Datasheet LM185-1.2, LM285-1.2, LM385-1.2 (Texas Instruments) - 9
| Manufacturer | Texas Instruments |
| Description | Micropower Voltage Reference Diode |
| Pages / Page | 28 / 9 — LM185-1.2-N. , LM285-1.2-N,. LM385-1.2-N. www.ti.com. Calibration. Figure … |
| Revision | E |
| File Format / Size | PDF / 1.5 Mb |
| Document Language | English |
LM185-1.2-N. , LM285-1.2-N,. LM385-1.2-N. www.ti.com. Calibration. Figure 24. 0°F−50°F Thermometer. Adjustment Procedure
Model Line for this Datasheet
Text Version of Document
LM185-1.2-N , LM285-1.2-N, LM385-1.2-N www.ti.com
SNVS742E – JANUARY 2000 – REVISED APRIL 2013
Calibration
1. Short LM385-1.2-N, adjust R3 for IOUT= temp at 1.8μA/°K 2. Remove short, adjust R2 for correct reading in °F
Figure 24. 0°F−50°F Thermometer Adjustment Procedure
1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature multiplied by the thermocouple Seebeck coefficient. 2. Adjust zero ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied by 273.2.
Figure 25. Micropower Thermocouple Cold Junction Compensator
Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM185-1.2-N LM285-1.2-N LM385-1.2-N Document Outline FEATURES DESCRIPTION CONNECTION DIAGRAM ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS THERMAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATIONS METER THERMOMETERS SCHEMATIC DIAGRAM Revision History
SNVS742E – JANUARY 2000 – REVISED APRIL 2013
Calibration
1. Short LM385-1.2-N, adjust R3 for IOUT= temp at 1.8μA/°K 2. Remove short, adjust R2 for correct reading in °F
Figure 24. 0°F−50°F Thermometer Adjustment Procedure
1. Adjust TC ADJ pot until voltage across R1 equals Kelvin temperature multiplied by the thermocouple Seebeck coefficient. 2. Adjust zero ADJ pot until voltage across R2 equals the thermocouple Seebeck coefficient multiplied by 273.2.
Figure 25. Micropower Thermocouple Cold Junction Compensator
Copyright © 2000–2013, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: LM185-1.2-N LM285-1.2-N LM385-1.2-N Document Outline FEATURES DESCRIPTION CONNECTION DIAGRAM ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS THERMAL CHARACTERISTICS TYPICAL PERFORMANCE CHARACTERISTICS TYPICAL APPLICATIONS METER THERMOMETERS SCHEMATIC DIAGRAM Revision History
