MCP4821T-E/MS – 12-bit 1-Channel DAC with Internal Voltage Reference (MSOP-8)

Description

The MCP4821T-E/MS is a high-precision, 12-bit buffered voltage output Digital-to-Analog Converter (DAC). Engineered for performance and versatility, it operates from a single supply voltage ranging from 2.7V to 5.5V. This device features a high-precision internal voltage reference, allowing users to configure the full-scale range to either 2.048V or 4.096V via a gain selection bit.

Designed with a resistive string architecture, the MCP4821 offers excellent linearity, low DNL error, and a fast settling time of just 4.5 µs. It includes a double-buffered register system that enables synchronous updates of the DAC output using the LDAC pin. For power-sensitive applications, the device features a flexible shutdown mode that disables internal circuits, including the output amplifier, to significantly reduce power consumption.

The device communicates via an SPI-compatible serial interface supporting clock speeds up to 20 MHz, ensuring seamless integration with modern microcontrollers. Its rail-to-rail output capability and small form factor make it an ideal solution for precision voltage control, sensor calibration, and battery-powered portable instrumentation.

Note: Product images are for reference only. The actual product may vary in appearance or manufacturer marking depending on stock availability.

Features

• 12-bit resolution with single-channel buffered voltage output
• Integrated high-precision 2.048V internal voltage reference
• Rail-to-Rail output for maximum dynamic range
• SPI interface supporting up to 20 MHz clock speed
• Selectable unity or 2x gain options
• Double-buffered registers for synchronous output updates via LDAC pin
• Low-power shutdown mode for battery-operated devices
• Fast settling time of 4.5 µs

Benefits

• High-accuracy voltage generation for calibration and control
• Wide supply range supports diverse design requirements
• Integrated reference saves PCB space and BOM costs
• Fast conversion speed is suitable for dynamic signal generation
• Robust protection and power-saving modes enhance reliability
• Easy interface with various microcontrollers and digital logic

Applications

• Precision SetPoint and Offset Trimming
• Sensor Calibration and Signal Conditioning
• Portable Battery-Powered Instrumentation
• Optical Communication Device Calibration
• Precision Voltage Reference Generation
• Industrial Automation and Control Systems
• Consumer Electronics Hardware

Package Includes

• 1 x MCP4821T-E/MS 12-bit Digital-to-Analog Converter (DAC) IC

Specifications