ISO164 and ISO174 are PGA input isolation amplifiers
incorporating a novel duty cycle modulation-demodulation
technique which provides excellent accuracy.
Internal input protection can withstand up to
±40V differential inputs without damage. The signal is
transmitted digitally across a differential capacitive
barrier. With digital modulation the barrier characteristics
do not affect signal integrity. This results in
excellent reliability and good high frequency transient
immunity across the barrier. Both the amplifier and
barrier capacitors are housed in a plastic DIP. ISO164
and ISO174 differ in frequency response and linearity.
These amplifiers are easy to use. No external components
are required. A power supply range of ±4.5V to
±18V makes these amplifiers ideal for a wide range of
applications.