*The RoHS icon with this product means the PCBs, components, solder, chemicals are all lead-free and RoHS compliant. And this product is produced in lead free process. Unfortunately, now, we cannot provide documentation for this product is RoHS compliant.
Resources:
*If your browser program can't show a pdf file on a screen completely, please save it into your computer and open it with a pdf reader program.
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 on each input: 0-5V, 0-10V
- Current on each input: 0-20mA, 4-20mA, 0-40mA, 0-80mA
- 16-bit ADC, ADS1115
- I2C bus speed 100Khz, 400Khz, 3.4Mhz
- Availability pull-up resistors on I2C lines
- Up to 4 boards on a single bus
- A single supply voltage: 2.7V to 5.5V for operation
- Inverse polarity protection circuits for power supply
- Over voltage protections for inputs
- Lowpass Filter
- Programable digital filter
- Programable data rate
This is an I2C bus analog to digital converter board, a small 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 then the digital values can be processed by a microcontroller. The microcontroller can read the digital values through I2C bus. The small I2C ADC board has four inputs. Each input accepts voltage 0-5V and 0-10V and current 0-20mA, 4-20mA, 0-40mA and 0-80mA. The resolution of digital values of the board is 16 bits which the most significant bit (MSB) is used for a sign bit.
The board needs only a single supply voltage from 2.7V to 5.5V. The I2C bus is compatible with the standard 100Khz, 400Khz and 3.4Mhz modes.
The I2C bus addresses are selected by jumpers. The board can be configured to one of four addresses. It means four boards can be connected on a single bus. The board has a pair of 10K ohm pull-up resistors for I2C lines, SCL and SDA lines. These registers can be enabled or disabled with the jumpers.
To prevent damage to the board. Don't plug and/or unplug I2C cables on the board while a power supply still turns on. Turn off a power supply before plug and/or unplug I2C cables on the board.
