MCP1501 High-Precision Buffered Voltage Reference Features General Description • Maximum Temperature Coefficient: 50 ppm/°C from –40°C to +125°C • Initial Accuracy: 0.1% • Operating Temperature Range: –40 to +125°C • Low Typical Operating Current: 140 μA • Line Regulation: 50 ppm/V Maximum • Load Regulation: 40 ppm/mA Maximum • 8 Voltage Variants Available: -1.024V -1.250V -1.800V -2.048V -2.500V -3.000V -3.300V -4.096V • Output Noise: 27 µVRMS, 10 Hz to 10 kHz (1.024V) The MCP1501 is a buffered voltage reference capable of sinking and sourcing 20 mA of current. The voltage reference is a low-drift bandgap-based reference. The bandgap uses chopper-based amplifiers, effectively reducing the drift to zero. The MCP1501 is available in the following packages: • 6-Lead SOT-23 • 8-Lead SOIC • 8-Lead 2 mm x 2 mm WDFN Package Types MCP1501 6-Lead SOT-23 OUT 1 6 VDD GND 2 5 GND GND 3 4 SHDN Applications • • • • • Precision Data Acquisition Systems High-Resolution Data Converters Medical Equipment Applications Industrial Controls Battery-Powered Devices MCP1501 8-Lead SOIC VDD 1 8 FEEDBACK GND 2 7 OUT SHDN 3 6 GND GND 4 5 GND MCP1501 2x2 WDFN* VDD 1 GND 2 SHDN 3 GND 4 EP 9 8 FEEDBACK 7 OUT 6 GND 5 GND *Includes Exposed Thermal Pad (EP). See Table 3-1 2015-2017 Microchip Technology Inc. DS20005474E-page 1