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Número de pieza

componentes Descripción

Fabricante

ALD1105

DUAL N-CHANNEL AND DUAL P-CHANNEL MATCHED PAIR MOSFET

Advanced Linear Devices 

TYPICAL APPLICATIONS

CURRENT SOURCE MIRROR

V+ = +5V

Q3

ISET

RSET

V+ = +5V

Q4

I SOURCE

Q1

Q2

Q1, Q2: N - Channel MOSFET

Q3, Q4: P - Channel MOSFET

I SOURCE = ISET

= V+ -Vt

RSET

=~ 4

RSET

CURRENT SOURCE WITH GATE CONTROL

V+ = +5V

Q3

Q4

ISET

Digital Logic Control

of Current Source

ON

RSET

Q1

ISOURCE

OFF

Q1 : N - Channel MOSFET

Q3,Q4 : P - Channel MOSFET

DIFFERENTIAL AMPLIFIER

V+

PMOS PAIR

Q3

Q4

VIN+

Q1

Q2

NMOS PAIR

VOUT

VIN-

CURRENT SOURCE MULTIPLICATION

V+ = +5V

ISET

RSET

QSET

Q1

Q2

Q3

ISOURCE = ISET x N

QN

ALD1105

Current

Source

Q1, Q2: N - Channel MOSFET

Q3, Q4: P - Channel MOSFET

QSET, Q1..QN: ALD 1106 or ALD 1105

N - Channel MOSFET

ALD1105

Advanced Linear Devices

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