ald1105db Advanced Linear Devices Inc (ALD), ald1105db Datasheet - Page 6

• Manufacturer Part Number: ald1105db
• Description: Dual N-channel And Dual P-channel Matched Pair Mosfet
• Manufacturer: Advanced Linear Devices Inc (ALD)

ALD1105
I
SOURCE
I
SOURCE
I
SOURCE
N- CHANNEL CURRENT SOURCE
Q
Q
1,
2
Q
Q
Q
Q
1
, Q
2
2
4
= I
: N - Channel MOSFET
2
, Q
SET
3
, Q
4
=
: N - Channel MOSFET
V + - Vt
(1/2 ALD1105 + ALD1116)
R
SET
I
SET
1/2 ALD1105
I
~
=
SET
V + = +5V
V + - 1.0
R
V + = +5V
SET
CASCODE CURRENT SOURCES
TYPICAL APPLICATIONS
R
BASIC CURRENT SOURCES
Q
R
SET
1
SET
Q
Q
Advanced Linear Devices
=
~
3
1
R
4
SET
I
Q1, Q2, Q3, Q4: P - Channel MOSFET
SET
I
SOURCE
Q
Q
I
SET
3
1
Q
P- CHANNEL CURRENT SOURCE
Q
3
, Q
3
= I
R
SET
4
SET
(1/2 ALD1105 + ALD1117)
: P - Channel MOSFET
R
=
SET
V + = +5V
V + - 2Vt
R
SET
V + = +5V
~
=
R
3
SET
1/2 ALD1105
Q
Q
I
SOURCE
2
4
Q
I
SOURCE
4
6