*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 does not include Din-Rail PCB holders and cables.
Notes:
- This board uses 4-pin connectors for I2C bus.
- Side by side linking of this products uses 2.5 inch long of wires.
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 speeds: 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
- Low-pass noise filter
- Programable digital filter
- Programable data rate
- DIN-rail mountable
This is a DIN-rail I2C bus analog-to-digital converter board (I2C ADC 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 microcontrollers. The microcontrollers can read the digital values from the board through the I2C bus.
The I2C ADC board has four inputs. Each input accepts voltage in the ranges of 0-5V and 0-10V, and current in the ranges of 0-20mA, 4-20mA, 0-40mA, and 0-80mA. The digital value resolution is 16 bits, 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 jumpers, allowing the board to be configured to one of four addresses. This means up to four boards can 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. These 10kΩ resistors are suitable for a 100kHz bus speed. The board can be mounted on a DIN-rail PCB holder.
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.
