Datasheet ALD1107, ALD1117 (Advanced Linear Devices) - 5

TYPICAL APPLICATIONS (cont.) BASIC CURRENT SOURCES
N-CHANNEL CURRENT SOURCE P-CHANNEL CURRENT SOURCE V+ = +5V V+ = +5V
ALD1102, 1/2 ALD1107,
ISET RSET
or ALD1117
ISOURCE 8 7 5 3 6 8 6 Q3 Q4 Q2 Q1 2 2 3 5 7 1 ISOURCE ISOURCE = ISET
ALD1101,
V+ - Vt ISET R
1/2 ALD1106,
SET = RSET
or ALD1116
V+ - 1.0 = ~ RSET 4 = ~ RSET Q1, Q2: N-Channel MOSFET Q3, Q4: P-Channel MOSFET
CASCODE CURRENT SOURCES
V+ = +5V V+ = +5V
2 x ALD1102 or ALD1107
ISET RSET ISOURCE Q1 Q2 Q4 Q3 Q3 Q4 Q2 Q1 ISET R I SET SOURCE
2 x ALD1101
V+ - 2Vt 3
or ALD1106
ISOURCE = ISET = = ~ RSET RSET Q1, Q2, Q3, Q4: N-Channel MOSFET Q1, Q2, Q3, Q4: P-Channel MOSFET (ALD1101 or ALD1103) (ALD1102 or ALD1103)
ALD1107/ALD1117
Advanced Linear Devices 5 of 9