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

Claim 4:
5. The temperature sensing circuit of claim 4, wherein the switched capacitor circuit further comprises:
a seventh switch having a first node coupled to the base-emitter voltage of the first bipolar junction transistor, wherein the seventh switch operates in response to the fourth control signal;
an eighth switch having a first node coupled to a second node of the seventh switch and a second node coupled to a first node of the third variable capacitance, wherein the eighth switch operates in response to the first control signal;
a ninth switch having a first node coupled to a second node of the third variable capacitance and a second node coupled to the non-inverting input of the integrator, wherein the ninth switch operates in response to the second control signal;
a tenth switch having a first node coupled to the second node of the seventh switch and a second node coupled to the common mode voltage, wherein the tenth switch operates in response to the third control signal;
an eleventh having a first node coupled to the first node of the third variable capacitance and a second node coupled to the common mode voltage, wherein the eleventh switch operates in response to the second control signal; and
a twelfth having a first node coupled to the second node of the third variable capacitance and a second node coupled to the common mode voltage, wherein the twelfth switch operates in response to the first control signal.