Second Generation Controlled Current Conveyors (CCCII) and Their Applications - Current Conveyors: Variants, Applications and Hardware Implementations - page 256

a

PNP Current Repeater

PNP CM1 PNP CM2

+V

I 1 I 2

I 0

Z 3

Z 2

Z 1

Y

X

I 0

I 1

I 2

−V

NPN CM1 NPN Current Repeater NPN CM2

b

I 0

I y

I x

V y

Y

X

V x

I z3

I z2

Z 2 Z 1 Z 3

V z2 V z3

I z1

V z1

Fig. 9.11 (a) A multi-output CCCII (MO-CCCII) with controlled current gains (b) Symbolic
notation of MO-CCCII [ 10 ]

a b

I 0

I 0

Ia

Y

Y Z 1

Z 2

a

Z 3

Ib

b

X X

Z 3

Fig. 9.12 Electronically-tunable resistors [ 10 ](a) floating resistor (b) grounded resistor