MCP48FVBXX 8-/10-/12-Bit Single/Dual Voltage Output Volatile Digital-to-Analog Converters with SPI Interface Features Package Types MCP48FVBX1 Operating Voltage Range: MSOP - 2.7V to 5.5V - full specifications Single - 1.8V to 2.7V - reduced device specifications V SDI DD 1 10 Output Voltage Resolutions: 9 SCK 2 CS SDO V 3 8 - 8-bit: MCP48FVB0X (256 Steps) REF0 V 7 V 4 SS OUT0 - 10-bit: MCP48FVB1X (1024 Steps) NC 5 6 LAT0/HVC - 12-bit: MCP48FVB2X (4096 Steps) Rail-to-Rail Output MCP48FVBX2 MSOP Fast Settling Time of 7.8 s (typical) Dual DAC Voltage Reference Source Options: V DD SDI 1 10 - Device V DD CS 9 SCK 2 (1) -External V pin (buffered or unbuffered) SDO V 3 8 REF REF V 4 7 V SS - Internal Band Gap (1.22V typical) OUT0 (1) V 56 OUT1 LAT/HVC Output Gain Options: Note 1: Associated with both DAC0 and DAC1 - Unity (1x) -2x General Description Power-on/Brown-out Reset Protection Power-Down Modes: The MCP48FVBXX are Single- and Dual-channel 8-bit, - Disconnects output buffer (High Impedance) 10-bit, and 12-bit buffered voltage output Digital-to-Analog Converters (DAC) with volatile - Selection of V pull-down resistors OUT memory and an SPI serial interface. (100 k or 1 k) Low Power Consumption: The V pin, the device V or the internal band gap REF DD voltage can be selected as the DACs reference - Normal operation: <180 A (Single), voltage. When V is selected, V is connected 380 A (Dual) DD DD internally to the DAC reference circuit. When the V REF - Power-down operation: 650 nA typical pin is used, the user can select the output buffers gain SPI Interface: to be 1 or 2. When the gain is 2, the V pin voltage REF - Supports 00 and 11 modes should be limited to a maximum of V /2. DD - Up to 20 MHz writes and 10 MHz reads These devices have an SPI-compatible serial interface. - Input buffers support interfacing to Write commands are supported up to 20 MHz while low-voltage digital devices read commands are supported up to 10 MHz. Package Types: 10-lead MSOP Extended Temperature Range: -40C to +125C Applications Set Point or Offset Trimming Sensor Calibration Low-Power Portable Instrumentation PC Peripherals Data Acquisition Systems Motor Control 2015 Microchip Technology Inc. DS20005466A-page 1MCP48FVBXX MCP48FVBX1 Device Block Diagram (Single-Channel Output) V DD Power-up/ Brown-out Control V SS Memory (32x16) SDI DAC0 (Vol) SPI Serial Interface Module SDO VREF (Vol) and Power-down (Vol) SCK Control Logic Gain (Vol) CS Status (Vol) VREF1:VREF0 V and PD1:PD0 DD Gain PD1:PD0 and V VREF1:VREF0 BG Band Gap Op (1.22V) Amp V OUT0 PD1:PD0 V + REF0 (1) - V PD1:PD0 SS V DD VREF1:VREF0 LAT0/HVC Note 1: If Internal Band Gap is selected, this buffer has a 2x gain. If the G bit = 1, this is a total gain of 4. DS20005466A-page 2 2015 Microchip Technology Inc. Resistor Ladder 1k 100 k