Hardware Reference
In-Depth Information
Fig. 2.14 CC
implementation using new
current mirror formulation
[
9
]
+V
Q
10
Q
9
Q
11
Q
12
Q
14
Q
13
Q
15
Q
16
V
y+
+
R
−
I
z
I
x+
I
x−
V
z
−
I+
A
C
V
y−
+
I
0
= I+ −I−
B
I−
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
8
Q
7
−V
Concluding Remarks
In this chapter we have discussed a variety of CC implementations using
commercially available op-amps, OTAs and transistor arrays. Also discussed
were methods for converting CCI into CCII and vice versa along with
creation of multiple output CCs based on supply current sensing techniques.
It may be mentioned that the op-amp-OTA implementation proposed by
Senani, its entirely op-amp version proposed by Huertas and operational
mirrored amplifier based versions proposed by Wilson for both CCII+ and
CCII
have been extensively used in literature by a number of researchers to
test and verify their circuit proposals employing current conveyors. Hardware
implementation of CCs described here thus, can be readily used to build and
test current conveyors based circuits when either IC current conveyors are not
available or when multiple output CCs are needed.
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