Slew rate enhancement based on use of squaring circuits

Maria D R Valero; S Thoutam; J Ramírez-Angulo; A Lopez-Martin; R G  Carvajal

doi:10.1049/el.2014.3975

Slew rate enhancement based on use of squaring circuits

Maria D R Valero^*, S Thoutam, J Ramírez-Angulo, A Lopez-Martin, R G Carvajal

^*Corresponding author for this work

Cabot Institute for the Environment

Research output: Contribution to journal › Article (Academic Journal) › peer-review

8 Citations (Scopus)

Abstract

A squaring circuit is introduced that boosts the tail current source of an opamp to improve its slew rate. It operates as a differential voltage magnitude detector, which generates opamp tail currents proportional to the magnitude (square) of the opamp's differential input voltage. Experimental results from a fabricated test chip verify current and slew rate enhancement between 900 and 1400% with respect to its initial value with <20% static current increase.

Original language	English
Pages (from-to)	219-220
Number of pages	2
Journal	Electronics Letters
Volume	51
Issue number	3
DOIs	https://doi.org/10.1049/el.2014.3975
Publication status	Published - 1 Feb 2015

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© The Institution of Engineering and Technology 2015

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Dr Maria D R Valero
- maria.valerobristol.acuk
- School of Electrical, Electronic and Mechanical Engineering - Senior Lecturer
- Cabot Institute for the Environment
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Cite this

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title = "Slew rate enhancement based on use of squaring circuits",

abstract = "A squaring circuit is introduced that boosts the tail current source of an opamp to improve its slew rate. It operates as a differential voltage magnitude detector, which generates opamp tail currents proportional to the magnitude (square) of the opamp's differential input voltage. Experimental results from a fabricated test chip verify current and slew rate enhancement between 900 and 1400\% with respect to its initial value with <20\% static current increase.",

author = "Valero, \{Maria D R\} and S Thoutam and J Ram{\'i}rez-Angulo and A Lopez-Martin and Carvajal, \{R G\}",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering and Technology 2015",

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doi = "10.1049/el.2014.3975",

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T1 - Slew rate enhancement based on use of squaring circuits

AU - Valero, Maria D R

AU - Thoutam, S

AU - Ramírez-Angulo, J

AU - Lopez-Martin, A

AU - Carvajal, R G

PY - 2015/2/1

Y1 - 2015/2/1

N2 - A squaring circuit is introduced that boosts the tail current source of an opamp to improve its slew rate. It operates as a differential voltage magnitude detector, which generates opamp tail currents proportional to the magnitude (square) of the opamp's differential input voltage. Experimental results from a fabricated test chip verify current and slew rate enhancement between 900 and 1400% with respect to its initial value with <20% static current increase.

AB - A squaring circuit is introduced that boosts the tail current source of an opamp to improve its slew rate. It operates as a differential voltage magnitude detector, which generates opamp tail currents proportional to the magnitude (square) of the opamp's differential input voltage. Experimental results from a fabricated test chip verify current and slew rate enhancement between 900 and 1400% with respect to its initial value with <20% static current increase.

U2 - 10.1049/el.2014.3975

DO - 10.1049/el.2014.3975

M3 - Article (Academic Journal)

SN - 0013-5194

VL - 51

SP - 219

EP - 220

JO - Electronics Letters

JF - Electronics Letters

IS - 3

ER -

Slew rate enhancement based on use of squaring circuits

Abstract

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Dr Maria D R Valero

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