LM45CIM3NOPB;LM45BIM3NOPB;LM45CIM3XNOPB;LM45BIM3XNOPB;中文规格书,Datasheet资料.pdfVIP

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LM45CIM3NOPB;LM45BIM3NOPB;LM45CIM3XNOPB;LM45BIM3XNOPB;中文规格书,Datasheet资料.pdf

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LM45CIM3NOPB;LM45BIM3NOPB;LM45CIM3XNOPB;LM45BIM3XNOPB;中文规格书,Datasheet资料

LM45 LM45 SOT-23 Precision Centigrade Temperature Sensors Literature Number: SNIS117B / LM45 SOT-23 Precision Centigrade Temperature Sensors General Description The LM45 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM45 does not re- quire any external calibration or trimming to provide accura- cies of ±2?C at room temperature and ±3?C over a full ?20 to +100?C temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM45’s low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with a single power supply, or with plus and minus supplies. As it draws only 120 μA from its supply, it has very low self-heating, less than 0.2?C in still air. The LM45 is rated to operate over a ?20? to +100?C temperature range. Applications n Battery Management n FAX Machines n Printers n Portable Medical Instruments n HVAC n Power Supply Modules n Disk Drives n Computers n Automotive Features n Calibrated directly in ? Celsius (Centigrade) n Linear + 10.0 mV/?C scale factor n ±3?C accuracy guaranteed n Rated for full ?20? to +100?C range n Suitable for remote applications n Low cost due to wafer-level trimming n Operates from 4.0V to 10V n Less than 120 μA current drain n Low self-heating, 0.20?C in still air n Nonlinearity only ±0.8?C max over temp n Low impedance output, 20? for 1 mA load Connection Diagram SOT-23Top View See NS Package Number mf03a Order Device Number Top Mark Supplied As LM45BIM3 T4B 1000 Units on Tape and Reel LM45BIM3X T4B 3000 Units on Tape and Reel LM45CIM3 T4C 1000 Units on Tape and Reel LM45CIM3X T4C 3000 Units on Tape and Reel August 2005 LM 45 S O T-23 P recision C entigrade Tem perature S ensors ? 2005 National Semiconductor Corporation DS011754 / Typical ApplicationsFIGURE 1. Basic Centigrade Temperature