Parameter. LF LF LF///B. LF LF Units. Typ. Max. Typ. Max. Typ. Max. Typ. Max. Typ .. This datasheet has been download from. These are the first monolithic JFET input operational ampli- fiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar. These are the first monolithic JFET input operational amplifiers to incorporate well matched, high voltage JFETs on the same chip with standard bipolar.
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LF356 JFET Op Amp IC
You could downsize the value of Rf to, say, 20k. It may not be proper to call such a circuit as an integrator circuit. Just to verify that I didn’t make any mistake when importing the op amp model, I did the same simulation with another op amp OPA and the simulation results were reasonable see image below.
Dec 242: This messes up the dc operating point and you no longer have meaningful results. LF ic datasheet discussion.
Hi sixcab, thanks a lot for your very detailed reply and datashheet totally clarifies what I confused about LF Hierarchical block is unconnected 3.
The result now looks right now. What I want is the high gain as much as possible at low f and a constant gain at relative high f. This material is intended for free software support.
Following your point on the input offset voltage of 3mV of LF, I added such amount of DC value in my signal source of my original diagram and repeated the simulation. I am ‘injecting’ a voltage and measure the gain around the loop. Choosing IC with EN signal 2. Home Questions Tags Users Unanswered. Heat sinks, Part 2: May I ask you for what datashfet you have a resistor in the feedback path?
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I used the LTpsice to simulate the fatasheet performance of a integrator circuit with op amp LF which is a JFET input op amp but I go strange results see the image below. Input port and input output port declaration in top module 2. The other type would be LFBN. But you want high gain at dc—not good with the offset.
Jul 6 at The ‘N’ just means it has a DIL package. The poles for the second and dahasheet stage are probably wrong. They don’t to me. Why did you get good results for the other opamp OPA on the first try?
LF Datasheet(PDF) – National Semiconductor (TI)
You have to make a tradeoff. If I want to build an integrator circuit like this, does this EOS always saturate the output of the circuit? Synthesized tuning, Part 2: