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

Claim 20:
21. The temperature sensing circuit of claim 20, wherein the switched capacitor circuit further comprises:
a twenty fifth switch having a first node coupled to the base-emitter voltage of the second bipolar junction transistor, wherein the twenty fifth switch operates in response to the fourth control signal;
a twenty sixth switch having a first node coupled to a second node of the twenty fifth switch and a second node coupled to a first node of the fourth variable capacitance, wherein the twenty sixth switch operates in response to the first control signal;
a twenty seventh switch having a first node coupled to a second node of the fourth variable capacitance and a second node coupled to the inverting input of the integrator, wherein the twenty seventh switch operates in response to the second control signal;
a twenty eighth switch having a first node coupled to the second node of the twenty fifth switch and a second node coupled to the common mode voltage, wherein the twenty eighth switch operates in response to the third control signal;
a twenty ninth switch having a first node coupled to the first node of the fourth variable capacitance and a second node coupled to the common mode voltage, wherein the twenty ninth switch operates in response to the second control signal; and
a thirtieth switch having a first node coupled to the second node of the fourth variable capacitance and a second node coupled to the common mode voltage, wherein the thirtieth switch operates in response to the first control signal.