LTC2311CMSE-14#PBF

Analog To Digital Converters (ADC) Overview

The LTC2311CMSE-14#PBF is a 14-bit + sign successive approximation register (SAR) analog-to-digital converter with differential inputs and a wide common mode range. Operating from a single 3.3V or 5V supply, it achieves a throughput of 5Msps with one-cycle latency. The device features an onboard low drift temperature-compensated reference (20ppm/°C max) available at 2.048V or 4.096V, alongside an external 1.25V buffered reference input. It dissipates 50mW at 5V and supports CMOS or LVDS SPI-compatible serial interfaces. Key performance metrics include ±0.75LSB typical INL, guaranteed 14-bit no missing codes, and 80dB typical SNR.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with guaranteed no missing codes and ±0.75LSB typical integral nonlinearity
• 5Msps sampling rate with 8VP-P differential input range and wide common mode support
• Integrated low drift (20ppm/°C max) internal reference with external 1.25V buffer input
• SPI-compatible serial interface supporting both CMOS and LVDS logic levels

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Communications equipment
• Remote data acquisition networks
• Imaging systems
• Optical networking infrastructure

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm package type and temperature grade. The #PBF suffix indicates a lead-free plastic MSOP package. Confirm that the required operating temperature range aligns with the 'C' grade specification (0°C to 70°C). Ensure compatibility with the host system's digital I/O voltage levels for either CMOS or LVDS modes.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-speed conversion at 5Msps is required alongside 14-bit accuracy. The wide input common mode range simplifies signal conditioning for applications requiring large dynamic ranges. Consider the integrated reference if board space is limited, or utilize the external 1.25V input for higher precision requirements. Verify power consumption constraints against the 50mW typical dissipation at 5V operation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2311 family of SAR ADCs, which includes variants with different resolutions and sampling rates. The CMSE-14 designation specifically identifies the 14-bit version in a 16-lead MSOP package. Other family members may offer higher speeds or different bit depths but share similar interface and pinout characteristics.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Consult Analog Devices marketing for parts specified with wider operating temperature ranges or alternative package options within the same product line.