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INA141UG4 Datasheet(PDF) 10 Page - Texas Instruments

Part # INA141UG4
Description  Precision, Low Power, G = 10, 100 INSTRUMENTATION AMPLIFIER
PDF  14 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA141UG4 Datasheet(HTML) 10 Page - Texas Instruments

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®
INA141
10
REF102
R
2
R1
R
3
Pt100
Cu
Cu
V+
K
6
10.0V
4
2
INA141
V
O
Ref
100
Ω = Pt100 at 0°C
FIGURE 4. ECG Amplifier With Right-Leg Drive.
FIGURE 5. Bridge Amplifier.
FIGURE 7. Thermocouple Amplifier With RTD Cold-
Junction Compensation.
SEEBECK
ISA
COEFFICIENT
TYPE
MATERIAL
(
µV/°C)
R1, R2
E
+ Chromel
58.5
66.5k
Ω
– Constantan
J
+ Iron
50.2
76.8k
Ω
– Constantan
K
+ Chromel
39.4
97.6k
Ω
– Alumel
T
+ Copper
38.0
102k
Ω
– Constantan
INA141
V
O
C
1
0.1µF
OPA602
Ref
R
1
1M
Ω
f
–3dB =
1
2
πR
1C1
= 1.59Hz
V
IN
+
–
FIGURE 6. AC-Coupled Instrumentation Amplifier.
INA141
I
B
R
1
V
IN
–
+
A
1
I
O
Load
I
O =
• G
V
IN
R
1
Ref
A1
IB Error
OPA177
±1.5nA
OPA131
50pA
OPA602
±1pA
OPA128
±75fA
FIGURE 8. Differential Voltage to Current Converter.
INA141
V
O
LA
RL
RA
10k
Ω
Ref
G = 10
20k
Ω
20k
Ω
V
G
1/4
OPA4131
390k
Ω
390k
Ω
1/4
OPA4131
OPA4131
1/4
OPA4131
1/4
300
Ω
+5V
2.5V –
∆V
2.5V +
∆V
+15V
–15V
INA141
V
O
Ref



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