CPC G05F 1/56 (2013.01) [H03F 1/0216 (2013.01); H04B 1/16 (2013.01); H03F 2200/102 (2013.01); H03F 2200/165 (2013.01)] | 9 Claims |
1. An apparatus comprising:
a compensation circuit including:
a current compensation output;
a first transistor with a first current terminal and a first control terminal, the first current terminal coupled to the current compensation output; and
a resistor ladder with a tap terminal coupled to the first control terminal;
a current mirror circuit having a mirror input and a mirror output, the mirror input coupled to the current compensation output; and
a rectification circuit having an input coupled to the mirror output.
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