TC 9-62
GAIN-BANDWIDTH PRODUCT this is computed (for an operational
amplifier) by multiplying the gain by the bandwidth (in hertz). For any given
operational amplifier, the gain-bandwidth product will be remain the same
regardless of the amount of feedback used.
SUMMING AMPLIER - an application of an operational amplifier in which the
output signal is determined by the sum of the input signals multiplied by the
gain of the amplifier:
E OUT = gain (E1 + E2 )
SCALING AMPLIFIER - a special type of summing amplifier with the output
signal determined by multiplying each input signal by a different factor
(determined by the ratio of the input-signal resistor and feedback resistor) and
then adding these products:
R FDBK
R
R
x E1) + ( FDBK x E2) + ( FDBK + E3)]
E OUT= [(
R IN1
R IN2
R IN3
7-52
TC 9-62
23 June 2005
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