Why is it that decreases of the input resistance of the amplifiers not a problem for a single-diode temperature compensation or two-diode compensation circuits  such as constant current sources used in integrated circuits?

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TRANSISTOR BIAS DESIGN AND STABILITY

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Why is it that decreases of the input resistance of the amplifiers not a problem for a single-diode temperature compensation or two-diode compensation circuits  such as constant current sources used in integrated circuits?

Vcc
Vcc
R1
R1
D,
D,
D,
R2
RE
R2
RE
(b)
(a)
Figure 3: (a) Single-diode temperature compensation, (b) Two-diode compensation.
Transcribed Image Text:Vcc Vcc R1 R1 D, D, D, R2 RE R2 RE (b) (a) Figure 3: (a) Single-diode temperature compensation, (b) Two-diode compensation.
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