LMV324IDR Ibishya bishya byumwimerere SOP14 Chip 4 umuyoboro muke wa voltage isohoka ikora amplifier ihuriweho na IC ibice

Ukurikije ibipimo byimikorere ikora, birashobora kugabanywamo ibyiciro bikurikira.
1, rusange-intego: rusange-intego-yimikorere ikora amplifier yagenewe intego rusange.Ikintu nyamukuru kiranga ubu bwoko bwibikoresho nigiciro gito, umubare munini wibicuruzwa, nibipimo byerekana birashobora kuba byiza gukoreshwa muri rusange.Urugero μA741 (op-amp imwe), LM358 (op-amp ebyiri), LM324 (enye op-amps), hamwe na tube-effet yumurima nkicyiciro cyo kwinjiza LF356 niko bimeze.Kugeza ubu nizo zikoreshwa cyane zikoreshwa mubikorwa byongera imbaraga.

2, Ubwoko Bwinshi bwo Kurwanya
Ubu bwoko bwimikorere ikora amplifier irangwa nuburyo butandukanye cyane bwo gutandukanya uburyo bwo kwinjiza impedance hamwe na bike cyane byinjiza kubogama, mubisanzwe bikuraho> 1GΩ ~ 1TΩ, hamwe na IB ya picoamps nkeya kugeza kuri picoamps icumi.Igipimo nyamukuru kugirango tugere kuri izo ntego ni ugukoresha ibiranga ibintu byinshi byinjira byinjira muri FETs kugirango habeho itandukaniro ryinjiza rya op-amp.Hamwe na FET nkicyiciro cyo kwinjiza, ntabwo byinjira gusa impedance, kwinjiza bike kubogama, hamwe nibyiza byumuvuduko mwinshi, umurongo mugari, n urusaku ruke, ariko ibyinjira byangiza voltage nini.Ibikoresho bisanzwe bihuriweho ni LF355, LF347 (bine op-amps), hamwe nimbogamizi zo kwinjiza CA3130, CA3140, nibindi [2]

3, Ubwoko bwo hasi yubushyuhe
Mubikoresho bisobanutse neza, ibimenyetso bidahwitse byerekana ibimenyetso, nibindi bikoresho byigenzura byikora, burigihe byifuzwa ko op-amp ya voltage ikuramo igomba kuba nto kandi idahinduka hamwe nubushyuhe.Ubushyuhe buke butwara ibikorwa byongera imbaraga byateguwe kubwiyi ntego.OP07, OP27, AD508, na ICL7650, icyuma gikonjesha-icyuma giciriritse kigizwe na MOSFETs, ni bimwe mu bisobanuro bihanitse cyane, ubushyuhe buke-bwogukoresha imbaraga zikoreshwa muri iki gihe.

4, Ubwoko bwihuta
Mubyihuta A / D na D / A bihindura hamwe na videwo zongera amashusho, igipimo cyo guhindura SR ya op-amp ihuriweho igomba kuba ndende kandi umurongo wunguka ubumwe BWG igomba kuba nini bihagije nkibisanzwe-intego rusange ihuriweho na op-amps ntabwo ibereye Porogaramu yihuta.Umuvuduko mwinshi op-amps urangwa ahanini nigipimo kinini cyo guhinduka hamwe nigisubizo kinini.Ibisanzwe op-amps ni LM318, μA715, nibindi, SR = 50 ~ 70V / us, BWG> 20MHz.

5,Ubwoko buke bwo gukoresha ingufu.
Nka nyungu nini yumuzunguruko wa elegitoronike, kwishyira hamwe ni ugukora imiyoboro igoye ntoya kandi yoroheje, bityo hamwe no kwagura urwego rwogukoresha ibikoresho byimukanwa, birakenewe ko hakoreshwa amashanyarazi make yumuriro, gukoresha ingufu nke zicyiciro cya amplifier ikoreshwa.Amashanyarazi akoreshwa cyane ni TL-022C, TL-060C, nibindi, imbaraga zayo zikoreshwa ni ± 2V ~ ± 18V, naho ikoreshwa ni 50 ~ 250μA.Ibicuruzwa bimwe bigeze kurwego rwa μW, kurugero, amashanyarazi ya ICL7600 ni 1.5V, naho ingufu ni 10mW, zishobora gukoreshwa na bateri imwe.

6, Umuvuduko mwinshi nubwoko bwimbaraga nyinshi
Ibisohoka bya voltage yimikorere ikora bigarukira cyane cyane kumashanyarazi.Mubikorwa bisanzwe byongerera imbaraga imbaraga, ibisohoka ntarengwa bya voltage mubisanzwe ni bike gusa bya volt kandi ibisohoka ni bike gusa bya milliamps.Kugirango wongere ibisohoka voltage cyangwa kongera ibisohoka, op-amp ihuriweho igomba kongerwaho hanze numuzunguruko.Umuvuduko mwinshi hamwe numuyoboro mwinshi wa op amps urashobora gusohora voltage nini numuyoboro mwinshi nta yandi mashanyarazi.Kurugero, D41 ihuriweho na op-amp irashobora gutanga voltage kugeza kuri V 150V kandi μA791 ihuriweho na op-amp irashobora gutanga amashanyarazi agera kuri 1A.

7,Ubwoko bwo kugenzura porogaramu
Muburyo bwibikoresho, hariho ikibazo cyurwego.Kugirango ubone voltage ihamye isohoka, birakenewe guhindura amplification ya amplifier ikora.Kurugero, amplifier ikora ifite ubunini bwinshuro 10, mugihe ibimenyetso byinjira ari 1mv, ibisohoka voltage ni 10mv, mugihe voltage yinjiza ari 0.1mv, ibisohoka ni 1mv gusa, kugirango ubone 10mv, gukuza bigomba kuba yahindutse kuri 100. Kurugero, PGA103A, mugenzura urwego rwa pin 1,2 kugirango uhindure amplification.