Datasheet

LM185-1.2-N, LM285-1.2-N, LM385-1.2-N
SNVS742E –JANUARY 2000–REVISED APRIL 2013 www.ti.com
METER THERMOMETERS
Calibration
1. Short LM385-1.2-N, adjust R3 for I
OUT
= temp at 1μA/°K
2. Remove short, adjust R2 for correct reading in centigrade
†I
Q
at 1.3V≃500μA
I
Q
at 1.6V≃2.4mA
Figure 21. 0°C−100°C Thermometer
Figure 22.
*2N3638 or 2N2907 select for inverse H
FE
≃ 5
†Select for operation at 1.3V
‡I
Q
≃ 600μA to 900μA
Figure 23. Lower Power Thermometer
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