ZRT040

ZRT040 4.01V LOW POWER PRECISION REFERENCE SOURCE Description The ZRT040 is a monolithic integrated circuit providing a precise stable reference voltage of 4.01V at 500μA. The circuit features a knee current of 150μA and operation over a wide range of temperatures and currents. The ZRT040 is available in a SOT223 package for surface mount applications. This device offers a trim facility whereby the output voltage can be adjusted as shown in the schematic diagram. This facility is used when compensating for system errors or setting the reference output to a particular value. When the trim facility is not used, the pin should be left open circuit. Pin Assignments SOT223 TRIM 1 GND 2 4 VR 3 Top View (Pin 4 floating or connected to pin 2) Features Trimmable output Excellent temperature stability Low output noise figure -40 to 85°C operating temperature range 1% initial voltage tolerance No external stabilizing capacitor required in most cases Low slo...