lt1013dn8-pbf Linear Technology Corporation, lt1013dn8-pbf Datasheet - Page 12

• Manufacturer Part Number: lt1013dn8-pbf
• Description: Lt1014 - Quad Precision Op Amp Lt1014 Dual Precision Op Amp Lt1013
• Manufacturer: Linear Technology Corporation

LT1013/LT1014
TYPICAL APPLICATIO S
12
0.068
+9V
+9V
2
3
100k
15k
–
+
LT1014
+9V
15k
3k
4
11
–INPUT
+INPUT
0.068
0.068
1
20k
1μF
20k
100k
100k
CONVERT COMMAND
1N4148
15
14
7
6
CABLE SHIELDS
U
74C221
TO A/D
9V Battery Powered Strain Gauge Signal Conditioner
5V Powered Precision Instrumentation Amplifier
1
5
22M
4.7k
+5V
+5V
INPUT
13
9
TO
STRAIN GAUGE
†
†
†
†
0.01
330Ω
8
BRIDGE
2
3
6
5
RG (TYP 2k)
350Ω
–
+
–
+
LT1014
LT1014
LT1014
200k*
200k*
+9V
2N2219
*
†
1% FILM RESISTOR. MATCH 10k's 0.05%
GAIN EQUATION: A =
FOR HIGH SOURCE IMPEDANCES,
USE 2N2222 AS DIODES.
+
–
47μF
TO A/D RATIO
REFERENCE
9
10
1
7
10
6
5
9
SAMPLED OPERATION GIVES LOW AVERAGE OPERATING CURRENT ≈ 650μA.
4.7k–0.01μF RC PROTECTS STRAIN BRIDGE FROM LONG TERM DRIFTS DUE TO
HIGH ΔV/ΔT STEPS.
–
+
–
+
10k
10k
LT1014
LT1014
10k*
10k*
13
12
400,000
RG
–
+
10k*
LT1014
7
8
+5V
10k*
+ 1.
4
11
499
499
14
13
12
100k
1013/14 TA07
–
+
OUTPUT
LT1014
100k
14
TO A/D
1013/14 TA08
10134fc