3.3-V, 200-Ms/s BiCMOS comparator for current-mode interpolation using a transconductance stage

Author

Boni, Andrea ; Melcher, Gebhard ; Morandi, Carlo

Author_Institution

Dept. di Ingegneria dell´´Inf., Parma Univ., Italy

Volume

33

Issue

10

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1563

Lastpage

1567

Abstract

This paper presents the design of a low-power, low-voltage latched comparator, suitable for current-mode interpolation, using transconductors instead of current mirrors. Thanks to this approach, higher immunity to device mismatch and overall improved dynamic performance were achieved. The proposed comparator was integrated in a 0.8 μm bipolar complementary metal-oxide-semiconductor technology and implemented in a 200 Ms/s analog/digital converter with 8 bit resolution on a 1 V differential range at 3.3 V supply

Keywords

BiCMOS integrated circuits; analogue-digital conversion; comparators (circuits); interpolation; signal sampling; 0.8 micron; 3.3 V; 8 bit; ADC application; BiCMOS comparator; analog/digital converter; current-mode interpolation; dynamic performance; latched comparator; low-power operation; low-voltage operation; transconductance stage; Bandwidth; BiCMOS integrated circuits; Energy consumption; Frequency; Interpolation; Low voltage; MOSFETs; Sampling methods; Signal resolution; Transconductance;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.720405

Filename

720405