*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:
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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: 0-5V, 0-10V
- Current: 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
- Operating voltage: 2.7V to 5.5V
- Inverse polarity protection circuits 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 then the digital values can be processed by a microcontroller. The microcontroller reads the digital values from the board through an I2C bus. The I2C ADC board has four inputs. Each input accepts voltage 0-5V and 0-10V or accepts current 0-20mA, 4-20mA, 0-40mA and 0-80mA. The resolution of digital values of the board is 16 bits. 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 for operation. The I2C bus is compatible with the standard 100Khz, 400Khz and 3.4Mhz modes.
The I2C bus addresses are selected by setting jumpers. Therefore, the board can be configured to one of four addresses. This means that four boards can be connected on a single bus. The board has a pair of 10K ohm pull-up resistors for I2C lines. These resisters can be enabled or disabled with jumpers. The board has input transient suppression, over voltage protection and EMI/RFI filter.
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.
