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PDF LM285S8-2.5 Data sheet ( Hoja de datos )
| Número de pieza | LM285S8-2.5 | |
| Descripción | Micropower Voltage Reference | |
| Fabricantes | Linear Technology | |
| Logotipo |  |
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FEATURES
s 20µA to 20mA Operating Range
s Guaranteed 1% Initial Voltage Tolerance
s Guaranteed 1Ω Dynamic Impedance
s Very Low Power Consumption
APPLICATI S
s Portable Meter References
s Portable Test Instruments
s Battery-Operated Systems
s Panel Meters
s Current Loop Instrumentation
LM185-2.5/
LM285-2.5/LM385-2.5
Micropower Voltage
Reference
DESCRIPTIO
The LM185-2.5 is a two-terminal band gap reference
diode that has been designed for applications which
require precision performance with micropower opera-
tion. The device provides guaranteed operation specifica-
tions at currents as low as 20µA. The nominal voltage is
2.5V with both 1% and 2% tolerances available. Some
additional features are: maximum dynamic impedance of
1Ω, low noise and excellent stability over time and tem-
perature. The advanced design, processing and testing
techniques make Linear’s LM185-2.5 a superior choice
over previous designs. A circuit for cold junction compen-
sation of a thermocouple is shown below.
For applications requiring guaranteed temperature drift,
see the LT1034 data sheet.
TYPICAL APPLICATI
Thermocouple Cold Junction Compensator
IQ ≈ 50µA
2 MERCURY
CELLS 2.6V
16k
1M
LM385-2.5
100k W.W.
ZERO
950Ω
TYPE K
+
– METER
VIN
LM334
RSET
V–
2k
450Ω
10k ADJUST
FOR 12.17mV
AT 25°C
ACROSS 450Ω
LM185-2.5 TA01
Reverse Voltage Change
16
–55°C ≤ TA ≤ +125°C
12
8
4
0
–4
0.01
0.1 1
10
REVERSE CURRENT (mA)
100
LM185-2.5 TA02
1
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet LM285S8-2.5.PDF ] | |
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