Datasheet LM185-1.2, LM285-1.2, LM385-1.2 (Texas Instruments) - 8

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 IOUT= temp at 1μA/°K 2. Remove short, adjust R2 for correct reading in centigrade †IQ at 1.3V≃500μA IQ at 1.6V≃2.4mA
Figure 21. 0°C−100°C Thermometer Figure 22.
*2N3638 or 2N2907 select for inverse HFE ≃ 5 †Select for operation at 1.3V ‡IQ ≃ 600μA to 900μA
Figure 23. Lower Power Thermometer
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