Pipeline type A/D converter

Details Pipeline type A/D converter Pipeline type A/D converter

1996-10-30

1998-10-13

Gaffin, Jeffrey A.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

341118, 341120, 341156, 341162, H03M 138

Patent

active

058218939

ABSTRACT:
In a pipeline type A/D converter, a switch for sampling an analog potential signal has its other terminal in connection with an A/D converter, a D/A converter, a capacitor for subtraction. Even when frequency of the analog potential signal is raised such that input current is increased and a voltage drop is increased at the switch, there will be no error in the result of subtraction like in the conventional example where analog potential signal was directly input to A/D converter. Accordingly, a pipeline type A/D converter with low power dissipation and satisfactory frequency characteristics is obtained.

REFERENCES:
patent: 4894656 (1990-01-01), Hwang et al.
patent: 5274377 (1993-12-01), Matsuura et al.
patent: 5635937 (1997-06-01), Lim et al.
Tatsuji Matsuura, et al: "1.2V Mixed Analog/Digital Circuits Using 0.3um CMOS LSI Technology", 1994 IEEE International Solid-State Circuits Conference, pp. 250-251.

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