TTE has continually designed and manufactured Active and Passive filters since it was established in 1956. These series of active lowpass filters for purchase are available for frequencies from 0.1Hz to 1MHz.
The Active Lowpass filter designs include Bessel, Butterworth and Chebyshev topologies.
Active Bessel Filters exhibit a constant time delay in the passband of the filter.
Active Butterworth Filters are more selective than Bessel Filters and offer both monotonic passband and stopbands.
Active Chebyshev Filters have a low ripple passband and monotonic stopbands. The passband ripple is 0.25dB typically.
All Active Lowpass filters for purchase are offered in PCB or connectorized cases.
TTE offers two evaluation fixtures which may be used as a permanent mounting platform or for testing these Active Lowpass filters for purchase.
Using highpass and lowpass filters on the EVO fixtures, one can create a wideband bandpass filter or a band rejection filter. Using lowpass filters connected in series a lowpass filter with an extended stopband can be created.
For assistance please call 310.478.8224 or email us at .