M5Stack ADC I2C Unit ADS1110 Analog‑Digital‑Converter V1.1

The M5Stack ADC I2C Unit V1.1 is a compact measuring module that utilizes the 16-bit analog-to-digital converter ADS1110 and integrates an internal reference voltage of 2.048 V. Via the I2C interface, the module can transmit measurement values with data rates of 15, 30, 60, or 240 measurements per second. A programmable gain amplifier (PGA) allows gain factors of 1, 2, 4, or 8, enabling very small analog signals to be captured precisely. Thanks to the built-in reference voltage IC, the module achieves high accuracy, while the continuous self-calibration of the PGA minimizes drift. The device features a very low noise voltage of 10 µV P-P and operates in a temperature range of 0 to 40 °C. With an input voltage range of 0 to 12 V and an INL of a maximum of 0.01% of the full-scale range, the converter is suitable for precise measurements in demanding applications. The connection is made via the standardized HY2.0-4P port, which provides GND, 5 V, SDA, and SCL. Typical applications include industrial process control, factory automation, portable measuring instruments, and smart transmitters.

Features:

• A 16-bit analog-to-digital converter (ADS1110) provides high-resolution measurements
• Integrated programmable gain amplifier (PGA = 1, 2, 4, or 8) with automatic calibration
• Internal reference voltage of 2.048 V enables precise measurements
• I2C interface with standard address 0x48 for easy connection
• Low noise voltage of 10 µV P-P
• Input voltage range from 0 to 12 V
• Data rates between 15 and 240 measurements per second for flexible adaptation
• Temperature drift of only 5 ppm/°C and maximum INL of 0.01% of the full-scale range

Application Examples:

• Industrial process control and regulation
• Temperature measurement in sensor or environmental projects
• Automation in factories or laboratories
• Portable measuring instruments and multimeters
• Intelligent transmitters and smart controls

Download and Links:

• Quick Start Guide
• Official M5Stack Forum

Technical Data:

• Manufacturer: M5Stack
• Manufacturer SKU: U013-V11
• Analog-to-Digital Converter: ADS1110, 16-bit resolution
• Programmable Gain Amplifier: 1/2/4/8-fold gain
• Input Voltage Range: DC 0 – 12 V
• Reference Voltage: internal 2.048 V ± 0.05%
• Communication Interface: I2C (address 0x48)
• Sampling Rate: selectable 15, 30, 60, or 240 SPS
• Temperature Drift: 5 ppm/°C
• INL (Integral Non-Linearity): max. 0.01% of full range
• Supply Voltage: 5 V via M5Stack Port A (GND/5V/SDA/SCL)
• Operating Temperature: 0 – 40 °C
• Dimensions: 32 × 24 × 10.2 mm
• Weight: 12g

Scope of Delivery:

• 1 × ADC V1.1 Unit
• 1 × HY2.0-4P Grove Cable (20 cm)
• 1 × VH3.96-2P Terminal (2 Pin)