REF19x系列 电压基准源.pdf

Precision Micropower, Low Dropout Voltage References Data Sheet REF19x Series FEATURES TEST PINS Temperature coefficient: 5 ppm/°C maximum Test Pin 1 and Test Pin 5 are reserved for in-package Zener zap. High output current: 30 mA To achieve the highest level of accuracy at the output, the Zener Low supply current: 45 μA maximum zapping technique is used to trim the output voltage. Because Initial accuracy: ±2 mV maximum1 each unit may require a different amount of adjustment, the Sleep mode: 15 μA maximum resistance value at the test pins varies widely from pin to pin Low dropout voltage and from part to part. The user should leave Pin 1 and Pin 5 Load regulation: 4 ppm/mA unconnected. Line regulation: 4 ppm/V TP 1 8 NC Short-circuit protection REF19x VS 2 SERIES 7 NC