The power amplifier is a LME 49600. It has a rated supply
voltage up to ±18 V, a slew rate of 2000 V/μs and a bandwidth
of 180 MHz. It should be noted that more performing amplifiers
supplied at lower voltages are not available; then, it is not worth
further increasing k.
It should be noted that the used amplifiers have a fast enough
time response to achieve a good compensation. In particular,
the rise time of the CM voltage, experimentally measured, is
about 900 ns that corresponds to a maximum frequency of
about 350 kHz in the CM voltage spectrum. On this basis, the
bandwidth of the power amplifier has been limited to 500 kHz
(experimentally verified).
The power amplifier is a LME 49600. It has a rated supplyvoltage up to ±18 V, a slew rate of 2000 V/μs and a bandwidthof 180 MHz. It should be noted that more performing amplifierssupplied at lower voltages are not available; then, it is not worthfurther increasing k.It should be noted that the used amplifiers have a fast enoughtime response to achieve a good compensation. In particular,the rise time of the CM voltage, experimentally measured, isabout 900 ns that corresponds to a maximum frequency ofabout 350 kHz in the CM voltage spectrum. On this basis, thebandwidth of the power amplifier has been limited to 500 kHz(experimentally verified).
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