ADS1118IRUGR

Analog To Digital Converters (ADC) Overview

The ADS1118IRUGR is a precision, low-power, 16-bit analog-to-digital converter (ADC) from Texas Instruments. It features an integrated multiplexer, programmable gain amplifier (PGA), internal voltage reference, and oscillator. The device supports two differential or four single-ended input channels with data rates up to 860 samples per second (SPS). It operates on a single power supply ranging from 2 V to 5.5 V for both analog and digital domains. The component utilizes a serial peripheral interface (SPI) for communication and is housed in a 10-lead X2QFN package.

Analog To Digital Converters (ADC) Feature Summary

• Integrates a high-precision temperature sensor for system-level monitoring or cold-junction compensation
• Includes a built-in programmable comparator for undervoltage and overvoltage detection
• Supports configurable input ranges via PGA from ±256 mV to ±6.144 V
• Operates in continuous conversion mode or automatic shutdown single-shot mode

Analog To Digital Converters (ADC) Applications

• Battery-powered portable instrumentation systems
• Industrial process control and monitoring
• High-resolution thermocouple measurement applications
• Strain gauge and bridge sensor interfaces

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix IRUGR corresponds to the industrial temperature grade (-40°C to +125°C) and the X2QFN-10 package configuration. Confirm that the SPI interface timing requirements align with the host microcontroller capabilities. Ensure proper handling procedures are followed due to the moisture sensitivity level associated with the QFN package type.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a small form factor and low power consumption are critical alongside 16-bit resolution. It is suitable for applications requiring multiple sensor inputs through a single ADC channel multiplexer. Consider the internal reference and oscillator integration if external components must be minimized. Evaluate the SPI interface compatibility against the available system bus resources.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS111x family of ultra-small, low-power ADCs. Unlike the I2C-compatible ADS1115, the ADS1118 variant specifically utilizes an SPI interface. It shares architectural similarities with the ADS1018 but offers higher 16-bit resolution compared to the 12-bit alternative. The device is designed to replace discrete solutions in space-constrained environments.

Analog To Digital Converters (ADC) Replacement Considerations

• ADS1118IDGSR: Same functional specifications but packaged in a 10-VSSOP format instead of X2QFN.

Analog To Digital Converters (ADC) FAQ

What is the maximum sampling rate of the ADS1118IRUGR?

The device supports data conversion rates up to 860 samples per second (SPS).

Can the ADS1118 measure both differential and single-ended signals?

Yes, the integrated multiplexer allows for measurements of two differential inputs or four single-ended inputs.

Does the ADS1118 include an internal temperature sensor?

Yes, it integrates a high-accuracy temperature sensor suitable for system monitoring or thermocouple cold-junction compensation.