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US 5,317,312 AGranted
Analog-to-digital converter of an annular configuration
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsHiroyuki Kouno, Minobu Yazawa, Toshio Kumamoto
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AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsHiroyuki Kouno, Minobu Yazawa, Toshio Kumamoto
Estimating the term…
An A/D converter main body is formed in the form of an annulus with a wiring region set as its center, and a ladder resistor array for dividing an input reference voltage and an analog signal line for applying an input analog signal to each comparator in the A/D converter are formed in the form of an annulus with the wiring region set as a center. Wirings from terminals are once concentrated into the wiring region by an input/output line group and then distributed therefrom to circuit elements. Since the ladder resistor array is formed in a circular form, resistance values are less liable to change as compared to the case where the ladder resistor array is bent, resulting in a higher precision of reference voltages for comparison. Further, wiring lengths for control signals to be applied to the circuit elements are made equal, and there is no fear of line delays in the control signals.
An analog-to-digital converter for converting an analog signal into a digital signal by sampling the analog signal at a timing defined by an externally applied clock signal, said converter comprising:
An analog-to-digital converter for converting an analog signal into a digital signal by sampling the analog signal at a timing defined by an externally applied clock signal, said converter comprising:
An analog-to-digital converter for converting an analog signal into a digital signal by sampling the analog signal at a timing defined by an externally applied clock signal, said converter comprising:
Dependencies are inferred from the claim text.