LTC1744CFW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1744CFW#TRPBF is a 50Msps, 14-bit pipelined analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 5V supply with a power dissipation of 1.2W. The device features selectable differential input ranges of –1V or –1.6V and includes an internal 2.5V reference. Key performance metrics include 77dB SNR and 87dB SFDR at a 3.2V range, and 73.5dB SNR with 90dB SFDR at a 2V range. It utilizes a 48-lead TSSOP package and supports digital interfaces compatible with 5V, 3V, and 2V logic systems.

Analog To Digital Converters (ADC) Feature Summary

• 50Msps sampling rate with 14-bit resolution and no missing codes
• Selectable input ranges: –1V (SENSE grounded) or –1.6V (SENSE to VDD)
• Low aperture jitter of 0.3ps RMS for high-frequency undersampling
• Digital output drivers operate on a separate 0.5V to 5V supply (OVDD)

Analog To Digital Converters (ADC) Applications

• Telecommunications base stations
• RF receivers and IF digitization
• Spectrum analysis equipment
• Imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when sourcing. Confirm the 'C' grade designation corresponds to the commercial temperature range of 0°C to 70°C. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Analog To Digital Converters (ADC) Selection Notes

Select this part for applications requiring high dynamic range at 50Msps. Use the SENSE pin to configure the input range based on signal amplitude; ground it for –1V or connect to VDD for –1.6V. Ensure the source impedance is matched and kept below 100Ω to maintain specified SFDR performance.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC174x family of high-speed ADCs. It is pin-compatible with other variants in the series, including the 25Msps LTC1746, 65Msps LTC1742, and 80Msps LTC1748. This allows for design flexibility across different bandwidth requirements without changing the PCB layout.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives within the same family include the LTC1742 (65Msps), LTC1746 (25Msps), and LTC1748 (80Msps). Verify that the sampling rate and dynamic performance of the substitute meet the system requirements before replacement.