NMOS transistors M14 and M15 function as current paths for the oscillator 100. The sizes of the transistors M14 and M15 and a voltage PDB provided to the gate terminals of the transistors M14 and M15 are selected to handle the currents flowing through the respective transistors M2 and M3. The ability of the transistors M14 and M15 to handle these currents is proportional to the voltage PDB and to the sizes of respective transistors M14 and M15. For example, if the voltage PDB is relatively large, then the transistors M14 and M15 can handle larger currents. By contrast, if the voltage VDB is relatively small, then the transistors M14 and M15 can handle smaller currents. Further, if the transistors M14 and M15 are larger transistors, then the transistors M14 and M15 can handle larger currents, and if the transistors M14 and M15 are smaller in size, then the transistors M14 and M15 can handle smaller currents. The voltage PDB is also received at the respective gate terminals of the PMOS transistors M16 and M17, as shown in FIG. 1. The PMOS transistors M16 and M17 have respective source terminals coupled to the node NVDD. The PMOS transistor M16 has a drain terminal coupled to the terminal 116, and the PMOS transistor M16 has a drain terminal coupled to the terminal 118.