MCP4728-E/UN
Quad 12-bit digital-to-analog converters with I2C interface in MSOP package
Manufacturer： microchip
series introduction
# MCP4728-E/UN Product Series Introduction
## 1. Overview
The MCP4728-E/UN is a highly versatile and advanced product series offered by Microchip Technology. It belongs to the category of Digital - to - Analog Converters (DACs), which play a crucial role in modern electronic systems by converting digital signals into analog voltages. This product series is designed to meet the diverse requirements of various applications, from industrial control systems to consumer electronics, providing high - performance and reliable analog output solutions.
## 2. Key Features
### 2.1 High - Resolution DAC
The MCP4728 - E/UN features a 12 - bit resolution for each of its four independent DAC channels. This high resolution allows for precise control of analog output voltages, enabling accurate representation of digital input values. With 12 bits, it can provide up to 4096 discrete output levels, which is sufficient for most applications that demand fine - grained analog control.
### 2.2 I²C Interface
It utilizes the popular I²C (Inter - Integrated Circuit) communication protocol. The I²C interface simplifies the connection between the MCP4728 - E/UN and a microcontroller or other digital devices. It requires only two wires (SDA - Serial Data Line and SCL - Serial Clock Line) for communication, reducing the number of pins and wiring complexity in the system. This makes it easy to integrate into existing designs and is compatible with a wide range of microcontrollers and other I²C - enabled devices.
### 2.3 Power - On Reset and Power - Down Modes
The product series includes a power - on reset feature that ensures the DAC outputs are initialized to a known state when the power is applied. This helps in preventing unexpected analog output values during system startup. Additionally, it supports multiple power - down modes. In power - down mode, the device consumes significantly less power, which is beneficial for battery - powered applications or systems where power consumption needs to be minimized.
### 2.4 Non - Volatile Memory
Each channel of the MCP4728 - E/UN has non - volatile memory (NVM). This allows the user to store the last - used output values in the device. When the power is cycled, the DAC can automatically restore the previously stored values, eliminating the need to reprogram the device every time the power is turned on. This feature is particularly useful in applications where the system needs to resume operation quickly after a power interruption.
### 2.5 Programmable Output Range
The output voltage range of the MCP4728 - E/UN can be programmed. It supports different reference voltage options, including an internal reference voltage and an external reference voltage. This flexibility allows the user to adjust the output voltage range according to the specific requirements of the application, providing greater adaptability in different circuit designs.
## 3. Technical Specifications
### 3.1 Supply Voltage
The MCP4728 - E/UN operates with a supply voltage range of 2.7V to 5.5V. This wide supply voltage range makes it suitable for a variety of power sources, including battery - powered systems and standard 5V power supplies commonly used in many electronic circuits.
### 3.2 Output Voltage Range
When using the internal reference voltage, the output voltage range is typically from 0V to VDD (supply voltage). When an external reference voltage is used, the output voltage range can be adjusted based on the value of the external reference.
### 3.3 Update Rate
The device has a relatively fast update rate, allowing for quick changes in the analog output voltage. This is important in applications where real - time control of analog signals is required, such as in motor control or audio signal
Images for reference
C04-021-MSOP
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