LTC1742IFW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1742IFW#TRPBF is a 14-bit, 65Msps low noise analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates on a single 5V supply and dissipates 1.275W of power. The device features selectable differential input ranges of –1V or –1.6V, determined by the SENSE pin configuration. Key performance metrics include a signal-to-noise ratio (SNR) of 76.5dB at 5MHz input in the 3.2V range and a spurious free dynamic range (SFDR) of 90dB. It exhibits ultralow jitter of 0.15ps RMS and no missing codes across the operating temperature range. The component is housed in a 48-lead plastic TSSOP package.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 65Msps sampling rate
• Selectable input ranges: –1V (SENSE grounded) or –1.6V (SENSE to VDD)
• Ultralow aperture delay jitter of 0.15ps RMS
• Digital interface compatible with 5V, 3V, 2V, and LVDS logic levels

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• Cellular base stations
• Spectrum analysis equipment
• Imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify that the ordering suffix #TRPBF corresponds to tape and reel packaging when sourcing this specific part number. Confirm the 'I' grade designation indicates an industrial temperature range of –40°C to 85°C. Ensure the source documentation matches the manufacturer's official specifications for the LTC1742 family to validate electrical parameters.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1742IFW#TRPBF for applications requiring high-speed digitization of wide dynamic range signals. Choose the 3.2V input range by connecting the SENSE pin to VDD for maximum signal swing, or use the 2V range by grounding SENSE. Ensure the digital output supply (OVDD) is set between 0.5V and 5V to match downstream DSP or FIFO logic levels.

Analog To Digital Converters (ADC) Part Context

The LTC1742 is part of a pin-compatible family of low noise ADCs from Linear Technology (now Analog Devices). It shares the same footprint as the LTC1741 (12-bit), LTC1743 (12-bit, 50Msps), LTC1744 (14-bit, 50Msps), LTC1745 (12-bit, 25Msps), LTC1746 (14-bit, 25Msps), LTC1747 (12-bit, 80Msps), LTC1748 (14-bit, 80Msps), allowing for design flexibility across different speed and resolution requirements.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.