Patent ID: 11867572
Assignee: STMICROELECTRON NTERNATIONAL N.V.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 11:
12. The temperature sensing circuit of claim 2, wherein the switched capacitor circuit further comprises:
a thirtieth switch having a first node coupled to ground, wherein the thirtieth switch operates in response to a fourth control signal;
a thirty first switch having a first node coupled to a second node of the thirtieth switch and a second node coupled to a first node of the first capacitor, wherein the thirty first switch operates in response to a first control signal;
a thirty second switch having a first node coupled to a second node of the first capacitor and a second node coupled to a non-inverting input of the integrator, wherein the thirty second switch operates in response to a second control signal;
a thirty third switch having a first node coupled to the base-emitter voltage of the first bipolar junction transistor and a second node coupled to the second node of the thirtieth switch, wherein the thirty third switch operates in response to a third 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 a common mode voltage, wherein the thirty fourth switch operates in response to a second control signal;
a thirty fifth switch having a first node coupled to the second node of the first capacitor and a second node coupled to the common mode voltage, wherein the thirty fifth switch operates in response to the first control signal;
a thirty sixth switch having a first node coupled to the base-emitter voltage of the third bipolar junction transistor, wherein the thirty sixth switch operates in response to the fourth control signal;
a thirty seventh switch having a first node coupled to a second node of the thirty sixth switch and a second node coupled to a first node of the second capacitor, wherein the thirty seventh switch operates in response to a first control signal;
a thirty eighth switch having a first node coupled to a second node of the second capacitor and a second node coupled to an inverting input of the integrator, wherein the thirty eighth switch operates in response to a second control signal;
a thirty ninth switch having a first node coupled to the base-emitter voltage of the second bipolar junction transistor and a second node coupled to the second node of the thirty sixth switch, wherein the thirty ninth switch operates in response to a third control signal;
a twenty ninth switch having a first node coupled to the second node of the thirty seventh switch and a second node coupled to a common mode voltage, wherein the twenty ninth switch operates in response to a second control signal; and
a twenty eighth switch having a first node coupled to the second node of the second capacitor and a second node coupled to the common mode voltage, wherein the twenty eighth switch operates in response to the first control signal.