LT1014DS データシートの表示（PDF） - Linear Technology
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LT1014DS Datasheet PDF : 20 Pages
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LT1013/LT1014
TYPICAL APPLICATIONS
Hot Wire Anemometer
500pF
+15V
Q2–Q5
CA3046
Q1
2N6533
PIN 3 TO –15V
Q2
2k
Q3
Q5
220
10k*
27Ω
0.01µF
1W
+15V
2– 4
150k*
6–
1000pF
A2
33k 5 +LT1014
7 2k
A1
#328
3 +LT1014
11
2k*
–15V
1
1k
ZERO
3.3k
FLOW
–15V
REMOVE LAMP'S GLASS ENVELOPE FROM 328 LAMP.
A1 SERVOS #328 LAMP TO CONSTANT TEMPERATURE.
A2-A3 FURNISH LINEAR OUTPUT vs FLOW RATE.
*1% RESISTOR.
Q4
150k*
1µF
12k
2M
FULL-
SCALE
FLOW
500k
13 –
A4
14
12 +LT1014
0V–10V =
10M
0–1000 FEET/MINUTE
RESPONSE
TIME
ADJUST
100k
9 – 1µF
A3
8
10 +LT1014
10
+15V
15Ω
DALE
HL-25
6.25k**
T1
Liquid Flowmeter
3.2k**
1M*
3.2k*
1M*
2–
A1
1
1M*
3 +LT1014
6.25k**
1M*
T2
100k
1N4148
10M
RESPONSE
TIME
100k
6–
A2
5 +LT1014
7
6.98k*
5k
FLOW
CALIB
1µF
1k*
+15V
4.7k
2N4391
LT1004
–1.2
0.1
383k* 9 –
2.7k
–15V
A3
10 +LT1014
300pF
8 100k
100k
+15V
12 + 4
A4
LT1014
13 –
11
–15V
OUTPUT
0Hz 300Hz =
0 300ML/MIN
14
T1 15Ω HEATER RESISTOR T2
FLOW
PIPE
FLOW
* 1% FILM RESISTOR.
** SUPPLIED WITH YSI THERMISTOR NETWORK.
T1, T2 YSI THERMISTOR NETWORK = #44201.
FLOW IN PIPE IS INVERSELY PROPORTIONAL TO
RESISTANCE OF T1–T2 TEMPERATURE DIFFERENCE.
A1–A2 PROVIDE GAIN. A3–A4 PROVIDE LINEARIZED
FREQUENCY OUTPUT.
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