Ref

Filter

structure

Active Building Block and Technology

Power

Consumption

% THD

Output Noise Voltage

Electronic tunability

[4]

LP, HP, BP, BR, AP

MO CCCCTA CMOS Technology 0.35 μm

0.629 mW

<4%

2.5

Yes

[14]

LP, BP, HP, BR, AP

VDTA PSPICE in 0.35 μm CMOS Technology

992 mW

2.62 - 4.33

NA

Yes

[15]

3^rd order

Butter worth LPF

DVCCCTA CMOS Technology 0.25 μm, power supply ±1.25 V

59.2 mW

<5% at 225 mV

NA

Yes

Proposed work

4^th order Butter worth LPF, HPF

VDTACMOS

Technology 0.18 μm, power supply ±0.82 V

268.3 mW

1.68 - 4.56

1.54

Yes