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firsttimedesigning
Joined: 04 Jul 2007
Posts: 98
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 26 Nov 2007 11:49 differential amplifier to signle ended amplifier |
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| assume that i have designed a differential amplifier and i have two outputs Vout+ and Vout-. How do I connect Vout+ and Vout- so that the opamp becomes an single ended amplifier? I am trying to use the opamp in an integrator.
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safwatonline
Joined: 19 Nov 2005
Posts: 1418
Helped: 172
Location: EGYPT
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26 Nov 2007 12:44 differential amplifier to signle ended amplifier |
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| u can take one of them only or u can use an unbalanced amplifier
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zyyang
Joined: 19 Jan 2006
Posts: 57
Helped: 2
Location: P.R. CHINA
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26 Nov 2007 16:08 differential amplifier to signle ended amplifier |
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| hi, the differential input and the single output may be adaptive for your application better, if you must use the fully differential opamp, then the second stage must be D2S
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btbass
Joined: 20 Jul 2001
Posts: 1187
Helped: 113
Location: Oberon
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26 Nov 2007 20:16 differential amplifier to signle ended amplifier |
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| Just use another op-amp as an output buffer configured as a unity gain differential amplifier.
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26 Nov 2007 20:16 Ads |
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strabush
Joined: 10 Apr 2002
Posts: 86
Helped: 6
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27 Nov 2007 7:25 Re: differential amplifier to signle ended amplifier |
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| You can sum the two output currents using a current mirror. You can see this in any elementary analog design book.
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songjunjian
Joined: 02 Aug 2007
Posts: 26
Helped: 3
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29 Nov 2007 7:29 Re: differential amplifier to signle ended amplifier |
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| Add differential end to single end circuit , may be you can use current mirror
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