Operational Simulation of LC Ladder Filter Using VDTA

Table 3

Key parameters of simulated 4th-order low pass ladder filter.

Bias current	150 µA
VDTA transconductance,	627 µS at bias current of 150 µA
Theoretical cut-off frequency	5 MHz
Simulated cut-off frequency	4.99 MHz
Roll-off rate	80 dB/decade
Total power consumption	2.16 mW
Total output noise voltage	5.7 nV/Hz^1/2
% THD	<3% for input signal up to 600 mV p-p