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Transconductance amplifiers:) c" _% S4 K/ J2 t" m( G, X
) `, m1 D! E6 [. {- _A transconductance amplifier (gm amplifier) puts out a current proportional to its input voltage. In network analysis the transconductance amplifier is defined as a voltage controlled current source (VCCS) .5 f0 F5 j8 u6 H9 d* _5 C' s# C
! z2 T7 w! P, U9 u4 ]- y& yOperational transconductance amplifiers4 H3 K2 j, P, k- ~% ?: m
; t, {$ e% N4 E; T5 qMany semiconductor manufacturers produce chips (integrated circuits) which can function as transconductance amplifiers. These are frequently described as operational transconductance amplifiers (OTAs) and normally have an input to allow the transconductance to be controlled. Examples are: CA3080, MAX 435, MAX 436, LM13700. |
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