LMAN/NOPB Texas Instruments Operational Amplifiers – Op Amps OP Amp datasheet, inventory, & pricing. LMA/LMA/LMA. Operational Amplifiers. General Description. The LMA series are general purpose operational amplifi- ers which feature. LMA. LMA s INPUT OFFSET VOLTAGE mV. 2mV s INPUT BIAS CURRENT. 25nA. 70nA s INPUT OFFSET CURRENT nA. 2nA s SLEW RATE AS.
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Post as a guest Name. Dimitri Petrucci 96 7. Any reason not to use an IC designed to perform as comparator?
As long as the OpAmp works in a open feedback loop as a comparator no feedback connection, maximum gain both will output similar waveforms.
The second schematic is not equal to the first. The behaviour of the diode voltage limiter is datashfet to this circuit:. In your second schematic the output of the OpAmp will be like the first waveform, but because of the resitor divider will be scaled and moved up so its minimum is about 0V and its maximum is about 5.
Texas Instruments/TI LMAN – PDF Datasheet – General Purpose Amplifiers In Stock |
This will have effect on the load you can attach to this circuit. The first makes voltage limiting on the low power circuit of the OpAmp and then the ouput emitter follower as its name says outputs a voltage with similar waveform but with higher load capability.
Would it still work like a comparator? Without a datasheet, this is a non-question.
LM301AN Datasheet Download
The behaviour of the diode voltage limiter is similar to this circuit: Email Required, but never shown. The second will work with minimal distortion only with highest impedance inputs – about 1 MegaOhm, while the first can work with kOhm loads without an issue.
Similar thing is done on Fig. I updated the post with a modified schematic, that way would be equivalent? Sign up or log in Sign up using Google. The difference will apper when you close the dxtasheet loop for some exact gain.
Todor Simeonov 1, 3 DimitriPetrucci see the update.
Update The second schematic is not equal to the first.