Abstract: A single-ended to differential converter includes a converter input, a first converter output, a second converter output, and an internal node, wherein the first converter output and the second converter output comprise a differential output; a non-inverting amplifier having an input coupled to the converter input, and an output coupled to the first converter output; an inverting amplifier having an input coupled to the first converter output, and an output coupled to the second converter output; a charge pump having a charge pump output capacitor coupled between the second converter output and the internal node; and a feedback capacitor coupled between the first converter output and the internal node.

Abstract: In accordance with an embodiment, a circuit includes: a first super source follower; a compensation circuit having a compensating node configured to provide a voltage of opposite phase of a voltage of an internal node of the first super source follower; and a first compensation capacitor coupled between an input of the first super source follower and the compensating node of the compensation circuit.

Abstract: A logarithmic amplifier includes programmable gain amplifiers each having a different gain, wherein an input of each of the programmable gain amplifiers is coupled to an input of the logarithmic amplifier; and a summing circuit having inputs coupled to a corresponding output of each of the programmable gain amplifiers and an output coupled to an output of the logarithmic amplifier, wherein the summing circuit generates a logarithmic transfer function having piecewise linear segments.

Abstract: A single-ended to differential converter includes a converter input, a first converter output, a second converter output, and an internal node, wherein the first converter output and the second converter output comprise a differential output; a non-inverting amplifier having an input coupled to the converter input, and an output coupled to the first converter output; an inverting amplifier having an input coupled to the first converter output, and an output coupled to the second converter output; a charge pump having a charge pump output capacitor coupled between the second converter output and the internal node; and a feedback capacitor coupled between the first converter output and the internal node.

Abstract: In accordance with an embodiment, a circuit includes: a first super source follower; a compensation circuit having a compensating node configured to provide a voltage of opposite phase of a voltage of an internal node of the first super source follower; and a first compensation capacitor coupled between an input of the first super source follower and the compensating node of the compensation circuit.

Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.

Abstract: A microphone includes an amplifier coupled to an input node of the microphone; a shock detector coupled to the input node of the microphone; and a recovery circuit having an input coupled to an output of the shock detector, and an output coupled to the input of the microphone.

Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.

Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.

Abstract: A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.