A double-sampling pseudo-two-path bandpass ΔΣ modulator

Shen Iuan Liu; Chien Hung Kuo; Ruey Yuan Tsai; Jingshown Wu

doi:10.1109/4.823453

A double-sampling pseudo-two-path bandpass ΔΣ modulator

Shen Iuan Liu^*, Chien Hung Kuo, Ruey Yuan Tsai, Jingshown Wu

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

A double-sampling pseudo-two-path bandpass ΔΣ modulator is proposed. This modulator has an output rate equal to twice the dock rate, uses n/2 operational amplifier s (op-amps) for an nth-order noise transfer function, and has reduced clock feedthrough in the signal path band. The required clocks can be simpler to implement than the conventional pseudo-two-path techniques. The measured signal-to-noise ratio and dynamic range of the fourth-order double-sampling pseudo-two-path bandpass ΔΣ modulator in a 30-kHz bandwidth at a center frequency of 2.5 MHz (at a clock frequency of 5 MHz) are 62 and 68 dB, respectively.

Original language	English
Pages (from-to)	276-280
Number of pages	5
Journal	IEEE Journal of Solid-State Circuits
Volume	35
Issue number	2
DOIs	https://doi.org/10.1109/4.823453
Publication status	Published - 2000 Feb
Externally published	Yes

Keywords

Bandpass ΔΣ modulator
Double sampling
Pseudo-two-path

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/4.823453

Cite this

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title = "A double-sampling pseudo-two-path bandpass ΔΣ modulator",

abstract = "A double-sampling pseudo-two-path bandpass ΔΣ modulator is proposed. This modulator has an output rate equal to twice the dock rate, uses n/2 operational amplifier s (op-amps) for an nth-order noise transfer function, and has reduced clock feedthrough in the signal path band. The required clocks can be simpler to implement than the conventional pseudo-two-path techniques. The measured signal-to-noise ratio and dynamic range of the fourth-order double-sampling pseudo-two-path bandpass ΔΣ modulator in a 30-kHz bandwidth at a center frequency of 2.5 MHz (at a clock frequency of 5 MHz) are 62 and 68 dB, respectively.",

keywords = "Bandpass ΔΣ modulator, Double sampling, Pseudo-two-path",

author = "Liu, {Shen Iuan} and Kuo, {Chien Hung} and Tsai, {Ruey Yuan} and Jingshown Wu",

note = "Funding Information: Manuscript received January 7, 1999; revised October 4, 1999. This work was supported by the National Science Council, Taiwan, R.O.C., under Grant NSC88-2215-E-002-030. The authors are with the Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C. (e-mail: [email protected]). Publisher Item Identifier S 0018-9200(00)00941-0.",

year = "2000",

month = feb,

doi = "10.1109/4.823453",

language = "English",

volume = "35",

pages = "276--280",

journal = "IEEE Journal of Solid-State Circuits",

issn = "0018-9200",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - A double-sampling pseudo-two-path bandpass ΔΣ modulator

AU - Liu, Shen Iuan

AU - Kuo, Chien Hung

AU - Tsai, Ruey Yuan

AU - Wu, Jingshown

N1 - Funding Information: Manuscript received January 7, 1999; revised October 4, 1999. This work was supported by the National Science Council, Taiwan, R.O.C., under Grant NSC88-2215-E-002-030. The authors are with the Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan 10617, R.O.C. (e-mail: [email protected]). Publisher Item Identifier S 0018-9200(00)00941-0.

PY - 2000/2

Y1 - 2000/2

N2 - A double-sampling pseudo-two-path bandpass ΔΣ modulator is proposed. This modulator has an output rate equal to twice the dock rate, uses n/2 operational amplifier s (op-amps) for an nth-order noise transfer function, and has reduced clock feedthrough in the signal path band. The required clocks can be simpler to implement than the conventional pseudo-two-path techniques. The measured signal-to-noise ratio and dynamic range of the fourth-order double-sampling pseudo-two-path bandpass ΔΣ modulator in a 30-kHz bandwidth at a center frequency of 2.5 MHz (at a clock frequency of 5 MHz) are 62 and 68 dB, respectively.

AB - A double-sampling pseudo-two-path bandpass ΔΣ modulator is proposed. This modulator has an output rate equal to twice the dock rate, uses n/2 operational amplifier s (op-amps) for an nth-order noise transfer function, and has reduced clock feedthrough in the signal path band. The required clocks can be simpler to implement than the conventional pseudo-two-path techniques. The measured signal-to-noise ratio and dynamic range of the fourth-order double-sampling pseudo-two-path bandpass ΔΣ modulator in a 30-kHz bandwidth at a center frequency of 2.5 MHz (at a clock frequency of 5 MHz) are 62 and 68 dB, respectively.

KW - Bandpass ΔΣ modulator

KW - Double sampling

KW - Pseudo-two-path

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ER -

A double-sampling pseudo-two-path bandpass ΔΣ modulator

Abstract

Keywords

ASJC Scopus subject areas

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