Description
The MCP4922 from Microchip is a high-performance, dual-channel 12-bit Digital-to-Analog Converter (DAC) that provides rail-to-rail voltage output. It is engineered for applications where precision, speed, and synchronized output updates are critical. By utilizing an SPI-compatible serial interface, the MCP4922 allows for efficient communication and configuration, making it an excellent choice for modern digital systems.
This DAC features double-buffered registers and an active-low LDAC pin, enabling the simultaneous update of both channels, which is essential for multi-phase control or synchronized signal generation. Additionally, the device includes a Power-On Reset (POR) circuit and a low-power shutdown mode, providing both reliability and energy efficiency. Housed in a standard 14-pin DIP package, the MCP4922 is perfect for prototyping, educational experiments, and standard through-hole PCB assembly.
Key Features
- Dual 12-Bit Channels: Independent and accurate voltage conversion for two separate signal paths.
- Rail-to-Rail Performance: Ensures the output can swing to the full supply voltage range, maximizing dynamic range.
- SPI Serial Interface: High-speed communication with standard 3-wire interfaces.
- Synchronous Updating: Features a dedicated LDAC pin and double-buffered architecture for simultaneous channel updates.
- Power Management: Integrated shutdown mode for energy-efficient operation in battery-powered designs.
- DIP-14 Package: Robust through-hole design, ideal for breadboards, training kits, and easy maintenance.
Applications
- Signal Generation: Precise control for waveforms, bias voltage generation, and motor control.
- Instrumentation: Digital calibration for sensors, offset adjustment, and programmable gain control.
- Embedded Control: Adding versatile analog output capabilities to microcontroller-based projects.
- Industrial Automation: Reliable voltage output for programmable logic controllers and automation loops.
Package Includes
- 1 x MCP4922 12-Bit Dual Voltage DAC (DIP-14)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device Model | MCP4922 |
| Resolution | 12-bit |
| No. of Channels | 2 |
| Data Interface | SPI |
| Package/Case | DIP-14 |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 1 cm |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete timing diagrams, electrical characteristics, and application circuit diagrams, please refer to the official Microchip MCP4922 datasheet.
