Product Summary

The LM399H is a precision shunt reference. It features excellent temperature stability over a wide range of voltage,temperature and operating current conditions. A stabilizing heater is incorporated with the active zener on a monolithic substrate which nearly eliminates changes in voltage with temperature. The subsurface zener of LM399H operates over a current range of 0.5 mA to 10 mA, and offers minimal noise and excellent long term stability. The applications of the LM399H include precision voltage reference for multimeters, calibration equipment voltage standards, laboratory measurement equipment, industrial monitor/control instruments, high accuracy data converters.

Parametrics

LM399H absolute maximum ratings: (1)temperature stabilizer: 40V; (2)reverse breakdown current: 20mA; (3)forward current: 1mA; (4)reference to substrate voltagethe,the symbol is VRS,rating is -0.1V;(5):the parameter is operating temperature range: 0℃ to 70℃; (6)storage temperature range: -65℃ to 150℃; (7)lead temperature (soldering,10 sec): 300℃.

Features

LM399H features: (1)6.95V shunt reference; (2)guaranteed 0.5ppm/℃ temperature coeffi cient; (3)guaranteed 1Ω maximum dynamic impedance; (4)guaranteed 20μVRMS maximum noise; (5)guaranteed initial tolerance of 2%; (6)wide operating current range.

Diagrams

LM399H circuit diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LM399H#PBF
LM399H#PBF

IC VREF SHUNT PREC 6.95V TO-46-4
Data Sheet
0-1: $5.95
1-25: $3.98
25-100: $3.28
LM399H/NOPB
LM399H/NOPB

IC VREF SHUNT PREC 6.95V TO-46-4
Data Sheet
Negotiable 
LM399H
LM399H

IC VREF SHUNT PREC 6.95V TO-46-4
Data Sheet
0-1: $4.76
1-25: $3.57
25-100: $3.28