link to page 8 link to page 9 link to page 9 link to page 9 link to page 9 ADR510PRECISE NEGATIVE VOLTAGE REFERENCE Because the ADR510 characteristics resemble those of a Zener The ADR510 is suitable for use in applications where a precise diode, the cathode shown in Figure 14 is 1.0 V higher with negative voltage reference is desired, including the application respect to the anode (V+ with respect to V− on the ADR510 detailed in Figure 13. package). Because the cathode of the ADR510 is tied to ground, the anode must be −1.0 V. Figure 14 shows the ADR510 configured to provide an output of −1.0 V. R1 in Figure 14 should be chosen so that 100 μA to 10 mA is provided to properly bias the ADR510. + 1 − − ( V − ) ADR510 R1 DD = (5) – I –1.0V The R1 resistor should be chosen so that power dissipation is at IR1 a minimum. An ideal resistor value can be determined through 4 01 0- –V manipulation of Equation 5. DD 27 03 Figure 14. Precise −1.0 V Reference Configuration Rev. B | Page 9 of 12 Document Outline FEATURES APPLICATIONS PIN CONFIGURATION GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS PARAMETER DEFINITIONS TEMPERATURE COEFFICIENT THERMAL HYSTERESIS APPLICATIONS INFORMATION ADJUSTABLE PRECISION VOLTAGE SOURCE OUTPUT VOLTAGE TRIM USING THE ADR510 WITH PRECISION DATA CONVERTERS PRECISE NEGATIVE VOLTAGE REFERENCE OUTLINE DIMENSIONS ORDERING GUIDE
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