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

Claim 16:
17. The temperature sensing circuit of claim 16, wherein the switched capacitor circuit further comprises:
a first switch having a first node coupled to the base-emitter voltage of the fourth bipolar junction transistor, wherein the first switch operates in response to a third control signal;
a second switch having a first node coupled to a second node of the first switch and a second node coupled to a first node of the first variable capacitance, wherein the second switch operates in response to a first control signal;
a third switch having a first node coupled to a second node of the first variable capacitance and a second node coupled to a non-inverting input of the integrator, wherein the third switch operates in response to a second control signal;
a fourth switch having a first node coupled to the second node of the first switch and a second node coupled to a common mode voltage, wherein the fourth switch operates in response to a fourth control signal;
a fifth switch having a first node coupled to the first node of the first variable capacitance and a second node coupled to the common mode voltage, wherein the fifth switch operates in response to the second control signal; and
a sixth switch having a first node coupled to the second node of the first variable capacitance and a second node coupled to the common mode voltage, wherein the sixth switch operates in response to the first control signal.