LTC1745CFW#PBF

Analog To Digital Converters (ADC) Overview

The LTC1745CFW#PBF is a 12-bit, 25Msps pipelined analog-to-digital converter manufactured by Analog Devices Inc. It operates on a single 5V supply with a power dissipation of 380mW. The device features pin-selectable differential input ranges of ±1V or ±1.6V and includes an internal 2.35V reference. Key performance metrics include a Signal-to-Noise Ratio (SNR) of 72.5dB and a Spurious Free Dynamic Range (SFDR) of 91dB at a 5MHz input frequency using 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

• 12-bit resolution with no missing codes and a sampling rate of 25Msps
• Pin-selectable input ranges: ±1V (SENSE to GND) or ±1.6V (SENSE to VDD)
• Low aperture jitter of 0.3ps RMS for high-frequency undersampling
• Internal 2.35V bandgap reference with dedicated VCM output

Analog To Digital Converters (ADC) Applications

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

Analog To Digital Converters (ADC) Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as indicated in official documentation. Check for obsolescence notices from Analog Devices Inc., as lifecycle status may affect long-term availability. Ensure proper handling for ESD-sensitive surface-mount components.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1745CFW#PBF for applications requiring 12-bit precision at 25Msps. Choose the C-grade suffix for commercial temperature ranges (0°C to 70°C). Ensure the driving circuit supports the required differential input impedance and common-mode voltage of 2.35V. Verify that the digital interface logic levels match the OVDD supply voltage.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1745 family of low-noise, high-speed ADCs. It is part of a pin-compatible series that includes variants with different resolutions and sampling rates, such as the 14-bit LTC1746 and higher-speed models like the LTC1743 and LTC1744.

Analog To Digital Converters (ADC) Replacement Considerations

Direct pin-compatible substitutes within the same family include the LTC1746IFW#PBF (14-bit, 25Msps). Other family members like the LTC1743CFW#PBF offer higher speeds but require verification of interface compatibility.