LTC1746IFW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1746IFW#TRPBF is a 25Msps, 14-bit pipelined analog-to-digital converter (ADC) from Analog Devices Inc. It operates on a single 5V supply with a power dissipation of 390mW. The device features a differential analog input and supports selectable input ranges of ±1V or ±1.6V via the SENSE pin. Key performance metrics include a signal-to-noise ratio (SNR) of 77.5dB and spurious-free dynamic range (SFDR) of 91dB at a 5MHz input frequency with the 3.2V range. It utilizes a parallel digital interface compatible with 5V, 3V, and 2V logic systems.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes over temperature
• 25Msps sampling rate with 0.3ps RMS aperture jitter
• Selectable input ranges: ±1V (SENSE to GND) or ±1.6V (SENSE to VDD)
• Digital output supply (OVDD) adjustable from 0.5V to 5V

Analog To Digital Converters (ADC) Applications

• Telecommunications base stations
• Medical imaging systems
• Spectrum analysis equipment
• High-performance receivers

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates tape-and-reel packaging. Confirm the 'I' grade designation for the -40°C to +85°C operating temperature range. Check current availability status as high-speed ADCs may have long lead times or discontinuation notices.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 14-bit resolution at 25Msps is required with low power consumption. Ensure the input drive circuitry can provide a source impedance of 50Ω or less to maintain specified SFDR. Verify that the system logic levels are compatible with the OVDD setting for the digital outputs.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1746 family of low-power, high-speed ADCs. It is pin-compatible with other members such as the LTC1745 (12-bit), LTC1744 (14-bit, 50Msps), and LTC1742 (14-bit, 65Msps), allowing for design scalability across different speed and resolution requirements within the same package.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible replacements within the same family include the LTC1746CFW (commercial grade) or higher-speed variants like the LTC1744IFW if increased sampling rate is acceptable. Verify thermal characteristics and timing parameters against the original design constraints.