Description
The MCP4922-E/SL from Microchip is a high-performance, dual-channel 12-bit Digital-to-Analog Converter (DAC) featuring rail-to-rail voltage output. Designed for flexibility and precision, this device operates from a single supply voltage ranging from 2.7V to 5.5V and utilizes an SPI-compatible serial interface. It includes double-buffered registers that allow for the simultaneous update of both DAC channels using the active-low LDAC pin, making it ideal for applications requiring synchronized output changes.
The MCP4922-E/SL offers sophisticated power management, allowing users to shut down channels individually or globally via the active-low SHDN pin to significantly reduce power consumption. With its Power-On Reset (POR) circuit, fast settling time, and ability to handle external voltage references, this DAC is a robust solution for precision offset trimming, motor control feedback loops, calibration of optical devices, and various industrial control tasks.
Key Features
- Dual 12-Bit Channels: Independent voltage output control for high-resolution applications.
- Rail-to-Rail Output: Maximizes the dynamic range of the output signal.
- SPI Serial Interface: High-speed communication with clock support up to 20MHz.
- Synchronous Updates: Double-buffered registers and LDAC pin allow for simultaneous latching of dual outputs.
- Flexible Power Management: Individual or global channel shutdown modes for energy efficiency.
- Integrated POR: Power-On Reset circuit ensures reliable startup behavior.
- External Reference: Supports external voltage references for customized output scaling.
- Extended Temperature Range: Certified for robust operation from -40°C to +125°C.
Applications
- Set Point/Offset Trimming: Precision adjustment of system parameters.
- Motor Control: Feedback loops and drive signal generation.
- Optical Communication: Calibration and bias control for optical devices.
- Precision Instrumentation: Digitally-controlled multipliers, dividers, and selectable voltage references.
Package Includes
- 1 x MCP4922-E/SL Dual 12-bit Digital-to-Analog Converter (SOIC-14)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device Model | MCP4922-E/SL |
| Resolution | 12-bit |
| Data Interface | Serial (SPI) |
| Supply Voltage | 2.7V to 5.5V |
| Number of Pins | 14 Pins (SOIC) |
| Operating Temp | -40°C to +125°C |
| Shipping Weight | 0.005 kg |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete electrical characteristics, register maps, and application circuit diagrams, please refer to the official Microchip MCP4922 datasheet.
