LTC2372CUH-18#PBF

Analog To Digital Converters (ADC) Overview

The LTC2372CUH-18#PBF is an 18-bit, 500ksps successive approximation register (SAR) analog-to-digital converter manufactured by Analog Devices Inc. It features a highly configurable 8-channel input multiplexer supporting fully differential, pseudo-differential unipolar, and bipolar ranges. The device operates from a single 5V supply with 1.8V to 5V I/O voltages. Key electrical specifications include a maximum integral nonlinearity of ±2.75 LSB, typical signal-to-noise ratios of 100 dB (fully differential) or 95 dB (pseudo-differential), and total harmonic distortion of –110 dB. Power dissipation is 27 mW at full sampling rate, scaling down via nap and sleep modes.

Analog To Digital Converters (ADC) Feature Summary

• 18-Bit Resolution with No Missing Codes
• 8-Channel Multiplexer with Selectable Input Range
• Onboard 2.048V Reference and Reference Buffer
• Programmable Sequencer with Depth of 16

Analog To Digital Converters (ADC) Applications

• Programmable Logic Controllers
• Industrial Process Control
• High Speed Data Acquisition
• Portable or Compact Instrumentation
• ATE

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade suffix against project requirements: 'C' for commercial (0°C to 70°C), 'I' for industrial (-40°C to 85°C), or 'H' for extended industrial (-40°C to 125°C). Confirm package availability in tube format for the #PBF variant. Ensure compatibility with the required logic voltage levels on the SPI interface.

Analog To Digital Converters (ADC) Selection Notes

Select this component when an 8-channel multiplexed ADC with high linearity is required. The internal reference buffer allows for overdriving the reference input up to 5V for improved dynamic performance. Consider the 32-lead QFN package dimensions (5mm × 5mm) for PCB layout constraints. Verify that the 500ksps throughput meets the system bandwidth needs.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2372-18 family of low noise, high-speed SAR ADCs. The 'CUH' designation indicates the commercial temperature grade version housed in a 32-lead plastic QFN package. Other variants in the series include the LTC2372IUH-18 and LTC2372HUH-18 for wider operating temperature ranges.

Analog To Digital Converters (ADC) Replacement Considerations

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