* Accuracy of better then 0.4%
with standard 1% value resistors
* No offset adjustment necessary
* Expandable to any number of stages
* Very high input impedance
A1 A2 A3 Vo ATTENUATION
0 0 0 0
0 0 1 -1 dB
0 1 0 -2 dB
0 1 1 -3 dB
1 0 0 -4 dB
1 0 1 -5 dB
1 1 0 -6 dB
1 1 1 -7 dB