A Design of Switched-Current Auto-Tuning Filter and Its Analysis

Yoshito OHUCHI; Takahiro INOUE; Hiroaki FUJINO

A Design of Switched-Current Auto-Tuning Filter and Its Analysis

Yoshito OHUCHI, Takahiro INOUE, Hiroaki FUJINO

Full Text Views

0

Cite this

Summary :

In this paper, a new switched-current auto-tuning filter is proposed. Switched-current (SI) is a current-mode analog sampled-data circuit technique. An SI circuit can be realized using only standard digital CMOS technologies, and is capable of realizing high frequency circuits. The proposed filter is composed of SI-OTA (operational transconductance amplifier) integrators. The gain of an SI-OTA integrator can be electronically controlled by the bias current. The proposed filter is a current controlled filter (CCF) and a PLL technique was used as its tuning method. A 2nd-order SI auto-tuning low-pass filter with 100kHz cutoff frequency was designed assuming a 2µm CMOS process. The characteristics of this SI filter and its tuning characteristics were confirmed by SPICE simulations.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E78-A No.10 pp.1350-1354

Publication Date: 1995/10/25

Publicized

Online ISSN

DOI

Type of Manuscript: PAPER

Category: Analog Signal Processing

Cite this

Copy

Yoshito OHUCHI, Takahiro INOUE, Hiroaki FUJINO, "A Design of Switched-Current Auto-Tuning Filter and Its Analysis" in IEICE TRANSACTIONS on Fundamentals, vol. E78-A, no. 10, pp. 1350-1354, October 1995, doi: .
Abstract: In this paper, a new switched-current auto-tuning filter is proposed. Switched-current (SI) is a current-mode analog sampled-data circuit technique. An SI circuit can be realized using only standard digital CMOS technologies, and is capable of realizing high frequency circuits. The proposed filter is composed of SI-OTA (operational transconductance amplifier) integrators. The gain of an SI-OTA integrator can be electronically controlled by the bias current. The proposed filter is a current controlled filter (CCF) and a PLL technique was used as its tuning method. A 2nd-order SI auto-tuning low-pass filter with 100kHz cutoff frequency was designed assuming a 2µm CMOS process. The characteristics of this SI filter and its tuning characteristics were confirmed by SPICE simulations.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e78-a_10_1350/_p

Copy

@ARTICLE{e78-a_10_1350,
author={Yoshito OHUCHI, Takahiro INOUE, Hiroaki FUJINO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Design of Switched-Current Auto-Tuning Filter and Its Analysis},
year={1995},
volume={E78-A},
number={10},
pages={1350-1354},
abstract={In this paper, a new switched-current auto-tuning filter is proposed. Switched-current (SI) is a current-mode analog sampled-data circuit technique. An SI circuit can be realized using only standard digital CMOS technologies, and is capable of realizing high frequency circuits. The proposed filter is composed of SI-OTA (operational transconductance amplifier) integrators. The gain of an SI-OTA integrator can be electronically controlled by the bias current. The proposed filter is a current controlled filter (CCF) and a PLL technique was used as its tuning method. A 2nd-order SI auto-tuning low-pass filter with 100kHz cutoff frequency was designed assuming a 2µm CMOS process. The characteristics of this SI filter and its tuning characteristics were confirmed by SPICE simulations.},
keywords={},
doi={},
ISSN={},
month={October},}

Copy

TY - JOUR
TI - A Design of Switched-Current Auto-Tuning Filter and Its Analysis
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1350
EP - 1354
AU - Yoshito OHUCHI
AU - Takahiro INOUE
AU - Hiroaki FUJINO
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E78-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 1995
AB - In this paper, a new switched-current auto-tuning filter is proposed. Switched-current (SI) is a current-mode analog sampled-data circuit technique. An SI circuit can be realized using only standard digital CMOS technologies, and is capable of realizing high frequency circuits. The proposed filter is composed of SI-OTA (operational transconductance amplifier) integrators. The gain of an SI-OTA integrator can be electronically controlled by the bias current. The proposed filter is a current controlled filter (CCF) and a PLL technique was used as its tuning method. A 2nd-order SI auto-tuning low-pass filter with 100kHz cutoff frequency was designed assuming a 2µm CMOS process. The characteristics of this SI filter and its tuning characteristics were confirmed by SPICE simulations.
ER -