LTC2321CUFD-16#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2321CUFD-16#TRPBF is a dual, 16-bit successive approximation register (SAR) analog-to-digital converter with differential inputs and a wide common mode range. It operates from a single 3.3V or 5V supply, providing an 8V P-P differential input range. The device achieves ±4LSB typical INL, no missing codes at 16 bits, and 81dB SNR. It features a low drift internal reference of 2.048V or 4.096V and supports CMOS or LVDS SPI-compatible serial I/O. Power dissipation is 31mW per channel, with nap and sleep modes reducing consumption to 5μW.

Analog To Digital Converters (ADC) Feature Summary

• Dual-channel architecture with independent 2Msps throughput and no cycle latency
• Wide input common mode range supporting bipolar and unipolar signals without configuration
• Integrated temperature-compensated voltage reference with low drift characteristics
• Flexible digital interface compatible with both CMOS and LVDS logic levels

Analog To Digital Converters (ADC) Applications

• High speed data acquisition systems
• Communications equipment
• Remote data acquisition networks
• Imaging applications
• Multiphase motor control

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm the 'C' grade designation corresponds to the commercial operating temperature range of 0°C to 70°C for your application requirements. Ensure the supplier provides documentation confirming lead-free finish compliance as specified in the official Analog Devices datasheet.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring simultaneous high-speed sampling on two channels with minimal latency. The wide common mode input range simplifies signal conditioning by allowing direct connection to various signal sources. Consider the integrated reference if board space and external component count are constraints, noting that disabling it allows for external reference integration.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2321-16 family of dual 16-bit SAR ADCs. The CUFD variant specifically denotes the commercial temperature grade housed in a 28-lead 4mm x 5mm plastic QFN package. The TRPBF suffix identifies the specific shipping configuration as a tape and reel format suitable for automated surface-mount assembly processes.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitutes include the LTC2321IUFD-16#TRPBF for extended industrial temperature ranges and the LTC2321HUFD-16#TRPBF for automotive-grade high-temperature operation. These variants share identical electrical specifications and pinouts but differ only in their certified operating temperature limits.