LTC2373HUH-18#PBF

Analog To Digital Converters (ADC) Overview

The LTC2373HUH-18#PBF is an 18-bit, 1Msps successive approximation register (SAR) analog-to-digital converter featuring an 8-channel input multiplexer. It operates from a single 5V supply and supports fully differential, pseudo-differential unipolar, and bipolar input ranges. The device achieves ±2.75LSB maximum integral nonlinearity with no missing codes at 18 bits. Key performance metrics include a typical signal-to-noise ratio of 100dB for fully differential inputs and 95dB for pseudo-differential configurations. It incorporates an onboard 2.048V temperature-compensated reference, a programmable sequencer, and selectable digital gain compression. Power dissipation is 40mW at full sampling rate, scaling down to 300μW in sleep mode.

Analog To Digital Converters (ADC) Feature Summary

• 18-Bit Resolution with No Missing Codes
• 8-Channel Multiplexer with Selectable Input Range
• SNR: 100dB (Fully Differential)/95dB (Pseudo-Differential)
• Onboard 2.048V Reference and Reference Buffer

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 ordering suffix HUH corresponds to the –40°C to 125°C extended industrial temperature range as specified in the order information table. Confirm package details match the 32-lead 5mm × 5mm plastic QFN format. Ensure compatibility with the DC2071A-A demonstration board if evaluation is required.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high channel count and precision are required in a single SAR ADC. The internal 2.048V reference eliminates external components for standard voltage ranges. Use the programmable sequencer to automate multi-channel scanning. Verify that the 40mW power consumption fits within the system thermal budget during continuous 1Msps operation.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2373-18 family of low noise, high-speed SAR ADCs. The HU suffix denotes the extended temperature grade (-40°C to 125°C), distinguishing it from the C (0°C to 70°C) and I (-40°C to 85°C) variants. All variants share identical electrical specifications and pinouts.

Analog To Digital Converters (ADC) Replacement Considerations

LTC2373IUH-18#PBF offers the same electrical performance with a limited temperature range of –40°C to 85°C. LTC2373CUH-18#PBF is suitable for commercial applications operating between 0°C and 70°C.