LM385LPE3-2-5 Datasheet, PDF (7/18 Pages) Texas Instruments – MICROPOWER VOLTAGE REFERENCES

LM285Ć2.5, LM385Ć2.5, LM385BĆ2.5
MICROPOWER VOLTAGE REFERENCES
SLVS023J − JANUARY 1989 − REVISED MARCH 2005
APPLICATION INFORMATION
IO ≈ 60 µA
+
Two Mercury
Cells
2.6 V ^−
3.3 kΩ
200 kΩ ±1%
cw
20 kΩ
V+
LM334
V−
R ^{2.00 kΩ ±1%}
cw
500 Ω
LM385-2.5
953 Ω
±1%
412 Ω^†
±1%
+
Type K _−
† _{Adjust for 12.17 mV at 25°C across 412 Ω}
Meter
Figure 10. Thermocouple Cold-Junction Compensator
V+ 3.7 V ≤ V+ ≤ 30 V
LM334
R
V−
LM385-2.5
2.74 kΩ
2.5 V
Figure 11. Operation Over a Wide Supply Range
9V
221 kΩ
2.5 V
LM385-2.5
Figure 12. Reference From a 9-V Battery
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