Patent ID: 11892360
Assignee: STMICROELECTRON NTERNATIONAL N.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 21:
22. The temperature sensing circuit of claim 21, wherein the switched capacitor circuit further comprises:
a thirty first switch having a first node coupled to the base-emitter voltage of the fifth bipolar junction transistor, wherein the thirty first switch operates in response to the third control signal;
a thirty second switch having a first node coupled to a second node of the thirty first switch and a second node coupled to a first node of the second variable capacitance, wherein the thirty second switch operates in response to the first control signal;
a thirty third switch having a first node coupled to a second node of the second variable capacitance and a second node coupled to the non-inverting input of the integrator, wherein the thirty third switch operates in response to the second control signal;
a thirty fourth switch having a first node coupled to the second node of the thirty first switch and a second node coupled to the common mode voltage, wherein the thirty fourth switch operates in response to the fourth control signal;
a thirty fifth switch having a first node coupled to the first node of the second variable capacitance and a second node coupled to the common mode voltage, wherein the thirty fifth switch operates in response to the second control signal; and
a thirty sixth switch having a first node coupled to the second node of the second variable capacitance and a second node coupled to the common mode voltage, wherein the thirty sixth switch operates in response to the first control signal.