12-Bit Dual Voltage Output Digital-to-Analog Converter
MCP4802/4812/4822
8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with Internal VREF and SPI Interface
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Description
MCP4802/4812/4822
8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with Internal VREF and SPI Interface
Features
MCP4802: Dual 8-Bit Voltage Output DAC MCP4812: Dual 10-Bit Voltage Output DAC MCP4822: Dual 12-Bit Voltage Output DAC Rail-to-Rail Output SPI Interface with 20 MHz Clock Support Simultaneous Latching of the Dual DACs
with LDAC pin Fast Settling Time of 4.5 µs Selectable Unity or 2x Gain Output 2.048V Internal Voltage Reference 50 ppm/°C VREF Temperature Coefficient 2.7V to 5.5V Single-Supply Operation Extended Temperature Range: -40°C to +125°C
Applications
Set Point or Offset Trimming Sensor Calibration Precision Selectable Voltage Reference Portable Instrumentation (Battery-Powered) Calibration of Optical Communication Devices
Related Products(1)
P/N
DAC
No. of
Resolution Channels
Voltage Reference
(VREF)
MCP4801
8
1
MCP4811
10
1
MCP4821
12
MCP4802
8
1
Internal
2
(2.048V)
MCP4812
10
2
MCP4822
12
2
MCP4901
8
1
MCP4911
10
1
MCP4921
12
MCP4902
8
1 External
2
MCP4912
10
2
MCP4922
12
2
Note 1: The products listed here have similar AC/DC performances.
Description
The MCP4802/4812/4822 devices are dual 8-bit, 10-bit and 12-bit buffered voltage output Digital-to-Analog Converters (DACs), respectively. The devices operate from a single 2.7V to 5.5V supply with SPI compatible Serial Peripheral Interface.
The devices have a high precision internal voltage reference (VREF = 2.048V)....
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