LM45CIM3/NOPB National Semiconductor, LM45CIM3/NOPB Datasheet
LM45CIM3/NOPB
Specifications of LM45CIM3/NOPB
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LM45CIM3/NOPB Summary of contents
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... LM45 is rated to operate over a −20˚ to +100˚C temperature range. Connection Diagram Order Number LM45BIM3 LM45BIM3X LM45CIM3 LM45CIM3X © 2005 National Semiconductor Corporation Applications n Battery Management n FAX Machines n Printers n Portable Medical Instruments ± 3˚C over a full − HVAC n Power Supply Modules ...
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... Choose R = −V /50 µ (10 mV/˚C x Temp ˚C) OUT V = +1,000 mV at +100˚C OUT = +250 mV at +25˚C = −200 mV at −20˚C www.national.com 01175403 FIGURE 1. Basic Centigrade Temperature Sensor (+2.5˚C to +100˚C) 01175404 FIGURE 2. Full-Range Centigrade Temperature Sensor (−20˚C to +100˚C) 2 ...
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... Note 9: Quiescent current is measured using the circuit of Figure 1. Note 10: For best long-term stability, any precision circuit will give best results if the unit is aged at a warm temperature, and/or temperature cycled for at least 46 hours before long-term life test begins. This is especially true when a small (Surface-Mount) part is wave-soldered; allow time for stress relaxation to occur. ...
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... Thermal Response in Still Air with Heat Sink (Figure 3) Start-Up Voltage vs Temperature www.national.com To generate these curves the LM45 was mounted to a printed Thermal Time Constant 01175424 01175426 01175428 4 01175425 Thermal Response in Stirred Oil Bath with Heat Sink 01175427 Quiescent Current vs Temperature (In Circuit of Figure 1) 01175429 ...
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... Typical Performance Characteristics circuit board as shown in Figure 3. (Continued) Quiescent Current vs Temperature (In Circuit of Figure 2) Noise Voltage Start-Up Response To generate these curves the LM45 was mounted to a printed Accuracy vs Temperature 01175430 01175432 01175434 5 (Guaranteed) 01175431 Supply Voltage vs Supply Current 01175433 www.national.com ...
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... This presumes that the ambient air temperature is almost the same as the surface temperature; if the air temperature were much higher or lower than the surface temperature, the actual temperature of the LM45 die would interme- diate temperature between the surface temperature and the air temperature. ...
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... Figure 5, are often useful. FIGURE 4. LM45 with Decoupling from Capacitive Load FIGURE 5. LM45 with R-C Damper 01175412 FIGURE 6. Temperature Sensor, Single Supply, −20˚C to +100˚C FIGURE 7. 4-to-20 mA Current Source (0˚C to +100˚C) 01175408 01175409 FIGURE 8 ...
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... Typical Applications FIGURE 11. Temperature To Digital Converter (Serial Output) (+128˚C Full Scale) FIGURE 12. Temperature To Digital Converter (Parallel TRI-STATE Standard Data Bus to µP Interface) (128˚C Full Scale) www.national.com (Continued) FIGURE 10. Expanded Scale Thermometer (50˚ to 80˚ Fahrenheit, for Example Shown) 8 01175417 ...
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... R for V =3.075V B B -Trim R for V =1.955V C C -Trim R for V =0.075V + 100mV/˚ ambient -Example, V =2.275V at 22˚C A FIGURE 13. Bar-Graph Temperature Display (Dot Mode) FIGURE 14. LM45 With Voltage-To-Frequency Converter And Isolated Output (2.5˚C to +100˚ 1000 Hz) 9 01175420 01175421 www.national.com ...
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Block Diagram www.national.com 01175422 10 ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...