A low-power technique for pipelined ADCs with programmable gain amplification

Okura, Tetsuro; Okura, Shunsuke; Matsuoka, Toshimasa et al.

IEICE Electronics Express, 2013, 10(1), 20120876

Number of Access:617（2025-08-14 03:05 Counts）

Identifier to cite or link to this item: https://hdl.handle.net/11094/51662

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Title
A low-power technique for pipelined ADCs with programmable gain amplification
Creator
CreatorName
Okura, Tetsuro
CreatorName
Okura, Shunsuke
NRID
1000080324820 1000080324820
ORCID
0000-0003-3876-2679 0000-0003-3876-2679
researchmap permalink
read0068628 read0068628
Scopus Author ID
7402741552 7402741552
CreatorName
Matsuoka, Toshimasa
NRID
1000020192180 1000020192180
CreatorName
Taniguchi, Kenji
Subject
pipelined A/D converter
programmable gain amplifier
controllable transconductance
low power
Abstract
A pipelined analog-to-digital converter (ADC) has been investigated, which has a programmable gain achieved by the gain control in a first-stage multiplying digital-to-analog converter (MDAC). The current consumption reduction under low gain is realized by controlling the transconductance and compensation capacitor of the MDAC circuit according to the input gain. The pipelined ADC designed using a 0.18µm CMOS technology shows a sampling rate of 40MSps and an input gain of 0-18dB (6dB-step). The maximum current consumption is 14.2mA at the input gain of 18dB and the minimum is 7.5mA at 0dB. The signal-to-noise plus distortion ratio (SNDR) is 66.1dB for an input signal amplitude of 2Vpp and an input gain of 0dB, and 63.4dB for an input signal amplitude of 250mVpp and an input gain of 18dB.
Publisher
電子情報通信学会
The Institute of Electronics, Information and Communication Engineers
デンシ　ジョウホウ　ツウシン　ガッカイ
Source Title
IEICE Electronics Express
Volume (Issue)
10(1)
Page
20120876
Date of Issued
2013-01
Language
English
Handle URL
https://hdl.handle.net/11094/51662
eISSN
13492543
Relation.isIdenticalTo
DOI (Publisher Version)
https://doi.org/10.1587/elex.10.20120876
Access Rights
open access
CopyRight
copyright©2013 IEICE
oaire:version
Version of Record
Category
学術雑誌論文 Journal Article