Method and apparatus for implementing DC mode selection in a data access arrangement

A data access arrangement comprising an artificial inductor coupled across a first node and a second node, said artificial inductor having a selectable DC mode, wherein said artificial inductor comprises:

• a first transistor and a first resistance coupled in series between said first node and said second node;
• a second transistor coupled in feedback between said first resistance and the base of said first transistor to provide current limiting of said DC mode;
• a second resistance and a first impedance coupled in series between said first node and said second node, said second resistance and said first impedance forming a voltage divider, said base of said first transistor coupled to a third node between said second resistance and said first impedance;
• a first control element coupled to said voltage divider to determine a voltage level of said DC mode;
• and
• a second control element coupled to said second transistor to disable said second transistor.

A circuit comprising:

• a first transistor and a first resistance coupled in series between a first node and a second node;
• a first voltage divider coupled between said first and second node, said first voltage divider having an intermediate node coupled to the base of said first transistor;
• a second voltage divider coupled in parallel with said first resistance, said second voltage divider comprising a thermistor;
• a second transistor coupled between said base of said first transistor and said second node, the base of said second transistor coupled to an intermediate node of said second voltage divider.