ADS1118 16-Bit ADC Breakout Module (SPI)
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Prices updated: 12 Oct 2026
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About this product
The ADS1118 is a 16-bit analog-to-digital converter from Texas Instruments with an integrated programmable gain amplifier and a temperature sensor, mounted on a breakout module. It communicates over SPI and is used to measure sensor voltages in data logging and instrumentation projects. The listing title mentions I2C, but the ADS1118 chip uses SPI.
Specifications
- Resolution
- 16-bit
- Interface
- SPI
- Supply voltage
- 2.0 V to 5.5 V
- Input channels
- 4 single-ended or 2 differential
- Built-in temperature sensor
- Yes
Frequently asked questions
Can I connect it over I2C?
No. The ADS1118 is an SPI device, so connect it using SCLK, MOSI, MISO and CS. The I2C mention in the listing does not match the chip, so check the pin labels on the module.
What supply voltage should I use?
The chip supports a supply of 2.0 V to 5.5 V. Keep the analog inputs within the range set by the supply and the programmed gain, as described in the datasheet, and match the logic levels of your microcontroller.
