MCP4821T-E/SN

MCP4821T-E/SN is a 12bit voltage output digital-to-analogue converter with internal VREF and SPI interface. The device operates from a single 2.7V to 5.5V supply with an SPI compatible serial peripheral interface. The device has a high precision internal voltage reference (VREF = 2.048V). The user can configure the full-scale range of the device to be 2.048V or 4.096V by setting the gain selection option bit (gain of 1 of 2). The devices can be operated in active or shutdown mode by setting a Configuration register bit or using the SHDN (active low) pin. In shutdown mode, most of the internal circuits, including the output amplifier, are turned off for power savings, while the amplifier output (VOUT) stage is configured to present a known high resistance output load (500Kohm typical). Application includes set point or offset trimming, sensor calibration, precision selectable voltage reference, portable instrumentation (battery powered), calibration of optical communication devices.

• Rail-to-rail output, SPI interface with 20MHz clock support
• Simultaneous latching of the DAC output with LDAC (active low) pin
• Operating voltage range from 2.7 to 5.5V (VDD = 5V, VSS = 0V, 25°C)
• 2.0V power-on reset threshold typical (VDD = 5V, VSS = 0V, +25°C)
• INL error is ±2LSb typical (VDD = 5V, VSS = 0V, +25°C)
• DNL is ±0.2LSb typical (VDD = 5V, VSS = 0V, +25°C)
• Offset error range from -1 to 1% of FSR (code = 0x000h, VDD = 5V, VSS = 0V, +25°C)
• Gain error is -0.10% of FSR (Code = 0xFFFh, VDD = 5V, VSS = 0V, +25°C)
• Slew rate is 0.55V/µs typical (VDD = 5V, VSS = 0V, +25°C)
• 8 lead SOIC package, extended temperature range from -40°C to +125°C