Current-mode instrumentation amplifier

Current-mode instrumentation amplifier

A current-mode instrumentation amplifier (IA) includes first and second buffer amplifiers which receive a differential voltage (VINP-VINN) and provide output voltages at respective output nodes; a resistance R 1 is connected between the nodes and conducts a current IR1 that varies with VINP-VINN. In...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: BOTKER THOMAS L
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROLLING
ELECTRICITY
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator BOTKER THOMAS L
description A current-mode instrumentation amplifier (IA) includes first and second buffer amplifiers which receive a differential voltage (VINP-VINN) and provide output voltages at respective output nodes; a resistance R 1 is connected between the nodes and conducts a current IR1 that varies with VINP-VINN. In one embodiment, each amplifier includes a transistor connected in series with R 1 which conducts current IR1; these currents are coupled to the input and output terminals of a current mirror, preferably via respective virtual ground nodes such that the IA requires only one current mirror, to produce the IA's output voltage. To minimize DC mismatch errors, the IA is chopper-stabilized, with the buffer amplifiers and signal current paths chopped using a two-phase chopping cycle.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US7167051B2</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US7167051B2</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US7167051B23</originalsourceid><addsrcrecordid>eNrjZFBzLi0qSs0r0c3NT0lVyMwrLikqzQXyE0sy8_MUEnMLcjLTMlOLeBhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJfGiwuaGZuYGpoZORMRFKAGvsJ_c</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Current-mode instrumentation amplifier</title><source>esp@cenet</source><creator>BOTKER THOMAS L</creator><creatorcontrib>BOTKER THOMAS L</creatorcontrib><description>A current-mode instrumentation amplifier (IA) includes first and second buffer amplifiers which receive a differential voltage (VINP-VINN) and provide output voltages at respective output nodes; a resistance R 1 is connected between the nodes and conducts a current IR1 that varies with VINP-VINN. In one embodiment, each amplifier includes a transistor connected in series with R 1 which conducts current IR1; these currents are coupled to the input and output terminals of a current mirror, preferably via respective virtual ground nodes such that the IA requires only one current mirror, to produce the IA's output voltage. To minimize DC mismatch errors, the IA is chopper-stabilized, with the buffer amplifiers and signal current paths chopped using a two-phase chopping cycle.</description><language>eng</language><subject>AMPLIFIERS ; BASIC ELECTRONIC CIRCUITRY ; CONTROLLING ; ELECTRICITY ; PHYSICS ; REGULATING ; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</subject><creationdate>2007</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20070123&amp;DB=EPODOC&amp;CC=US&amp;NR=7167051B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20070123&amp;DB=EPODOC&amp;CC=US&amp;NR=7167051B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BOTKER THOMAS L</creatorcontrib><title>Current-mode instrumentation amplifier</title><description>A current-mode instrumentation amplifier (IA) includes first and second buffer amplifiers which receive a differential voltage (VINP-VINN) and provide output voltages at respective output nodes; a resistance R 1 is connected between the nodes and conducts a current IR1 that varies with VINP-VINN. In one embodiment, each amplifier includes a transistor connected in series with R 1 which conducts current IR1; these currents are coupled to the input and output terminals of a current mirror, preferably via respective virtual ground nodes such that the IA requires only one current mirror, to produce the IA's output voltage. To minimize DC mismatch errors, the IA is chopper-stabilized, with the buffer amplifiers and signal current paths chopped using a two-phase chopping cycle.</description><subject>AMPLIFIERS</subject><subject>BASIC ELECTRONIC CIRCUITRY</subject><subject>CONTROLLING</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>REGULATING</subject><subject>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2007</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBzLi0qSs0r0c3NT0lVyMwrLikqzQXyE0sy8_MUEnMLcjLTMlOLeBhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJfGiwuaGZuYGpoZORMRFKAGvsJ_c</recordid><startdate>20070123</startdate><enddate>20070123</enddate><creator>BOTKER THOMAS L</creator><scope>EVB</scope></search><sort><creationdate>20070123</creationdate><title>Current-mode instrumentation amplifier</title><author>BOTKER THOMAS L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US7167051B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2007</creationdate><topic>AMPLIFIERS</topic><topic>BASIC ELECTRONIC CIRCUITRY</topic><topic>CONTROLLING</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>REGULATING</topic><topic>SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES</topic><toplevel>online_resources</toplevel><creatorcontrib>BOTKER THOMAS L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BOTKER THOMAS L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Current-mode instrumentation amplifier</title><date>2007-01-23</date><risdate>2007</risdate><abstract>A current-mode instrumentation amplifier (IA) includes first and second buffer amplifiers which receive a differential voltage (VINP-VINN) and provide output voltages at respective output nodes; a resistance R 1 is connected between the nodes and conducts a current IR1 that varies with VINP-VINN. In one embodiment, each amplifier includes a transistor connected in series with R 1 which conducts current IR1; these currents are coupled to the input and output terminals of a current mirror, preferably via respective virtual ground nodes such that the IA requires only one current mirror, to produce the IA's output voltage. To minimize DC mismatch errors, the IA is chopper-stabilized, with the buffer amplifiers and signal current paths chopped using a two-phase chopping cycle.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US7167051B2
source esp@cenet
subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
CONTROLLING
ELECTRICITY
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
title Current-mode instrumentation amplifier
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-01T04%3A36%3A48IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=BOTKER%20THOMAS%20L&rft.date=2007-01-23&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS7167051B2%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true