The PCF8591 Module Analog to Digital / Digital-Analog Converter Module is a versatile breakout board built around the PCF8591 IC. This device integrates an 8-bit analog-to-digital converter (ADC) and digital-to-analog converter (DAC) with four multiplexed analog inputs and one analog output. It operates via a two-wire I2C serial interface, enabling easy integration with microcontrollers such as Arduino, Raspberry Pi, and others.
Designed for low power consumption and single-supply operation, the module supports programming hardware addresses using three configurable pins (A0, A1, A2), allowing up to eight modules on the same I2C bus. Key features include analog input multiplexing, on-chip track and hold, and seamless conversion between analog and digital signals. The maximum conversion speed is limited by the I2C bus clock frequency.
🔧 Key Features
- Compact PCF8591 Analog to Digital / Digital-Analog Converter Module
- 4 multiplexed analog inputs with 8-bit ADC resolution
- 1 analog output with 8-bit DAC resolution
- Configurable I2C hardware address via A0, A1, A2 pins
- Single-supply operation with low power consumption
- On-chip track and hold function for stable conversion
- Easy to interface with Arduino, Raspberry Pi, and other microcontrollers
📐 Technical Specifications
Product Name | PCF8591 Analog to Digital / Digital-Analog Converter Module |
IC Model | PCF8591 |
Analog Inputs | 4 multiplexed single-ended inputs |
Analog Output | 1 output DAC channel |
Resolution | 8-bit ADC & DAC |
Interface | I2C serial bus |
Address Pins | A0, A1, A2 configurable (up to 8 devices) |
Supply Voltage | 2.5V to 6V DC |
Max Conversion Rate | Limited by I2C clock speed (typically 100kHz or 400kHz) |
Operating Temperature | -40°C to +85°C |
Dimensions | Approx. 30mm × 20mm × 10mm |
Mounting | Breakout PCB with pin headers |
📌 Applications
- Analog sensor data acquisition
- Microcontroller ADC and DAC expansion
- IoT projects requiring analog interface
- Prototyping and embedded systems
- Education and electronics experimentation
💡 Why Choose This Module?
The PCF8591 Analog to Digital / Digital-Analog Converter Module offers a compact and efficient way to add analog input and output capabilities to microcontroller projects. Its flexible I2C interface and multiple input channels make it a versatile choice for prototyping and embedded system design.
📦 Package Includes
- 1 × PCF8591 Analog to Digital / Digital-Analog Converter Module
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