Title:
INFORMATION PROCESSOR
Document Type and Number:
Japanese Patent JP2001034735
Kind Code:
A
Abstract:
To realize a DA converter which is highly integrated and highly accurate.
This information processing includes a plurality of DA converters DAA1 which convert a plural-bit digital signal into an analog signal and output the analog signal, the magnitude of an analog output of a plurality of DA converters DAA1 is controlled by a single control circuit, the control circuit includes a current source to be a reference, and the converters DAA1 are controlled by the control circuit so that the magnitude of the output of the DA converters DAA1 can be decided according to the current value of the current source. Thus, highly accurate voltage/current conversion can be realized, and the DA converters can be formed with high integration.
Inventors:
WATABE TAKAO
KIMURA KATSUTAKA
SAKATA TAKESHI
AOKI MASAKAZU
KIMURA KATSUTAKA
SAKATA TAKESHI
AOKI MASAKAZU
Application Number:
JP2000139397A
Publication Date:
February 09, 2001
Filing Date:
October 31, 1991
Export Citation:
Assignee:
HITACHI LTD
International Classes:
G06G7/60; G06J1/00; G06N3/063; H03M1/66; H03M1/74; (IPC1-7): G06N3/063; G06J1/00; H03M1/66; H03M1/74
Attorney, Agent or Firm:
Sakuta Yasuo