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Wiring Connections:
- Power Supply:
- VDD: Connect to a 2.0V to 5.5V DC power source.
- GND: Connect to the ground of your power source.
- I2C Communication:
- SCL (Serial Clock Line): Connect to the I2C clock line of your microcontroller.
- SDA (Serial Data Line): Connect to the I2C data line of your microcontroller.
- Input Channels:
- A0 to A3: Connect to the analog signals you want to measure. These are the four input channels.
- Additional Connections:
- ALERT/RDY: Connect to an interrupt pin on your microcontroller if you need an alert signal for conversions or thresholds.
- ADDR: Connect to either GND or VDD to set the I2C address of the ADS1115C.
Power:
- Operating Voltage: 2.0V to 5.5V DC
- Current Consumption: Low, typically around 150 µA in active mode and even lower in sleep mode.
Input and Output:
- Inputs:
- Analog Inputs: Four channels for measuring voltage (A0 to A3).
- Power Input: 2.0V to 5.5V DC.
- Outputs:
- Digital Output: 16-bit digital values corresponding to the input voltages.
- I2C Data: The converted digital values are sent via I2C to the microcontroller.
Physical Characteristics:
- Size: Typically in an 8-pin or 14-pin package.
- Weight: Very lightweight, often around 1 gram.
- Material: Standard PCB (Printed Circuit Board) with integrated circuits.
Technical Specifications:
- Resolution: 16-bit
- Sampling Rate: Up to 860 SPS (samples per second)
- Gain Settings: Programmable Gain Amplifier (PGA) options: ±6.144V, ±4.096V, ±2.048V, ±1.024V, ±0.512V, ±0.256V
- Input Range: ±6.144V to ±0.256V depending on PGA setting
- Temperature Range: Typically -40°C to 125°C
Additional Features:
- Adjustable Data Rate: Allows you to choose between different data rates depending on your requirements.
- Onboard Comparator: Useful for setting thresholds and triggering actions based on specific conditions.
- High Accuracy: Provides accurate and reliable analog-to-digital conversion.
How to Use:
- Wiring:
- Connect the VDD and GND pins to your power supply (2.0V to 5.5V).
- Attach the SCL and SDA pins to the I2C bus lines on your microcontroller.
- Connect the analog inputs (A0 to A3) to the signals you wish to measure.
- Programming:
- Install the appropriate library for the ADS1115C on your microcontroller platform (e.g., Arduino).
- Initialize the I2C communication in your code.
- Configure the ADS1115C settings, including PGA and data rate.
- Read the analog values from the channels using I2C commands.
- Process and use the data as needed for your application.
- Calibration:
- Ensure accurate readings by calibrating the ADC according to your system’s requirements, if necessary.
The ADS1115C 16-Bit 4-Channel ADC with Programmable Gain Amplifier is a versatile and precise component suitable for applications requiring accurate analog measurements and adjustments. Its multiple channels and programmable gain feature make it an ideal choice for a wide range of electronic projects.
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