7Semi ADS1115 16bit 4-Channel ADC Board with PGA I2C

The 7Semi ADS1115 16-bit 4-Channel ADC Board with PGA is a precision analog-to-digital converter module based on the Texas Instruments ADS1115 chip. It provides four input channels with 16-bit resolution and an integrated programmable gain amplifier (PGA), allowing for accurate voltage measurements from a wide range of sensors and input sources. Communication is handled via the I2C interface, making it compatible with most microcontrollers such as Arduino, Raspberry Pi, and ESP32. This module is ideal for applications requiring high-resolution analog signal acquisition and precise voltage measurement.

Technical Specifications:

• ADC Chip: Texas Instruments ADS1115
  
• Resolution: 16-bit
  
• Number of Channels: 4 (configurable as 4 single-ended or 2 differential)
  
• Input Voltage Range: ±6.144 V (depending on PGA setting)
  
• Programmable Gain Amplifier (PGA): Adjustable gain from 2/3x to 16x
  
• Communication Interface: I2C (address selectable via ADDR pin)
• Data Rate: 8 to 860 samples per second (SPS)
  
• Input Type: Single-ended or differential input mode
  
• Operating Voltage: 2.0 V to 5.5 V (compatible with 3.3 V and 5 V systems)
  
• Interface Compatibility: Standard I2C, up to 3.4 MHz
  
• Operating Temperature: -40°C to +125°C
  
• Power Consumption: Low-power operation suitable for portable devices
  
• PCB: Compact, high-quality FR-4 design with header pins for easy use

Features:

• High-precision 16-bit ADC for accurate analog signal conversion
  
• Four configurable channels for flexible input options
  
• Integrated programmable gain amplifier for wide signal range measurement
  
• I2C interface for easy integration with microcontrollers
  
• Supports both single-ended and differential measurements
  
• Low power consumption suitable for battery-operated systems
  
• Small and breadboard-friendly design
  
• Adjustable I2C address for multi-device operation
  
• Stable and low-noise performance for precision sensing applications

Applications:

• Sensor data acquisition and analog signal measurement
  
• Battery voltage monitoring and power management
  
• Industrial and laboratory instrumentation
  
• IoT devices and data logging systems
  
• Thermocouple, RTD, and environmental sensor interfaces
  
• Medical and scientific measurement equipment
  
• Audio, pressure, and strain gauge signal amplification and digitization