1NTHRU 1N ELECTRICAL CHARACTERISTICS. Ratings at 25’C ambient temperature unless otherwise specified. Type. 1N 1N 1N 1N Zener Diodes are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 1N Zener Diodes. 1N THRU 1N TA = 25°C. IR mA. Maximum regulator current(2). IZM mA. 1N . This datasheet has been download from.

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New Jersey Semiconductor

Here I have the image of a signal in the output of U2, and the output is shown in green in the graph sorry for the poor quality. Now I have the same circuit but with that 1N zener connected across and the output signal behaves like below: Yet, the real question is I don’t get 1h4728 fact the zener is being able to clamp the datasheeet voltage without a resistor in series with it. In my understanding the zener should face the whole sinusoidal wave since there’s no resistor in series to share the remaining voltage with.

I tried that on real circuits with TL OpAmp and the same happened. I’ve also checked the TL output resistance and it’s about 0. Datasheer, what exactly is going on in this circuit?

Shouldn’t a zener have a series resistor in order to clamp correctly? The absolute continuous ratings for the TL state that the output short-circuit duration is ‘continuous’.


This means that there is current limiting built in. The low output impedance you quoted is conditional on the output stage not being overloaded. Looking at Figure 7 the positive current limit applicable to your design is 20 mA but temperature dependent.

I would design for 10 mA maximum. There are several things to consider as Transistor points out and another consideration is this graph – how much output voltage swing you can get for a given load resistance: As the zener voltage starts to be exceeded, the load resistance that it produces drops datashheet down to a few tens of ohms so, as per the graph above you would expect the voltage to become clamped at around the zener point.

The 1m4728 impedance assessment in your datashedt I think is based on 1m4728 However, this is a “small signal” graph. I know it’s not clearly stated that it is for small signals but it’s something that you get used to seeing and understanding. It’s a calculated graph based on the open-loop gain graph and the amount of gain a particular op-amp may be configured for. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.

1N4728 Datasheet

Home Questions Tags Users Unanswered. Thank you for any help.

Iron Maiden 7. It made my thoughts clearer now. I wouldn’t see it so easily like you did in the datasheet, thank you very much. Andy aka k 10 Could I think of the situation as a dynamic output impedance being changed when the current begins to be limited by the opamp? And as a result this internal output impedance would behave like the ”series” resistor or that’s incorrect?


1N Datasheet PDF –

The small signal output impedance is due to the op-amp open-loop gain not being infinite. There is a DC limit usually of k to k. Not sure if this answers your comment? What exactly would be the loading in this case?

Even feedback resistors can be regarded as a load – anything that takes current from the output pin. If you have a simulator handy it’s easy to simulate. I guess I’ve 1n428 the idea. It has been clearer since the first comment up to now. Tony EE rocketscientist 62k 2 21 Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email 1h4728 Password. Post as a guest Name. Email Required, but never shown. Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies.