Varieties of Current Conveyors - Current Conveyors: Variants, Applications and Hardware Implementations - page 331

+V DD

M 2 M 7 V C2

M 8

V B1

M 14

M 20

M 12 M 18

M 11 M 17

Y M 1 M 4

X Z+ Z-

M 10

M 15 M 16

M 9

M 6

V C1

V B2

M 5 M 3 M 19

M 13

−V SS

Fig. 10.21 An exemplary realization of the balanced output third generation current conveyor
proposed by Sobhy and Soliman (Adapted from [ 31 ] 2009 Springer)

©

10.2.21 Balanced-Output Third Generation Inverting CC

Balanced output third generation inverting current conveyor was introduced by
Sobhy and Soliman in [ 31 ]. It combines the characteristic of an inverting current
conveyor and the third generation current conveyor and is characterized by the
following matrix equation.

0 1 0 1 0 1

I Y
V X
I Zþ
I Z

0 100 V Y

I X
V Zþ
V Z

@ A ¼ @ A @ A

1000
0100
0

ð 10 : 22 Þ

100

A typical CMOS realization devised by the author of [ 31 ] is shown in Fig. 10.21 .
The applications, where balanced output third generation inverting current con-
veyor can be employed usefully, have been demonstrated in [ 31 ] and include the
realization of voltage-to-current converter, MOSFET-C lossless integrators and
biquad filters and MOSFET-C oscillators.

10.2.22 Voltage and Current Gain Second Generation
Current Conveyor (VCG-CCII)

The voltage and current gain CCII (VCG-CCII) was introduced by Marcellis
et al. in [ 60 ]. Its internal architecture can be understood by the schematic shown in
Fig. 10.22 . It is characterized by the following equations: I y ¼

0V x ¼ hV y ,I z ¼ kI x