LTC1743IFW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1743IFW#TRPBF is a 12-bit, 50Msps pipelined analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 5V supply with typical power dissipation of 1000mW. The device features selectable differential input ranges of ±1V or ±1.6V via the SENSE pin. Key performance metrics include 72.5dB SNR and 85dB SFDR at a 3.2V range, and 71dB SNR with 90dB SFDR at a 2V range. It exhibits ultralow jitter of 0.3ps RMS and no missing codes. The component is housed in a 48-lead plastic TSSOP package and supports industrial temperature ranges.

Analog To Digital Converters (ADC) Feature Summary

• 50Msps sampling rate with 12-bit resolution and no missing codes
• Selectable input ranges: ±1V (SENSE grounded) or ±1.6V (SENSE to VDD)
• Low aperture delay jitter of 0.3ps RMS for high-frequency undersampling
• Digital interface compatible with 5V, 3V, and 2V logic systems

Analog To Digital Converters (ADC) Applications

• Telecommunications receivers
• Cellular base stations
• 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 'I' grade designation corresponds to the -40°C to +85°C operating temperature range required for the application. Ensure the ordering part number matches the exact datasheet specification to avoid functional discrepancies.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1743IFW#TRPBF for applications requiring high dynamic range at 50Msps. Choose the ±1.6V range by connecting the SENSE pin to VDD for maximum signal swing, or ±1V for lower voltage signals. Ensure the external clock source meets the timing requirements for ENC/ENC inputs to maintain specified SNR and SFDR performance levels.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC174x family of pin-compatible ADCs. It shares the same package and pinout with the 14-bit LTC1744 (50Msps), LTC1742 (65Msps), and LTC1748 (80Msps). This compatibility allows for design upgrades or downgrades within the same form factor without PCB redesign.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the LTC1744IFW#TRPBF (14-bit, 50Msps) for higher resolution or the LTC1742IFW#TRPBF (14-bit, 65Msps) for higher speed. Verify that the replacement's power dissipation and digital interface voltage levels match the existing system constraints.