LT1634 Micropower Precision Shunt Voltage Reference FeaTuresDescripTion n Initial Voltage Accuracy: 0.05% The LT®1634 is a micropower, precision, shunt voltage n Low Operating Current: 10µA reference. The bandgap reference uses trimmed precision n Low Drift: 10ppm/°C Max thin film resistors to achieve 0.05% initial voltage accura- n Less Than 1Ω Dynamic Impedance cy. Improved curvature correction technique guarantees n Both Commercial and Industrial Temperature Range 10ppm/°C maximum temperature drift. Advances in Parts Are Available design, processing and packaging techniques guarantee n Available in 1.25V, 2.5V, 4.096V and 5V in SO-8 10µA operation and low temperature cycling hysteresis. and TO-92 Packages The LT1634 does not require an output compensation n 1.25V and 2.5V Available in MSOP Package capacitor, but is stable with capacitive loads. Low dynamic impedance makes the LT1634 reference easy to use from applicaTions unregulated supplies. The LT1634 reference can be used as a high performance n Portable Meters upgrade to the LM185/LM385, LT1004 and LT1034 where n Precision Regulators lower power and guaranteed temperature drift is n A/D and D/A Converters required. n Calibrators L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTionSuper Accurate ±4.096V Output ReferencesTemperature Drift 5V 45k + 2.0 I V R = 10µA LT1634-4.096 LT1495 OUT V 4.096V 1.5 OUT = 1.25V – 1.0 –5V 5V 0.5 4 0 5 LTC®1043 6 –0.5 IS = 200µA OUTPUT ACCURACY 1µF –1.0 BETTER THAN 0.075% AT ±500µA OUTPUT REVERSE VOLTAGE CHANGE (mV) 15 18 –1.5 17 –2.0–40 –20 0 20 40 60 80 100 –5V TEMPERATURE (°C) 5V 1634 TA02 – LT1495 VOUT –4.096V + 1µF –5V 1634 TA01 1634ff For more information www.linear.com/LT1634 1 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Applications Information Typical Application Related Parts
