MCP4821-E/SN

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MCP4821-E/SN

IC DAC 12BIT V-OUT 8SOIC

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規格

Package Tube
ProductStatus Active
NumberofBits 12
NumberofD/AConverters 1
SettlingTime 4.5µs (Typ)
OutputType Voltage - Buffered
DifferentialOutput No
DataInterface SPI
ReferenceType Internal
Voltage-SupplyAnalog 2.7V ~ 5.5V
Voltage-SupplyDigital 2.7V ~ 5.5V
INL/DNL(LSB) ±4, ±0.25
Architecture String DAC
OperatingTemperature -40°C ~ 125°C
Package/Case 8-SOIC (0.154, 3.90mm Width)
SupplierDevicePackage 8-SOIC

概述

Description

The MCP4821-E/SN is a 12-bit digital-to-analog converter (DAC) from Microchip Technology, designed for applications requiring precision voltage output. It features a single-channel output and operates with a supply voltage range of 2.7V to 5.5V. The device communicates via an SPI-compatible interface, making it easy to integrate into various microcontroller environments.
Key features include low power consumption (< 1 mA), a built-in voltage reference, and the ability to generate analog voltages from 0V up to nearly the supply voltage. Its internal structure includes an on-chip operational amplifier that enhances output stability and impedance. Ideal use cases include audio applications, sensor data processing, and any system needing precise analog control.
The MCP4821-E/SN is packaged in a compact 8-lead MSOP or PDIP format, facilitating easy integration into space-constrained designs. Its versatility and precision make it a popular choice among engineers working on a range of electronic projects.

Features

The MCP4821-E/SN is a 12-bit Digital-to-Analog Converter (DAC) featuring the following key attributes:
1. Resolution: 12-bit resolution, providing 4096 discrete output levels.
2. Output Voltage Range: Ranges from 0V to V_REF (typically up to 5V) with a single-ended output.
3. Interface: SPI (Serial Peripheral Interface) compatible, allowing for easy integration with microcontrollers.
4. Low Power Consumption: Operating current is typically low, making it suitable for battery-powered applications.
5. Integrated Amplifier: Includes an internal output buffer, eliminating the need for external components in many applications.
6. Power Supply: Operates from a single supply voltage between 2.7V and 5.5V.
7. Latching Output: Output data is latched, ensuring stable DAC output after data is written.
8. Dual Channel: Comes with a single DAC output but allows multiple devices to be chained for expanded functionality.
9. Temperature Range: Suitable for industrial applications with an extended temperature range of -40°C to +125°C.
These features make the MCP4821-E/SN ideal for various applications, including sensor interfacing, audio processing, and control systems.

Package

The MCP4821-E/SN is packaged in a 14-pin PDIP (Plastic Dual In-line Package) format. This package type facilitates easy mounting on printed circuit boards and is commonly used for prototyping and applications requiring space efficiency.

Pinout

The MCP4821-E/SN is a single-channel 12-bit digital-to-analog converter (DAC) from Microchip Technology. It has a total of 8 pins, with the following functions:
1. VDD (Pin 1): Supply voltage, typically +2.7V to +5.5V.
2. VOUT (Pin 2): Analog output voltage.
3. AGND (Pin 3): Analog ground reference.
4. LDAC (Pin 4): Load DAC, used to load the output register with data from the input register.
5. SCK (Pin 5): Serial clock input for SPI communication.
6. SDI (Pin 6): Serial data input for receiving digital input data.
7. CS (Pin 7): Chip select, activates the DAC for communication.
8. DGND (Pin 8): Digital ground reference.
The MCP4821-E/SN operates using SPI protocol for data transfer and is commonly used in applications such as signal generation, waveform synthesis, and control systems.

Manufacturer

The MCP4821-E/SN is manufactured by Microchip Technology Inc., a well-established semiconductor company headquartered in Chandler, Arizona. Founded in 1989, Microchip specializes in designing and manufacturing microcontrollers, memory products, and various analog and interface components. The company is known for its expertise in embedded control solutions and provides a wide range of products for various applications, including automotive, industrial, and consumer electronics. The MCP4821 is a 12-bit Digital-to-Analog Converter (DAC) that is commonly used in applications requiring precision signal conversion. Microchip is recognized for its commitment to innovation, quality, and customer support within the electronics industry.

Application

The MCP4821-E/SN is a 12-bit digital-to-analog converter (DAC) used in various applications including audio processing, waveform generation, sensor signal conditioning, and programmable power supplies. It is suitable for embedded systems, industrial control, and communication systems where precise voltage output is required. Additionally, it's utilized in test equipment and analog control systems for converting digital signals to analog voltages.

Equivalent

The MCP4821-E/SN is a dual 12-bit digital-to-analog converter (DAC). Equivalent products include the following:
1. MCP4725 - 12-bit single DAC with I2C interface.
2. AD5320 - Dual 12-bit DAC with serial interface.
3. LTC2640 - Dual 12-bit DAC with I2C or SPI.
4. DAC7578 - Quad 12-bit DAC with SPI interface.
These alternatives may vary in features such as communication interface and number of channels. Always check specifications for compatibility with your application.

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