LTC2205CUK-14#PBF

Analog To Digital Converters (ADC) Overview

The LTC2205CUK-14#PBF is a 14-bit, 65Msps pipelined analog-to-digital converter (ADC) from Analog Devices Inc. It features an internal programmable gain amplifier (PGA) and operates on a single 3.3V supply with 600mW power dissipation. The device provides a signal-to-noise ratio (SNR) of 78.3dB and a spurious-free dynamic range (SFDR) of 98dB at a 2.25VP-P input range. Key specifications include a 700MHz full-power bandwidth, 90fs RMS aperture jitter, and ±1.5LSB integral nonlinearity. It utilizes a 48-pin 7mm x 7mm QFN package and supports an output supply voltage (OVDD) ranging from 0.5V to 3.6V.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with 65Msps sampling rate and 700MHz full-power bandwidth
• Integrated PGA offering selectable 2.25VP-P or 1.5VP-P input ranges
• High dynamic performance: 78.3dB SNR and 98dB SFDR
• Ultralow jitter of 90fs RMS for high-frequency undersampling

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• Cellular base station receivers
• Spectrum analysis equipment
• Imaging systems
• Automatic test equipment (ATE)

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade suffix when ordering. The #PBF designation indicates a lead-free finish. Confirm that the C-grade variant meets the required operating temperature range of 0°C to 70°C for the intended application environment.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high linearity and low noise at 65Msps. Ensure the analog input common mode voltage aligns with the internal 1.25V bias or external reference capabilities. Consider the OVDD flexibility if interfacing with digital logic levels other than 3.3V.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2205-14 family, which shares pin compatibility with the 16-bit LTC2205 and higher-speed variants like the LTC2206 and LTC2207. It serves as a specialized 14-bit version within the broader high-speed ADC portfolio designed for demanding RF and communications signal chain applications.

Analog To Digital Converters (ADC) Replacement Considerations

Pin-compatible alternatives include the LTC2205 (16-bit), LTC2206 (80Msps), and LTC2207 (105Msps). Verify that the bit depth and sampling speed requirements of the new component match the system design constraints before substitution.