Title Style: 10pt times Roman, All Caps, Ctr, R

 This paper presents the tunable technique of the analog filter at high frequency fp = 1 MHz by used the Fractional-order   n   step, where n is an original of integerorder on circuit and  is an approximation order step 0 1    , An approximation order is designed from the Fractance circuits, and also presents the approximation function of the Fractional-order Laplacian s  design on the OTA lowpass filter circuit. This circuit used single active component. OTA and CFA components are in monolithic chip (IC LT1228).The CFA design with the Fractional-order elements to feedback control the OTA for relative stabilty gain of amplifier. The results shown that tunable filter by Fractional-order step technique provides the flat passband and reduced the peaking problem and improved slope of magnitude response of filter and result comparable with high-order filters. Keywords Operation Transconductance; Fractional-order; Low Pass filter; Fractance circuits