Abstract: Described embodiments include a circuit for temperature sensing having a first current source coupled to a diode input terminal. The first current source provides a first current at a first current output. A second current source provides a second current at a second current output. The second current is larger than the first current. A first switch is coupled between the second current source output and the diode input terminal. A capacitor is coupled between the diode input terminal and a temperature output terminal. A second switch is coupled between the temperature output terminal and a ground terminal. The temperature output terminal provides a temperature signal having a voltage that is proportional to a temperature of a component.

Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a Zener diode, a first current source, a first n-type field effect transistor (FET), a first inverter circuit, and a second current source. The Zener diode has a cathode coupled to a first node and an anode coupled to a second node. The first current source has a first terminal coupled to the second node and a second terminal coupled to a ground terminal. The first n-type FET has a gate terminal coupled to the second node, a source terminal coupled to the ground terminal, and a drain terminal coupled to a third node. The first inverter circuit has an input coupled to the third node and an output coupled to a fourth node. The second current source has a first terminal coupled to a fifth node and a second terminal coupled to the third node.

Abstract: A current source circuit includes an initial bias generator and a diode-connected first metal oxide semiconductor (MOS) transistor having a gate, a source, and a drain. The drain of the diode-connected MOS transistor is connected to the initial bias generator. The current source circuit also includes a second MOS transistor, a first resistor, and a current mirror. The second MOS transistor has a gate connected to the gate and drain of the diode-connected first MOS transistor. The first resistor is coupled between a source of the second MOS transistor and a ground node. The current mirror is coupled to a drain of the second MOS transistor and generates bias current for other components within the current source circuit.

Abstract: Aspects of the disclosure provide for a circuit. In some examples, the circuit includes a Zener diode, a first current source, a first n-type field effect transistor (FET), a first inverter circuit, and a second current source. The Zener diode has a cathode coupled to a first node and an anode coupled to a second node. The first current source has a first terminal coupled to the second node and a second terminal coupled to a ground terminal. The first n-type FET has a gate terminal coupled to the second node, a source terminal coupled to the ground terminal, and a drain terminal coupled to a third node. The first inverter circuit has an input coupled to the third node and an output coupled to a fourth node. The second current source has a first terminal coupled to a fifth node and a second terminal coupled to the third node.