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Minimum feedback resistor Rf for given opamp ex: opa2134
i have a problem that needs solving; What is the minimum feedback resistor for modern opamps like opa2134 ? can it be 100 ohm? Im asking because in lt1028 datasheet its says it cant be <100ohm...
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calculate value for resistor in
I have an LMC6001 op-amp, and I would like to build the ph probe amplifier featured in the datasheet. Unfortunately, I am not sure what R9 is or should be. Does R9 control slew rate? How would I...
View ArticleFind v1 and v2 of a summing amplifier when it is in series with another Op-Amp
There is a summing amplifier with two AC power sources (v1+v2,) each connected to a different Ground. Each of these sources connect to a resistor (R1+R2,) and then to a summing point, which branches...
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Buffer OPAMP feedback resistor
I am using an LT1630 as a buffer... I know its not the greatest OPAMP for the job because it has fairly Hi input current, but It has good DC characteristic, HI current drive, and rail to rail...
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Need help choosing resistors for difference amplifier
In the circuit below I am trying to achieve 15.56 gain on IC2. The following combinations (in kOhms) are fairly close: 20/1.3 or 200/13 = 15.38 47/3 or 470/30 = 15.67 51/3.3 or 510/33 = 15.45 56/3.6...
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