4-Channel 16-Bit ADC Expansion Board for Raspberry Pi (ADS1115)

This expansion board for Raspberry Pi is based on the Texas Instruments ADS1115 analog-to-digital converter (ADC). It delivers 16-bit precision across four input channels, allowing you to read analog sensors and convert their signals into digital data via the I²C interface.

Well suited for temperature measurement, battery monitoring, or portable instrumentation, this board features a compact Raspberry Pi Zero form factor and integrates an analog Grove connector for easy use with existing Grove modules. Compatible with Raspberry Pi 3B, 3B+, and 4.

Specifications

• Resolution: 16-bit
• Input channels: 4 single-ended or 2 differential
• Supply voltage: 3.3 V / 5 V
• Interface: I²C (configurable addresses 0x48 to 0x4B)
• Current consumption (continuous mode): 150 µA
• Data rate: 8 to 860 samples per second
• Input multiplexer (MUX) included
• Programmable comparator
• Internal low-drift voltage reference
• Internal programmable gain amplifier (PGA)
• Raspberry Pi Zero form factor
• Integrated analog Grove connector