Datasheet LM185-1.2, LM285-1.2, LM385-1.2 (Texas Instruments) - 10
| Manufacturer | Texas Instruments |
| Description | Micropower Voltage Reference Diode |
| Pages / Page | 28 / 10 — LM185-1.2-N,. LM285-1.2-N. , LM385-1.2-N. www.ti.com. Thermocouple. … |
| 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. Thermocouple. Seebeck. Voltage. Type. Coefficient. (Ω). Across R1. Across R2. (μV/°C)
Model Line for this Datasheet
Text Version of Document
LM185-1.2-N, LM285-1.2-N , LM385-1.2-N
SNVS742E – JANUARY 2000 – REVISED APRIL 2013
www.ti.com Thermocouple Seebeck R1 R2 Voltage Voltage Type Coefficient (Ω) (Ω) Across R1 Across R2 (μV/°C) @ 25°C (mV) (mV)
J 52.3 523 1.24k 15.60 14.32 T 42.8 432 1k 12.77 11.78 K 40.8 412 953Ω 12.17 11.17 S 6.4 63.4 150Ω 1.908 1.766 Typical supply current 50μA
Calibration
1. Adjust R1 so that V1 = temp at 1mV/°K 2. Adjust V2 to 273.2mV †IQ for 1.3V to 1.6V battery volt- age = 50μA to 150μA
Figure 26. Centigrade Thermometer
10 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated 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
www.ti.com Thermocouple Seebeck R1 R2 Voltage Voltage Type Coefficient (Ω) (Ω) Across R1 Across R2 (μV/°C) @ 25°C (mV) (mV)
J 52.3 523 1.24k 15.60 14.32 T 42.8 432 1k 12.77 11.78 K 40.8 412 953Ω 12.17 11.17 S 6.4 63.4 150Ω 1.908 1.766 Typical supply current 50μA
Calibration
1. Adjust R1 so that V1 = temp at 1mV/°K 2. Adjust V2 to 273.2mV †IQ for 1.3V to 1.6V battery volt- age = 50μA to 150μA
Figure 26. Centigrade Thermometer
10 Submit Documentation Feedback Copyright © 2000–2013, Texas Instruments Incorporated 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
