MCP47FXBX4/8 8/10/12-Bit Quad/Octal Voltage Output, 6 LSb INL Digital-to-Analog Converters with IC Interface Features Package Types Operating Voltage Range: - 2.7V to 5.5V - Full specifications - 1.8V to 2.7V - Reduced device specifications Output Voltage Resolutions: A0 1 15 A1 MCP47FXBX4 - 8-bit: MCP47FXB0X (256 steps) V V REF0 2 14 REF1 20-Lead VQFN - 10-bit: MCP47FXB1X (1024 steps) (1) V V OUT0 3 13 OUT1 21 EP - 12-bit: MCP47FXB2X (4096 steps) 5x5 mm Quad V V 4 12 OUT2 OUT3 Rail-to-Rail Output NC 5 11 NC Fast Settling Time of 7.8 s (Typical) DAC Voltage Reference Source Options: - Device V DD -External V pin (buffered or unbuffered) LAT1 1 20 LAT0/HVC REF V DD 2 19 SDA - Internal band gap (1.22V typical) A0 3 18 SCL Output Gain Options: MCP47FXBX4 V REF0 4 17 A1 -1x (unity) V OUT0 5 16 V 20-Lead TSSOP REF1 - 2x (available when not using internal V as DD V OUT2 6 15 V OUT1 Quad voltage source) NC 7 14 V OUT3 Nonvolatile Memory (EEPROM) Option: NC 8 13 NC V - User-programmed Power-on Reset SS 9 12 NC (POR)/Brown-out Reset (BOR) output setting NC 10 11 NC and device Configuration bits recall - Auto recall of saved DAC register setting - Auto recall of saved device configuration (voltage reference, gain, power-down) Power-on/Brown-out Reset Protection A0 1 15 A1 MCP47FXBX8 Power-Down Modes: V REF0 2 14 V REF1 V - Disconnects output buffer (high-impedance) OUT0 (1) 20-Lead VQFN 3 13 V 21 EP OUT1 V OUT2 - Selection of V pull-down resistors 4 12 V OUT OUT3 5x5 mm Octal (125 k or 1 k ) V 5 11 V OUT4 OUT5 Low-Power Consumption: - Normal operation: < 1 mA (Quad), 1.8 mA (Octal) - Power-Down operation: 680 nA typical LAT1 1 LAT0/HVC 20 - EEPROM write cycle: 2.7 mA maximum V DD 2 19 SDA 2 A0 3 SCL I C Interface: 18 MCP47FXBX8 V 4 A1 REF0 17 - Slave address options: four predefined V 20-Lead TSSOP OUT0 5 16 V REF1 addresses or user-programmable (all 7 bits) V 6 V OUT2 15 OUT1 Octal - Standard (100 kbps), Fast (400 kbps), and V V 7 14 OUT4 OUT3 High-Speed (up to 3.4 Mbps) modes V OUT6 8 13 V OUT5 Package Types: V 9 V SS 12 OUT7 - 20-lead TSSOP 10 NC 11 NC - 20-lead 5 x 5 mm VQFN Note 1: Includes Exposed Thermal Pad (EP) see Extended Temperature Range: -40C to +125C Table 3-1 and Table 3-2. 2020 Microchip Technology Inc. DS20006368A-page 1 NC V V V 6 20 DD 6 20 DD OUT6 V V LAT1 SS 7 19 SS 7 19 LAT1 NC 8 18 LAT0/HVC NC 8 18 LAT0/HVC SDA NC 9 17 NC 9 17 SDA NC SCL 10 16 V 10 16 SCL OUT7MCP47FXBX4/8 This family of devices features WiperLock General Description functionality, which prevents inadvertent changes of The MCP47FXBX4/8 devices are a family of buffered the output value. It uses a high voltage on a specific voltage output Digital-to-Analog Converters (DAC), pin, with dedicated commands, to lock the values that with the following options: are stored in memory. quad or octal output channel configurations The MCP47FXBX4/8 devices communicate with the 2 8/10/12-bit resolution C compatible interface, sup- host controller using an I porting the following data transfer rates: Standard (100 Volatile or nonvolatile user memory kHz), Fast (400 kHz) and High-Speed (1.7 MHz and The quad and octal options differ only by the number of 3.4 MHz). They can only function as slave devices. output channels. The volatile and nonvolatile versions have an identical analog circuit structure. Applications There are three voltage reference sources: the external pin, the devices V or an internal band gap volt- Set Point or Offset Trimming V REF DD age source. Sensor Calibration When the V mode is selected, it is internally con- Low-Power Portable Instrumentation DD nected to the DACs reference circuit. When the exter- PC Peripherals nal V pin is used, the user has the option to select REF Data Acquisition Systems between a gain of 1 and 2 if the Buffered mode is used, Motor Control or the internal buffer can be bypassed entirely in the external V Unbuffered mode. REF In the internal band gap voltage reference mode, the gain can be selected between 2 and 4. MCP47FXBX4/8 DAC Output Channel Block Diagram V DD VRnB:VRnA/PDnB:PDnA PDnB:PDnA V REF PDnB:PDnA VRnB:VRnA Band Gap V GAIN OUT V DD PDnB:PDnA VRnB:VRnA LAT 1k 125 k DS20006368A-page 2 2020 Microchip Technology Inc. Resistor Ladder