LTC2281CUP#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2281CUP#TRPBF is a dual 10-bit, 125Msps low-power analog-to-digital converter (ADC) from Analog Devices Inc. Operating on a single 3V supply, it features a pipeline architecture with a full power bandwidth of 640MHz. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 61.6dB and a Spurious Free Dynamic Range (SFDR) of 88dB at the Nyquist frequency. The device integrates internal references, offering ±0.1LSB INL and DNL linearity errors. It supports flexible input ranges from 1V to 2V peak-to-peak and includes clock duty cycle stabilization, shutdown modes, and a data ready output clock.

Analog To Digital Converters (ADC) Feature Summary

• Dual 10-bit Pipeline ADCs with 125Msps sampling rate
• Low power consumption of 790mW at 3V supply
• High dynamic performance: 61.6dB SNR and 88dB SFDR
• Integrated clock duty cycle stabilizer for wide duty cycle tolerance
• Flexible analog input range: 1V P-P to 2V P-P

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify the component authenticity by checking the manufacturer marking 'LTC2281UP' against the datasheet specifications. Confirm the package type is a 64-lead 9mm x 9mm plastic QFN. Ensure the temperature grade corresponds to the 'C' suffix (0°C to 70°C) as indicated in the ordering information table.

Analog To Digital Converters (ADC) Selection Notes

Select this model for applications requiring dual-channel digitization at 125Msps with low power constraints. The C-grade variant is suitable for commercial temperature ranges (0°C to 70°C). For industrial temperatures (-40°C to 85°C), consider the I-grade equivalent. Ensure the design accommodates the 64-pin QFN footprint and provides adequate thermal dissipation for 790mW power loss.

Analog To Digital Converters (ADC) Part Context

The LTC2281 belongs to the LTC22xx family of high-speed ADCs. It is pin-compatible with other members such as the LTC2280 (105Msps), LTC2283 (125Msps 12-bit), and LTC2282 (105Msps 12-bit). This allows for design flexibility across different resolution and speed requirements within the same package form factor.

Analog To Digital Converters (ADC) Replacement Considerations

For direct pin-compatible replacements within the same family, refer to the LTC2280, LTC2282, or LTC2283. Verify that the specific speed and resolution requirements of the application are met by the alternative part number before substitution.