The relation between terminal currents and voltages of the VDBA can be characterized by the following matrix:
The internal construction of DTMOS based ULV and ULP proposed VDBA circuit is shown in Figure 3.
Table 1 shows the aspect ratios of the transistors for the proposed VDBA circuit.
The DC transfer characteristics of proposed VDBA input and output stages are shown in Figure 4 and Figure 5, respectively.
The filter consists of two VDBA devices and two capacitors.
Figure 9 shows that responses of proposed VDBA based filters such as Low-Pass Filter (LPF), High-Pass Filter (HPF), Band-Pass Filter (BPF), and Band-Reject Filter (BRF).