NAU7802SGI TR

Analog To Digital Converters (ADC) Overview

The NAU7802SGI TR is a precision 24-bit analog-to-digital converter (ADC) manufactured by Nuvoton Technology Corporation. It utilizes a sigma-delta architecture with a sampling rate of 80 samples per second and supports two inputs in differential or single-ended configurations. The device operates on a supply voltage range of 2.7V to 5.5V for both analog and digital domains. It features an integrated programmable gain amplifier (PGA), temperature sensor, and I2C data interface. Packaged in a 16-SOP surface-mount case, it functions within an operating temperature range of -40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a low-noise programmable gain amplifier with selectable gains from 1 to 128.
• Includes an onboard RC or crystal oscillator and a precision 24-bit sigma-delta ADC.
• Provides simultaneous 50Hz and 60Hz notch filtering to enhance interference immunity.
• Features a standard 2-wire I2C compatible interface for host processor connection.

Analog To Digital Converters (ADC) Applications

• Weigh scales
• Strain gauge measurements
• Bridge sensor measurement systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific ordering suffix to confirm the tape and reel packaging format required for automated assembly processes. Confirm that the component status remains active with the manufacturer before finalizing procurement plans. Ensure compatibility with the intended I2C bus voltage levels and check for any recent product change notices regarding pinout or electrical specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-resolution conversion is required for low-level sensor signals without external amplification. The integrated PGA reduces the need for additional discrete components. Consider the 16-SOP package constraints for PCB layout. Verify that the system power supply falls within the specified 2.7V to 5.5V range for optimal performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the NAU7802 series of precision ADCs from Nuvoton. The SGITR suffix specifically denotes the 16-SOP surface-mount package variant supplied in tape and reel format. Other variants in the family include through-hole packages such as the PDIP version, offering flexibility for different manufacturing requirements.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternative 24-bit sigma-delta ADCs with I2C interfaces if direct replacements are necessary, ensuring pin compatibility and electrical parameter alignment.