Digital-to-analog charge converter employing floating gate MOS t

Details Digital-to-analog charge converter employing floating gate MOS t Digital-to-analog charge converter employing floating gate MOS t

1997-09-30

1999-09-14

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

With particular solid state devices

341144, H03M 166

Patent

active

059529466

ABSTRACT:
The present invention relates to a digital-to-analog converter having a plurality of inputs for digital signals, and an output for an analog signal. It also contains a charge integration circuit having an input and an output coupled to the converter output, and a plurality of floating gate MOS transistors corresponding to the plurality of converter inputs, the MOS transistors all having their source and drain terminals coupled together and to the input of the integration circuit, and having control terminals coupleable, under control from the plurality of inputs of digital signals, to different reference voltages having selected fixed values.

REFERENCES:
patent: 5014055 (1991-05-01), Dingwall et al.
patent: 5162801 (1992-11-01), Powell et al.
patent: 5376935 (1994-12-01), Seligson
Kramer et al., "Flash-Based Programmable Nonlinear Capacitor for Switched-Capacitor Implementations of Neural Networks," in Technical Digest of the International Electron Devices Meeting, IEEE, San Francisco, Dec. 11-14, 1994, pp. 449-452.

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