High-speed multi-range analog-to-digital converter

Details High-speed multi-range analog-to-digital converter High-speed multi-range analog-to-digital converter

H - Electricity

03

M

H03M 1/18 (2006.01) H03M 1/12 (2006.01)

Patent

CA 2490779

This patent application describes a high-speed multi-range analog-to-digital converter (MRADC) with parallel multi-channel structure. Each channel of this MRADC contains a sequentially connected programmable-gain amplifier (PGA) and an analog-to- digital converter (ADC). All ADCs perform a simultaneous conversion of an input signal into its digital form. At the end of the conversion cycle, depending on which sub-range the input signal is located in, only one specific ADC transmits its binary outputs in parallel code to the output of the MRADC. Simultaneously, the MRADC indicates the sub-range number of that input signal. The control unit can command a change of a gain of the amplifiers in order to accommodate a wide range of input signal magnitudes. This instrument is designed to have a large dynamic measurement range that may vary over several orders of magnitude and the highest possible speed of measurement.

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