Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: sparkyyyyy
  • Content: Threads
  • Order by date
  1. sparkyyyyy

    OPA2690

    Hello, I was wondering if any of you have used an OPA2690 in the unity gain configuration. I followed the data sheets suggestions of using a 25 Ohms resistor in between the output and inverting input to isolate the input capacitance from the output. I also followed the suggestions of a 50 Ohm...
  2. sparkyyyyy

    Terminations when driving DAC904 with ICS552-02 clock buffer

    Hello, I am using a ICS552-02 clock buffer with a 33 Ohm resistor in series (manufactures suggested 33 Ohms) to drive a DAC904 D/A converter at 100 MHz. The power supply for both the ICS552-02 and DAC904 are 3.3 Volts. The logic threshold for the DAC904 is 1/2 supply voltage which is 1.65...
  3. sparkyyyyy

    Wake on LAN

    Hello, I need some ideas on how to have have a Mini ITX computer send out a "power on" signal to my other instrument. I want the Ethernet to communicate with the computer and tell it to send a signal to a auxillary power supply to turn it on. Thanks,
  4. sparkyyyyy

    Switching power supplies

    Hello, Does anyone have a recommendation where I can find some good free information on all of the parameters dealing with switching power supplies. I am also interested in any good books on the subject. Thanks, sparkyyyyy
  5. sparkyyyyy

    Low power DDS chip

    I have a low power application. I need to find a direct digital synthesizer (DDS) that will have the following attributes: 10 Hz to 2 MHz sinewave Low power ( would like this to be under 500 mW) I have looked at the AD9854 DDS chip, but this draws too much power. Any help you can give me...
  6. sparkyyyyy

    90 degree

    Hi, I have an incoming frequency that is set to 60 Hz. I will call this my sync signal. I also have a 60 Hz signal that varies in phase and amplitude, which I will call my modulated signal. This signal is from the same source as my sync signal. Although the sync signal is not modulated. I...

Part and Inventory Search