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WEBENCH® Design Center

Welcome to the WEBENCH® Design Center Section of the TI E2E Support Community. Ask questions, share knowledge, explore ideas, and help solve problems with fellow engineers. To post a question, click on the forum tab then "New Post".

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INA333
  • amplifier
  • bug
  • EMG
  • macro
  • model
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  • OPA2333
  • Operating point not found
  • Problems With TINA
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Related Posts
  • Forum Post: Re: INA333 EMG Instrumentation Amplifier

    Herman Theodorus - WEBENCH Design Center Herman Theodorus - WEBENCH Design Center
    Hassan, Which version of Pspice/OrCad do you use? Is it 15.7 and above? Herman
    on Aug 2, 2010
  • Forum Post: Re: INA333 EMG Instrumentation Amplifier

    Herman Theodorus - WEBENCH Design Center Herman Theodorus - WEBENCH Design Center
    I worked on the test benches today and will be posting them most likely tomorrow. Regarding the footprint/dimensions.. We usually put the dimension/footprint for PCB layout purposes on our datasheet. For instance if you go into our datasheet of INA333: http://focus.ti.com...
    on Aug 3, 2010
  • Forum Post: Re: INA333 EMG Instrumentation Amplifier

    Herman Theodorus - WEBENCH Design Center Herman Theodorus - WEBENCH Design Center
    Hassan, Attached is the .zip; it includes all the necessary files so that you can just click and run. We will be releasing also this .zip file into our official INA333 product folder website just in case you need it in the future. You mentioned that you're new to OrCAD 16.0, so I am...
    on Aug 3, 2010
  • Forum Post: Re: INA333 EMG Instrumentation Amplifier

    Rick Downs - WEBENCH Design Center Rick Downs - WEBENCH Design Center
    To answer your question correctly, I need more information. Yes, with a 3.6V V+, the output can swing to 3.3V - but that depends upon the load. What is the load that the INA is driving? You say 10-15mV signal is on Vin+; what is on Vin-? What is V-? (I assume it's zero since you said it's...
    on Aug 10, 2010
  • Forum Post: Re: INA333 EMG Instrumentation Amplifier

    Rick Downs - WEBENCH Design Center Rick Downs - WEBENCH Design Center
    You might want to review this discussion in the Precision Amplifier forum. It's from someone trying to do something similar. I hesitate to give you a recommended circuit without knowing all the details about your sensor. Contact impedances and offsets can severely limit the amount of gain you...
    on Aug 12, 2010
  • Forum Post: INA333 Multisim 10 Simulation

    Dongfeng Xie Dongfeng Xie
    I have downloaded the TI-TINA simulation file of INA333 . The simulation results could come out but the speed of simulation was too slow. So I got the Macromodel file of INA333 from the TI-TINA simulation file. Then I tried to make a model of INA333 using Multisim 10 and the macromodel filr------ina333...
    on Sep 4, 2010
  • Forum Post: Re: Importing TI Pspice models into OrCAD 16.3

    Marcos López - WEBENCH Design Center Marcos López - WEBENCH Design Center
    David, STEP 1. In order to use the model provided in the web first you need to create a new analog and mixed AD project. Ignore this if you already have a project. See image below. If asked to create the project based on an existing project, you can select the AnalogGNDSymbol.opj. This will...
    on Feb 1, 2011
  • Forum Post: Re: Importing TI Pspice models into OrCAD 16.3

    Herman Theodorus - WEBENCH Design Center Herman Theodorus - WEBENCH Design Center
    David, Attached is a tutorial for pspice. On the chapter #3 of this document, it explains how to create a symbol from a netlist. It's basically importing process. (Please visit the site to view this file) BTW, I am not sure if you're aware that we already have INA333 imported in Pspice: http...
    on Feb 1, 2011
  • Forum Post: Is the INA333 TINA model working properly?

    Andrea Fanelli Andrea Fanelli
    Hi, I'm trying to simulate a circuit using TINA-TI. I'm using the the INA333 component in the simulation, but when I run the simulation, I get this error: "Component: U3.D17" I think there is a problem with the INA333 model. Indeed if I replace the INA333 model...
    on Nov 9, 2011
  • Forum Post: EMG circuit simulation, TINA - Operating point not found

    Usama Imtiaz Usama Imtiaz
    Hi, I've been trying to find the transfer function of my circuit. I am not very familiar with TINA. Though my actual circuit has some more modules, in this circuit, I removed the RLD circuitry, as well as an opamp-regulated reference voltage (replaced by 1.5V battery), Also I removed all the supply...
    on Nov 29, 2011
  • Forum Post: Re: EMG circuit simulation, TINA - Operating point not found

    Neil Albaugh Neil Albaugh
    Usama; Here is how I made it work-- add a 50M resistor from each INA333 input to ground and change the circuit to operate on +/-1.5V bipolar supplies instead of a single +3V supply. I can't explain why the circuit doesn't converge on a single supply-- sorry.
    on Nov 30, 2011
  • Forum Post: SR # 1-819181324 Regarding INA333

    Dean Micheli1 Dean Micheli1
    I am getting no output from the INA333 when testing on a breadboard using a TINA Verified Circuit The application is a Microphone Buffer amplifier with unbalanced Input, I have very limited power to work with (single supply between 1.8V-2.2V when the supply is pulled down by the load. I am trying to...
    on Sep 13, 2012
  • Forum Post: INA333 Tina-TI model input terminals are wrong.

    Frank Butty Frank Butty
    The + and - terminals of the stock Tina-TI part appear to be reversed. The spice model is also incorrect (hence, two wrongs to make a right, for the simulation at least). If you are using the INA333 model provided by TI make be sure to correct the following section of the model: Was: *PINOUT...
    on Jan 9, 2013
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