ALD1105 データシートの表示（PDF） - Advanced Linear Devices
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ALD1105 Datasheet PDF : 9 Pages
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TYPICAL APPLICATIONS (cont.)
BASIC CURRENT SOURCES
N-CHANNEL CURRENT SOURCE
ISOURCE
V+ = +5V
ISET
RSET
P-CHANNEL CURRENT SOURCE
V+ = +5V
1/2 ALD1105
Q3
Q4
Q2
Q1
1/2 ALD1105
ISET
RSET
I SOURCE
ISOURCE = ISET
= V+ - Vt
RSET
~= V+ - 1.0 =~
RSET
4
RSET
Q1, Q2 : N - Channel MOSFET
Q3, Q4: P - Channel MOSFET
ISOURCE
Q4
Q2
CASCODE CURRENT SOURCES
V+ = +5V
V+ = +5V
ISET
RSET
Q1
Q3
Q3
Q1
ISET
RSET
Q2
Q4
ISOURCE
Q1, Q2, Q3, Q4: N - Channel MOSFET
(1/2 ALD1105 + ALD1116)
ISOURCE = ISET
=
V+ - 2Vt
RSET
=~
3
RSET
Q1, Q2, Q3, Q4: P - Channel MOSFET
(1/2 ALD1105 + ALD1117)
ALD1105
Advanced Linear Devices
6 of 9
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