Microchip Technology MCP4921 Digital-to-Analog Converters
Microchip Technology MCP4921 Digital-to-Analog Converters (DACs) are 2.7V to 5.5V low-power, low DNL,12-bit DACs with SPI interface with optional 2x buffered output. These DACs utilize a resistive string architecture with its inherent advantages of low DNL error, low-ratio metric temperatures coefficient, and fast settling time. The MCP4921 converters incorporate a Power-on Reset (POR) circuit to ensure reliable power-up. These MCP4921 DACs come in PDIP, SOIC, MSOP, and TSSOP packages. These digital-to-analog converters offer high-accuracy and low-noise performance for industrial applications where calibrations of signals are required.Features
- 12-bit resolution
- ±0.2 LSB DNL (typical)
- ±2 LSB INL (typical)
- Single/dual-channel
- Rail-to-rail output
- SPI™ interface with 20MHz clock support
- Simultaneous latching of the dual DACs w/LDAC
- Fast setting time of 4.5μs
- Selectable unity or 2x gin output
- 450kHz multiplier mode
- External VREF input
- 2.7V to 5.5V single-supply operation
- -40°C to +125°C operating temperature range
Applications
- Setpoint or offset trimming
- Sensor calibration
- Digitally-controlled multiplier/divider
- Portable instrumentation (battery-powered)
- Motor feedback loop control
Block Diagram
Published: 2019-12-30
| Updated: 2023-06-13
