AD538 SPICE model?

Dec 18, 2004 7 Replies

Hi.



Anybody here has a SPICE model for AD538 IC? It's IC used for applications like multiplication, division and square root of voltage.



My simulators are SIMetrix and LTSpice.



Thanks!



-- Chaos Master®, posting from Canoas, Brazil - 29.55° S / 51.11° W



"People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee



NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!



The block diagram probably has enough detail for you to create your own model.

Leon

This is Leon Heller for forever:

Here comes the problem!

I almost don't have any knowledge in making models from a block diagram :(

-- Chaos Master®, posting from Canoas, Brazil - 29.55° S / 51.11° W

"People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee

NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!

Then now would be a good time to start learning.

Kevin Aylward snipped-for-privacy@anasoft.co.uk

formatting link
SuperSpice, a very affordable Mixed-Mode Windows Simulator with Schematic Capture, Waveform Display, FFT's and Filter Design.

Any garden variety transistor will work, just choose one small enough so it doesn't limit bandwidth.

...Jim Thompson

| James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC\'s and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.

It's just a schematic; it even gives the resistor values. Make some assumtions about the transistors, and it should be quite easy.

Leon

This is Leon Heller for forever:

Then, it's easier. I will try to make my own model. I think I can draw the schematic and make it into netlist for model.

[]s

-- Chaos Master®, posting from Canoas, Brazil - 29.55° S / 51.11° W

"People told me I can't dress like a fairy. I say, I'm in a rock band and I can do what the hell I want!" -- Amy Lee

NOTE: messages are automatically sent after 00:00AM! I'm on dial-up!

One doesn't need transistors. e.g.

..subckt AD538 out 1 2 3 ....

b1 out 0 v= v(1)*v(2)/v(3) .... ..ends

Or whatever it actually does.

Kevin Aylward snipped-for-privacy@anasoft.co.uk

formatting link
SuperSpice, a very affordable Mixed-Mode Windows Simulator with Schematic Capture, Waveform Display, FFT's and Filter Design.

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