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LM2902D Fiches technique(PDF) 8 Page - STMicroelectronics

No de pièce LM2902D
Description  LOW POWER QUAD OPERATIONAL AMPLIFIERS
PDF  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

LM2902D Fiches technique(HTML) 8 Page - STMicroelectronics

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R1
10kΩ
R2
1MΩ
1/4
LM2902
10kΩ
e I
e O
+5V
(mV)
0
AV=1 +
R2
R1
(As s hown
= 101)
A
V
NON-INVERTING DC GAIN
1/4
LM2902
e O
e
4
e
3
e
2
e
1
100kΩ
100kΩ
100kΩ
100kΩ
100kΩ
100kΩ
eo =e1 +e2 -e3 -e4
where (e1 +e2)
≥ (e3 +e4)
to keep eo
≥ 0V
DC SUMMING AMPLIFIER
R3
100kΩ
e O
R1
100kΩ
e 1
1/4
LM290 2
R7
100kΩ
R6
100kΩ
R5
100kΩ
e 2
R2
2kΩ
G ain ad jus t
R4
100kΩ
1/4
LM2902
1/4
LM2902
if R1 =R5 and R3 =R4 =R6 =R7
eo
= [1+
2R1
R2
]
(e2 − e1)
As shown eo = 101 (e2 -e1).
HIGH INPUT Z ADJUSTABLE GAIN DC
INSTRUMENTATION AMPLIFIER
TYPICAL SINGLE - SUPPLY APPLICATIONS
IB
2N 929
0.001µF
IB
3R
3MΩ
IB
Input curre nt
compe ns a tion
eo
IB
e I
1/4
LM2902
Zo
Z
I
C
1µF
2I
B
R
1MΩ
2I
B
* P olyca rbona te or polyethylene
*
1/4
LM2902
1/4
LM2902
LOW DRIFT PEAK DETECTOR
LM2902
8/14



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