imaging systems requiring high-frequency signal digitization
• Spectral analysis equipment
• Portable instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade suffix when ordering. The 'C' in LTC2280CUP indicates a commercial operating temperature range of 0°C to 70°C. For industrial applications requiring -40°C to 85°C, the 'I' variant (LTC2280IUP) must be selected. Confirm package availability as the QFN-64 form factor is standard for this series.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2280CUP for designs requiring dual-channel, high-speed digitization with moderate resolution. Ensure the system supports a single 3V analog supply and a separate output driver supply (OVDD) ranging from 0.5V to 3.6V. Verify that the input drive circuitry can maintain source impedance below 100Ω to preserve SFDR performance. Consider the pin-compatible LTC2282 if 12-bit resolution is required instead of 10-bit.

Analog To Digital Converters (ADC) Part Context

The LTC2280 belongs to a family of low-noise, 3V dual ADCs from Analog Devices. It shares pin compatibility with other members such as the LTC2282 (12-bit, 105Msps), LTC2294 (12-bit, 80Msps), and LTC2289 (10-bit, 80Msps). This allows designers to scale resolution or speed within the same footprint while maintaining consistent interface requirements.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC2282 (12-bit resolution) and LTC2289 (80Msps speed). Cross-family replacements require careful evaluation of pinout differences and voltage levels.