MCP4821 Single-Channel DAC
An 8-bit, 10-bit, and 12-bit DAC with SPI Interface
- Voltage Output: 12-Bit
- Supply Voltage: 2.7V to 5.5V
- Internal Voltage Reference: 2.048V
- Operating Temperature Range: -40°C to +125°C
- Package Options: PDIP, SOIC, MSOP, DFN
Features:
- Rail-to-Rail Output
- SPI Interface with 20 MHz Clock
- Simultaneous Latching with LDAC Pin
- Fast Settling Time: 4.5 µs
The MCP4821 devices are single-channel DACs available in 8-bit, 10-bit, and 12-bit options. They operate from a 2.7V to 5.5V supply and feature an SPI compatible interface. These DACs come with a high precision internal voltage reference of 2.048V, allowing the user to configure the full-scale range to be 2.048V or 4.096V through the Gain Selection Option bit.
Additionally, the devices can be operated in Active or Shutdown mode, with most internal circuits turned off in Shutdown mode for power savings. The MCP4821 includes double-buffered registers for a synchronous DAC output update and a Power-on Reset (POR) circuit for reliable power-up.
Specifications:
- VDD: 6.5V
- Voltage Range: VSS – 0.3V to VDD + 0.3V
- Storage Temperature: -65°C to +150°C
- Operating Temperature: -55°C to +125°C
- Soldering Temperature: +300°C (10 seconds)
- ESD Protection: 4 kV
- Maximum Junction Temperature: 150°C
- Input Pins Current: ±2 mA
The MCP4821 is designed for applications where high accuracy and low noise performance are essential, such as in consumer and industrial settings that require signal calibration or compensation. With its resistive string architecture, the MCP4821 offers advantages like low DNL error and low temperature coefficient, ensuring fast settling time and extended temperature range operation.
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* Images are for illustration only; actual product may vary.