LT1013_1 Datasheet, PDF (11/24 Pages) Linear Technology – Quad Precision Op Amp (LT1014) Dual Precision Op Amp (LT1013)

LT1013/LT1014
TYPICAL APPLICATIO S
Hot Wire Anemometer
500pF
+15V
Q2–Q5
CA3046
Q1
2N6533
PIN 3 TO –15V
Q2
2k
Q3
Q5
220
150k*
6^–
1000pF
10k*
27Ω
0.01μF
1W
+15V
2^{– 4}
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
1013/14 TA05
+15V
15Ω
DALE
HL-25
6.25k**
T1
3.2k**
3.2k*
1M*
1M*
6.25k**
T2
100k
Liquid Flowmeter
1M*
2–
A1
3 +^LT1014
1M*
1N4148
10M
6–
RESPONSE
A2
7
1
TIME
5 +^LT1014
6.98k*
100k
5k
FLOW
CALIB
1μF
1k*
+15V
4.7k
2N4391
LT1004
–1.2
0.1
383k* _{9 –}
A3
2.7k
10 +^LT1014
–15V
300pF
8 ^100k
100k
+15V
12 ₊ ⁴
A4
LT1014
13 _–
11
–15V
OUTPUT
0Hz 300Hz =
0 300ML/MIN
14
FLOW
T1 _{15Ω HEATER RESISTOR} T2
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.
1013/14 TA06
10134fc
11