Apple inc. (20240356507). High Input Impedance Switched-Capacitor Amplifier simplified abstract

High Input Impedance Switched-Capacitor Amplifier

Organization Name

apple inc.

Inventor(s)

Saikrishna Ganta of San Jose CA (US)

Sudharsan Kanagaraj of San Jose CA (US)

Siladitya Dey of Redwood City CA (US)

Man-Chia Chen of Milpitas CA (US)

Paritosh Bhoraskar of Sunnyvale CA (US)

Srinivas Bangalore Seshadri of Mountain View CA (US)

Tao Wang of Cupertino CA (US)

Si Chen of Fremont CA (US)

High Input Impedance Switched-Capacitor Amplifier - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240356507 titled 'High Input Impedance Switched-Capacitor Amplifier

The abstract describes a high input impedance switched capacitor amplifier that charges capacitors during specific time periods, modifies the charge stored on the capacitors by coupling the input signal directly to them, and generates an output signal based on the sampling voltage present on the capacitors.

• The switched capacitor amplifier includes a first buffer circuit for charging capacitors, a switch circuit for modifying the charge on capacitors, and an amplifier circuit for generating an output signal.
• The amplifier has a high input impedance, allowing for accurate signal processing.
• By directly coupling the input signal to the capacitors, the amplifier can efficiently modify the charge stored on them.
• The sampling voltage on the capacitors is used to generate an output signal, ensuring precise amplification of the input signal.
• This innovation improves the performance and accuracy of switched capacitor amplifiers in signal processing applications.

Potential Applications: - Signal processing in communication systems - Sensor interfaces in IoT devices - Medical instrumentation for accurate measurements

Problems Solved: - High input impedance requirements in signal processing - Efficient modification of charge on capacitors - Precise amplification of input signals

Benefits: - Improved accuracy in signal processing - High input impedance for better performance - Efficient charge modification for signal amplification

Commercial Applications: Title: High Input Impedance Switched Capacitor Amplifier for Signal Processing Applications This technology can be used in communication systems, IoT devices, and medical instrumentation for accurate signal processing, leading to improved performance and efficiency in various applications.

Questions about High Input Impedance Switched Capacitor Amplifier: 1. How does the high input impedance of the amplifier impact its performance? 2. What are the key advantages of directly coupling the input signal to the capacitors in the amplifier?

Original Abstract Submitted

a high input impedance switched capacitor amplifier is disclosed. the switched capacitor amplifier includes at least a first buffer circuit configured to charge a first plurality of capacitors during a first time period. a switch circuit is configured to, during a second time period, cause a modification of an amount of charge stored on one of the first plurality of capacitors by coupling an input signal directly to the one of first plurality of capacitors. an amplifier circuit is configured to, based on a sampling voltage present on one of the first plurality of capacitors, generate an output signal.