Wideband voltage translators
AssigneeAnalog Devices, Inc.
InventorsKimo Y. F. Tam, Jennifer Lloyd
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Abstract
In embodiments of the present invention, the problems of poor low-frequency response, slow speed, high cost and high power consumption in conventional voltage translators are addressed by processing high frequency and low frequency components of an input signal separately in two parallel stages without the use of large passive components or slow devices. At the output, the processed high frequency and low frequency components are seamlessly merged at a combining stage that maintains the integrity of the frequency response over the complete translator bandwidth.
Claims20
A voltage level translator for translating an input signal in an input voltage domain to an output signal in an output voltage domain, the translator comprising:
- a low frequency stage for receiving and processing the input signal to generate a first processed signal in a low frequency range, wherein the first processed signal is in the output voltage domain;
- a high frequency stage for receiving and processing the input signal to generate a second processed signal in a high frequency range, wherein the second processed signal determines a bandwidth of the translator;
- and
- a combining stage for combining the first and second processed signals to generate the output signal.
A method of translating an input signal in an input voltage domain to an output signal in an output voltage domain, the method comprising:
- receiving and processing the input signal at a low frequency stage to generate a first processed signal in a low frequency range, wherein the first processed signal is in the output voltage domain;
- receiving and processing the input signal at a high frequency stage to generate a second processed signal in a high frequency range, wherein the second processed signal determines a bandwidth of the translator;
- and
- combining the first and second processed signals at a combining stage to generate the output signal.
Dependencies are inferred from the claim text.