*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
- Up to 32 channels on a single bus
- MCP3424 ADC, selectable 12,14,16 and 18-bit resolution
- Voltage input: 0-5V, 0-10V
- Current input: 0-20mA, 4-20mA, 0-40mA
- I2C bus interface 100Khz, 400Khz, 3.4Mhz
- Programmable Gain Amplifier(PGA)
- Pull-up resistors for I2C bus
- Up to 8 boards on a single bus
- Compatible with most microcontrollers
- Single supply operating voltage: 2.7V to 5.5V
- Inverse polarity protection circuits for supply voltage
- Over-voltage protection for inputs
- PCB size: 37x53mm
If you are looking for an analog front-end input board for a standard 4-20mA current loop, the I2C-AI418SV2 is an ideal I2C analog-to-digital converter board, also known as an I2C ADC board. The board can be connected to both voltage and current sources and has 4 channels. Each channel accepts the following inputs: 0-5V, 0-10V, 0-20mA, 4-20mA, and 0-40mA, making it compatible with 4-20mA sensors.
The resolution of the ADC can be selected as 12, 14, 16, or 18 bits, with the most significant bit (MSB) used as a sign bit. The Programmable Gain Amplifier (PGA) can be configured to gain values of 1, 2, 4, or 8.
The board interfaces with a microcontroller through the I2C bus, which supports standard bus speeds of 100kHz, 400kHz, and 3.4MHz. The I2C bus address is selected via two jumpers on the board, allowing up to eight boards to be connected to a single bus. Additionally, the board includes pull-up resistors for the I2C bus, which can be enabled or disabled using jumpers.
The I2C ADC board requires only a single supply voltage ranging from 2.7V to 5.5V for operation.
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.
