Patent ID: 11929755
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Control (Instruments)
Classification: CPC H  G | IPC G  H

Claim 16:
17. The circuit of claim 16, wherein the knee code selector circuit is a first knee code selector circuit, the output circuit is a first output circuit, and the trim DAC is a first trim DAC, the circuit further comprising a piecewise linear (PWL) compensation generator circuit and a piecewise non-linear (PWNL) compensation generator circuit, the PWL compensation generator circuit comprising the first knee code selector circuit and the first output circuit, and
the PWNL compensation generator circuit comprising:
a second knee code selector circuit having a first bias current input, a second bias current input, knee code inputs and knee point current outputs, the first bias current input of the second knee code selector circuit adapted to be coupled to a third current source and the second bias current input of the second knee code selector circuit adapted to be coupled to a fourth current source, the knee code inputs of the second knee code selector circuit are coupled to the respective output of the respective knee code storage circuit or register;
a second output circuit having a first current bias input, a second current bias input, and a current output, the first current bias input of the second output circuit coupled to the first knee point current output of the second knee code selector circuit, the second current bias input of the second output circuit is coupled to the second knee point current output of the second knee code selector circuit; and
a second trim DAC having a trim input and a trim output, the trim input of the second trim DAC coupled to the current output of the second output circuit and the trim output of the second trim DAC coupled to the input of the bandgap reference circuit.