MICROCHIP MCP48FVB12T-E/UN

The MCP48FVBXX are Single- and Dual-channel 8-bit, 10-bit, and 12-bit buffered voltage output Digital-to-Analog Converters (DAC) with volatile memory and an SPI serial interface. The VREF pin, the device VDD or the internal band gap voltage can be selected as the DAC’s reference voltage. When VDD is selected, VDD is connected internally to the DAC reference circuit. When the VREF pin is used, the user can select the output buffer’s gain to be 1 or 2. When the gain is 2, the VREF pin voltage should be limited to a maximum of VDD/2. These devices have an SPI-compatible serial interface. Write commands are supported up to 20 MHz while read commands are supported up to 10 MHz.

• Operating Voltage Range: - 2.7V to 5.5V - full specifications - 1.8V to 2.7V - reduced device specifications
• Output Voltage Resolutions: - 8-bit: MCP48FVB0X (256 Steps) - 10-bit: MCP48FVB1X (1024 Steps) - 12-bit: MCP48FVB2X (4096 Steps)
• Rail-to-Rail Output
• Fast Settling Time of 7.8 µs (typical)
• DAC Voltage Reference Source Options: - Device VDD - External VREF pin (buffered or unbuffered) - Internal Band Gap (1.22V typical)
• Output Gain Options: - Unity (1x) - 2x
• Power-on/Brown-out Reset Protection
• Power-Down Modes: - Disconnects output buffer (High Impedance) - Selection of VOUT pull-down resistors (100 kΩ or 1 kΩ)
• Low Power Consumption: - Normal operation: <180 μA (Single), 380 μA (Dual) - Power-down operation: 650 nA typical
• SPI Interface: - Supports ‘00’ and ‘11’ modes - Up to 20 MHz writes and 10 MHz reads - Input buffers support interfacing to low-voltage digital devices
• Package Types: 10-lead MSOP
• Extended Temperature Range: -40°C to +125°C

• Set Point or Offset Trimming
• Sensor Calibration
• Low-Power Portable Instrumentation
• PC Peripherals
• Data Acquisition Systems
• Motor Control