LTC2321CUFD-14

Analog To Digital Converters (ADC) Overview

The LTC2321CUFD-14 is a dual-channel, 14-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates at a sampling rate of 5Msps and features differential or pseudo-differential inputs. The device integrates an internal reference and supports single-ended inputs via external circuitry. Powered by a single 3.3V or 5V supply, it consumes 55mW of power. Key performance metrics include a signal-to-noise and distortion ratio (SINAD) of 79dB, a spurious-free dynamic range (SFDR) of 88dB, and total harmonic distortion (THD) of -85dB. It is housed in a compact 28-lead QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture with 14-bit resolution and 5Msps sampling speed
• Internal voltage reference reduces component count and board space
• Flexible input configuration supporting differential, pseudo-differential, and single-ended modes
• Low power consumption of 55mW with shutdown capability

Analog To Digital Converters (ADC) Applications

• Portable instrumentation
• Medical ultrasound equipment
• Industrial process control systems
• Data acquisition systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix 'CUFD-14' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure that the required operating temperature range aligns with the 'C' grade designation. Confirm availability through authorized distributors as lead times may vary based on production schedules.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a dual-channel ADC with moderate speed and high resolution is required. Compare the 5Msps sampling rate against system bandwidth requirements. Evaluate the 14-bit resolution against noise floor needs. Consider the internal reference accuracy if external precision references are not available. Check the QFN-28 package thermal characteristics for the specific application environment.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2323 family of dual-channel SAR ADCs. It shares architectural similarities with other members like the LTC2323HUFD-14 but differs in performance grades and package options. The family is designed for applications requiring multiple channels without excessive interface complexity.

Analog To Digital Converters (ADC) Replacement Considerations

Direct replacements within the same family include the LTC2323HUFD-14#PBF, which offers similar functionality but potentially different performance grades. Verify pin compatibility and electrical parameter overlaps before substitution.