Description: 1. Overview: PCF8591 is a low power 8-channel Analog-to-Digital Converter (ADC) and Digital-to-Analog Converter (DAC) integrated circuit module commonly used in IoT projects for data acquisition and output of analog signals. 2. Features: This module includes eight 10-bit ADC channels for measuring voltage or temperature inputs, and eight 12-bit DAC channels for generating analog outputs. It also has a power-down mode to save power consumption. 3. Communication Interface: The PCF8591 module communicates using the I²C (Inter-Integrated Circuit) protocol, which requires only two data lines (SDA and SCL) for communication between devices. It is thus easy to connect and interface with microcontrollers or other IoT components. 4. Data Acquisition: With its eight ADC channels, this module can be used in various applications such as measuring temperature, pressure, light levels, pH value, humidity, and other analog signals. The 10-bit resolution offers high accuracy and precision for data
| Specification | Details |
|---|---|
| Type | Analog to Digital Converter (ADC) and Digital to Analog Converter (DAC) module |
| Chip | PCF8591 an 8-bit ADC and DAC converter integrated circuit |
| Resolution | 8-bit (0-255 for both ADC and DAC) |
| Conversion Rate | Up to 100 samples per second (SPS) |
| Analog Channels | 4 single-ended analog inputs 1 single-ended analog output |
| Operating Voltage | 5V DC with a current consumption of approximately 400 uA |
| Operating Temperature | -40°C to +85°C |
| Package | DIP-18 (18-pin dual in-line package) |
| Dimensions | 28.75mm x 19.05mm x 5.08mm |
| Weight | Approximately 7 grams |
