*The RoHS icon on this product indicates that the PCBs, components, solder, and chemicals are all lead-free and RoHS compliant. Additionally, this product is produced using a lead-free process. Unfortunately, we are currently unable to provide documentation confirming that this product is RoHS compliant.
Resources:
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Package Includes:
This package doesn't include cables.
Notes:
- This board uses 4-pin connectors for I2C bus.
Features:
- 4 channels of analog inputs
- Voltage ranges: 0-5V, 0-10V
- Current ranges: 0-20mA, 4-20mA, 0-40mA, 0-80mA
- 16-bit ADC, ADS1115
- I2C bus speed: 100Khz, 400Khz, 3.4Mhz
- Pull-up resistors available on I2C lines
- Supports up to 4 boards on a single bus
- Operating voltage: 2.7V to 5.5V
- Inverse polarity protection for power supply
- Over-voltage protections for inputs
- Transient voltage protection for inputs
- EMI/RFI filter for inputs
- Lowpass noise filter
- Programable digital filter
- Programable data rate
This is an I2C bus analog-to-digital converter board. Voltage and current sources can be connected to each input of the board. The board converts the analog values to digital values, which can then be processed by a microcontroller. The microcontroller reads the digital values from the board through the I2C bus.
The I2C ADC board has four inputs. Each input accepts voltage ranges of 0-5V and 0-10V, or current ranges of 0-20mA, 4-20mA, 0-40mA, and 0-80mA. The board provides 16-bit resolution for the digital values, with the most significant bit (MSB) used as a sign bit.
The board requires only a single supply voltage ranging from 2.7V to 5.5V for operation. The I2C bus clock speed is compatible with standard 100kHz, 400kHz, and 3.4MHz modes.
The I2C bus address is selected by setting jumpers, allowing the board to be configured to one of four addresses. This enables up to four boards to be connected on a single bus. The board includes a pair of 10kΩ pull-up resistors for the I2C lines, which can be enabled or disabled with jumpers. Additionally, the board features input transient suppression, over-voltage protection, and an EMI/RFI filter.
To prevent damage to the board, do not plug or unplug I2C cables while the power supply is on. Always turn off the power supply before plugging or unplugging I2C cables on the board.
