TYPICAL APPLICATIONS (cont.)
BASIC CURRENT SOURCES
N- CHANNEL CURRENT SOURCE
V+ = +5V
I
SET
I
SOURCE
R
SET
P- CHANNEL CURRENT SOURCE
V+ = +5V
1/2 ALD1107
or ALD1117
8
7
6
3
2
5
I
SOURCE
I
SET
R
SET
Q
4
Q
2
8
5
6
2
7
3
Q
1
1
1/2 ALD1106
or ALD1116
Q
3
I
SOURCE
= I
SET
=
V+ - Vt
R
SET
~ V+ - 1.0 =
~
=
R
SET
4
R
SET
Q
1,
Q
2
: N - Channel MOSFET
Q
3
, Q
4
: P - Channel MOSFET
CASCODE CURRENT SOURCES
V+ = +5V
V+ = +5V
ALD1107
I
SET
I
SOURCE
Q
4
R
SET
Q
1
Q
2
Q
3
Q
3
Q
4
Q
2
Q
1
I
SET
R
SET
I
SOURCE
ALD1106
V+ - 2Vt
R
SET
3
R
SET
I
SOURCE
= I
SET
=
~
=
Q
1
, Q
2
, Q
3
, Q
4
: N - Channel MOSFET
(ALD1101 or ALD1103)
Q1, Q2, Q3, Q4: P - Channel MOSFET
(ALD1102 or ALD1103)
ALD1106/ALD1116
Advanced Linear Devices
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