LTC2321HUFD-12#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2321HUFD-12#TRPBF is a dual, 12-bit + sign successive approximation register (SAR) analog-to-digital converter in a 28-lead QFN package. It operates from a single 3.3V or 5V supply with an 8VP-P differential input range and wide common mode support. Key electrical parameters include ±0.5LSB typical integral nonlinearity, no missing codes at 12 bits, and 73dB SNR at 500kHz input frequency. The device features a 2Msps per channel throughput with zero cycle latency, low drift internal reference options, and supports CMOS or LVDS serial interfaces.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel 12-bit SAR ADC with 2Msps sampling rate per channel
• Wide input common mode range supporting 8VP-P differential inputs
• Integrated low drift (20ppm/°C max) temperature-compensated reference
• CMOS or LVDS SPI-compatible serial interface with nap and sleep modes

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Communications equipment
• Remote data acquisition networks
• Imaging systems
• Optical networking infrastructure
• Automotive electronics
• Multiphase motor control

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging configuration. Confirm the HUFD suffix corresponds to the –40°C to 125°C industrial temperature grade. Ensure compatibility with host logic voltage levels for the selected CMOS or LVDS interface mode before procurement.

Analog To Digital Converters (ADC) Selection Notes

Select this component when simultaneous dual-channel conversion is required with high common mode rejection. The 12-bit + sign architecture allows digitization of over-range conditions without hardware reconfiguration. Verify that the 30mW per channel power dissipation fits within the thermal budget of the 4mm × 5mm QFN package.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2321-12 family of dual-channel ADCs. The HUFD variant specifically denotes the extended temperature range version (-40°C to 125°C). It shares functional characteristics with the C and I grade variants but offers higher thermal tolerance for demanding environments.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.