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MCP4921- 12-Bit DAC with SPI Interface

MCP4921- 12-Bit DAC with SPI Interface

MCP4921-E/P - 12-Bit DAC with SPI Interface

MCP4921 device is a single channel 12-bit buffered voltage output Digital-to-Analog Converters (DACs). The device operates from a single 2.7V to 5.5V supply with an SPI compatible Serial Peripheral Interface. Users can configure full-scale range of the device to be VREF or 2*VREF by setting the gain selection option bit (gain of 1 of 2).

By setting the Configuration Register bit user can shut down the device. In Shutdown mode, most of the internal circuits are turned off for power savings, and the output amplifier is configured to present a known high resistance output load.

MCP4921 has got double-buffered registers, allowing synchronous updates of the DAC output using the LDAC pin. It has also got incorporated a Power-on Reset (POR) circuit to ensure reliable powerup.

The devices utilize a resistive string architecture, with its inherent advantages of low Differential Non-Linearity (DNL) error and fast settling time. The device provides high accuracy and low noise performance for a range of consumer and industrial applications where calibration or compensation of signals (such as temperature, pressure and humidity) are required.


• 12-Bit Resolution

• ±0.2 LSB DNL (typ)

• ±2 LSB INL (typ)

• Single or Dual Channel

• Rail-to-Rail Output

• SPI™ Interface with 20 MHz Clock Support

• Simultaneous Latching of the Dual DACs w/LDAC

• Fast Settling Time of 4.5 µs

• Selectable Unity or 2x Gain Output

• 450 kHz Multiplier Mode

• External VREF Input

• 2.7V to 5.5V Single-Supply Operation

• Extended Temperature Range: -40°C to +125°C


• Set Point or Offset Trimming

• Sensor Calibration

• Digitally-Controlled Multiplier/Divider

• Portable Instrumentation (Battery-Powered)

• Motor Feedback Loop Control



 Resolution (Bits): 12bit

 Input Channel Type: Serial

 Data Interface: 3-Wire, Serial

 Supply Voltage Range - Analogue: 2.7V to 5.5V

 Supply Current: 175µA

 Digital IC Case Style: DIP

 No. of Pins: 8

 Operating Temperature Range: -40°C to +125°C

 SVHC: No SVHC (18-Jun-2012)

 Base Number: 4921

 Conversion Time: 4.5µs

 IC Case Style: DIP

 IC Generic Number: MCP4921

 Input Type: Serial

 Linearity Error ADC / DAC +: 0.25LSB

 Linearity Error ADC / DAC -: 0.25LSB

 No. of Bits: 12

 No. of Channels: 1

 No. of DACs: 1

 Operating Temperature Max: 125°C

 Operating Temperature Min: -40°C

 Output Type: Rail-to-Rail

 Package / Case: DIP

 Settling Time: 4.5µs

 Supply Voltage Max: 5.5V

 Supply Voltage Min: 2.7V

 Supply Voltage Range: 2.7V to 5.5V

 Termination Type: Through Hole

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  • Views: 887
  • Product Code: MCP4921- 12-Bit DAC with SPI Interface
  • Availability: In Stock
  • Rs150.00

Tags: mcp4921- 12-bit dac with spi interface, mpc, 4921, 12, bit, delta, sigma, d to a, converter, dac, spi, ic, semiconductor

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