Rainbow Electronics LM34 - Manual (Page 7)

Typical Applications
Temperature Rise of LM34 Due to Self-Heating (Thermal Resistance)
Conditions TO-46, TO-46, TO-92, TO-92, SO-8 SO-8
No Heat
Sink
Small Heat Fin
(Note 14)
No Heat
Sink
Small Heat Fin
(Note 15)
No Heat
Sink
Small Heat Fin
(Note 15)
Still air 720˚F/W 180˚F/W 324˚F/W 252˚F/W 400˚F/W 200˚F/W
Moving air 180˚F/W 72˚F/W 162˚F/W 126˚F/W 190˚F/W 160˚F/W
Still oil 180˚F/W 72˚F/W 162˚F/W 126˚F/W
Stirred oil 90˚F/W 54˚F/W 81˚F/W 72˚F/W
(Clamped to metal, (43˚F/W) (95˚F/W)
infinite heat sink)
Note 14: Wakefield type 201 or 1" disc of 0.020" sheet brass, soldered to case, or similar.
Note 15: TO-92 and SO-8 packages glued and leads soldered to 1" square of 1/16" printed circuit board with 2 oz copper foil, or similar.
DS006685-7
FIGURE 3. LM34 with Decoupling from Capacitive Load
DS006685-8
FIGURE 4. LM34 with R-C Damper
Two-Wire Remote Temperature Sensor
(Grounded Sensor)
DS006685-9
V
OUT
= 10mV/˚F (T
A
+3˚F)
FROM +3˚F TO + 100˚F
Two-Wire Remote Temperature Sensor
(Output Referred to Ground)
DS006685-10
LM34
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