ADS1118 Digital-Analogic Converter Module (ADC)

Overview

This module is the smallest 16-bit  Δ-Σ analog-digital converter (as announced by Texas Instruments Incorporated (TI) with lowest power that supports built-in internal reference and can provide 16-bit precision up to 860 samples/second via I2C.

It has programmable gain amplifiers (PGA), reference voltage, temperature sensors and 4-nput multiplexers. At temperature range of 0 ^oC to 65 ^oC, ADS1118 can ensure the realization of the direct linear measurement of less than 0.5 ^oC uncalibrated error, a sharp rise of 75% as compared to the performance of competing solutions.

Specifications

• K-type thermocouple temperature measurement
• Accuracy: <1 ^oC
• High accuracy / repeatability at 0.2 ^oC
• with cold junction/end compensation
• with software algorithms
• utilize the ADS1118 16-Bit ADC (with PGA)

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