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Instrumentation Amplifier Input Protection Amplify Filter Output

1. The document describes a circuit that includes an instrumentation amplifier for amplifying signals from a sensor. 2. The amplified signals pass through a filter before reaching an output stage. 3. The circuit uses operational amplifiers and resistors to form the instrumentation amplifier, filter, and output stages to process and condition sensor signals.

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Tariq Zuhluf
Copyright
© © All Rights Reserved
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31 views1 page

Instrumentation Amplifier Input Protection Amplify Filter Output

1. The document describes a circuit that includes an instrumentation amplifier for amplifying signals from a sensor. 2. The amplified signals pass through a filter before reaching an output stage. 3. The circuit uses operational amplifiers and resistors to form the instrumentation amplifier, filter, and output stages to process and condition sensor signals.

Uploaded by

Tariq Zuhluf
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Input Protection Instrumentation Amplifier Amplify Filter Output

+5V

8
A +5V U4A A
+5V 3

V+
+
1
+5V 100

100K
RV2
2

V-
-
1N4148

+5V R4
D1

100K
LM358

2
R1

LED
D8
7
5
CHEST1

GND +5V
U1

1
1 3

8
V- V+
Rg Ref
100R + U2A
6 3

8
R2

V+
P1 + U2B
1N4148

2 1 5

Rg

8
V+
- + U4B
D2

AD620 2 7 5

V-

V+
- 100 + GND

4
1
8

2.2K
6 7 ECG

R5
R3

V-
LM358 -

4
6

V-
LM358 -

4
RV3 C1
GND GND GND LM358

4
10K
R7
100uF
10K GND
+5V GND
1N4148

GND

RV1
10K
D3
CHEST2

B B
1
100R
P2 R8
1N4148

D4

GND

ECGOUT
P5
ECG 1

GND
P6

GND
1

GND

D5

+5V
1N4148
U3 LM7805CT
P3 D_Schottky +5V +5V +5V +5V
POWER
1N4148

1 1 3
IN OUT +5V
D7

GND

2 D6
C C
C3 C4 C5 C6 C7 C8 C2
2
LEG

1
P4 100uF 100nF 100uF 100nF 100nF 100nF 100nF

GND

GND GND GND GND


GND

Sheet: /
D File: ECG.sch D

Title:
Size: A4 Date: Rev:
KiCad E.D.A. kicad 4.0.5 Id: 1/1
1 2 3 4 5 6

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