Invention Grant
US08054687B2 Systems and methods of providing programmable voltage and current reference devices 有权
提供可编程电压和电流参考装置的系统和方法

Systems and methods of providing programmable voltage and current reference devices
Abstract:
The present invention describes systems and methods to for providing stable and programmable voltage and current reference devices. An exemplary embodiment of the present invention provides a voltage reference device having a first floating-gate transistor with a first source, a first drain, and a first gate. The first gate is provided coupled to a first programming capacitor and a first input capacitor. Furthermore, the voltage reference device includes a second floating-gate transistor having a second source, a second drain, and a second gate. The second gate is provided coupled to a second programming capacitor and a second input capacitor. Additionally, the charge difference between the first floating-gate transistor and the second floating-gate transistor is a reference voltage.
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