Patent ID: 11876490
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Basic communication processes (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An integrated circuit for temperature gradient compensation of a bandgap voltage, the integrated circuit comprising:
a bandgap core circuit having a bandgap feedback input, a bandgap adjustment input and a bandgap reference output;
a compensation resistor coupled between the bandgap adjustment input and a ground terminal;
an offset and slope correction circuit having an offset correction output coupled to the bandgap adjustment input;
a thermal error cancellation (TEC) circuit having a TEC output coupled to the bandgap adjustment input, the TEC circuit including first and second temperature sensors spaced from each other, the TEC circuit configured to provide a signal at the TEC output responsive to temperatures at the first and second temperature sensors; and
an amplifier having an amplifier input and an amplifier output, the amplifier input coupled to the bandgap reference output.