TY  - JOUR
AU  - Langhammer, Lukas
AU  - Dvorak, Jan
AU  - Sotner, Roman
AU  - Jerabek, Jan
PY  - 2017/06/08
Y2  - 2025/01/01
TI  - Electronically Tunable Fully-Differential Fractional-Order Low-Pass Filter
JF  - Elektronika ir Elektrotechnika
JA  - ELEKTRON ELEKTROTECH
VL  - 23
IS  - 3
SE  - 
DO  - 10.5755/j01.eie.23.3.18332
UR  - https://eejournal.ktu.lt/index.php/elt/article/view/18332
SP  - 47-54
AB  - &lt;p&gt;The paper presents proposal of a fully-differential (1 + &lt;em&gt;α&lt;/em&gt;)-order low-pass filter. The order of the filter and its cut-off frequency can be controlled electronically. The filter is proposed using operational transconductance amplifiers (OTAs), adjustable current amplifiers (ACAs) and fully-differential current follower (FD-CF). The circuit structure is based on well-known Inverse Follow-the-Leader Feedback (IFLF) topology. Design correctness of the proposed filter is supported by PSpice simulations with transistor-level simulation models. The ability of the electronic control of the order has been tested for five individual values of parameter &lt;em&gt;α&lt;/em&gt;. Furthermore, the ability of the electronic control of the cut-off frequency of the filter has been also tested for five different values. Additionally, the simulation results of the proposed fully-differential (F-D) filter are compared with the results of the single-ended (S-E) equivalent of the presented filter.&lt;/p&gt;&lt;p&gt;DOI: &lt;a href=&quot;http://dx.doi.org/10.5755/j01.eie.23.3.18332&quot;&gt;http://dx.doi.org/10.5755/j01.eie.23.3.18332&lt;/a&gt;&lt;/p&gt;
ER  -