LTC2447CUHF#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2447CUHF#TRPBF is a 24-bit, 8-channel Delta-Sigma ADC in a 38-lead QFN package. It features four selectable differential reference inputs and five global reference options for ratiometric or absolute measurements. The device supports up to 8kHz output rates with noise as low as 200nV RMS at 13.8Hz. Key specifications include 0.0005% INL, <5µV offset, and an internal oscillator. The 'C' suffix denotes a commercial temperature range of 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 24-bit resolution with 0.0005% INL and no missing codes
• Eight single-ended or four differential analog inputs
• Five selectable differential reference inputs for multiplexed ratiometric measurements
• Up to 8kHz output rate with 200nV RMS noise at 13.8Hz
• MUXOUT/ADCIN pins for external buffering or gain

Analog To Digital Converters (ADC) Applications

• Flow and weight scales
• Pressure measurement systems
• Direct temperature measurement using RTDs
• Gas chromatography instrumentation

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'C' suffix indicates the commercial temperature grade (0°C to 70°C). Confirm the #TRPBF suffix corresponds to tape and reel packaging. Ensure the specific lot date code meets project requirements before finalizing orders.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC2446 when external buffering or gain stages are required between the input multiplexer and the ADC core. The LTC2447 provides approximately 0.5 effective bits lower noise than the LTC2446 due to its dedicated MUXOUT/ADCIN architecture.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2446/LTC2447 family of high-speed, multi-channel delta-sigma converters. It shares the same pinout and interface logic as the LTC2446 but adds specific pins for external signal conditioning, distinguishing it within the series.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2446IUHF#TRPBF is a direct functional substitute if external buffering is not needed. Verify that the industrial temperature grade (-40°C to 85°C) of the 'I' variant is acceptable for the application environment.