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  Uma Lakshmi

  • 2 months ago
  • Audio
  • Audio forum

  OPA604: OUTPUT IS OSCILLATING WITH THIS IC

  Part Number: OPA604 hi, i am working the below attached circuit for my input voltage range of 9mV to 14mV so that i can get the output from 0 to 2.7V . i am feeding 10mV at the input,the output is oscillating from .5 to 1V which i have observed in scope...
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  Marek Lis

  • 3 months ago
  • Audio
  • Audio forum

  RE: OPA604: Inverting voltage follower problem

  DC offset is tested in production so unless the part is damaged (check another unit) or oscillates ( check the output for stability with a scope ), it must be within the max limit. If the part does not osciallate or is damaged, please confirm the value...
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  Thomas Kuehl

  • over 1 year ago
  • Audio
  • Audio forum

  RE: OPA604: voltage follower's gain peeking of OPA2604

  Kuramochi-san, Did the information I provided resolve your OPA2604 voltage follower peaking questions? If so, please close this E2E inquiry. Regards, Thomas Precision Amplifiers Applications Engineering
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  Stephen Power

  • over 1 year ago
  • Audio
  • Audio forum

  OPA604: Absolute Maximum Voltage Rating

  • Resolved

  Part Number: OPA604 Hi The absolute maximum voltage rating for the opa604 is +/-25VDC. We
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  Dennis Goeke

  • over 1 year ago
  • Amplifiers
  • Amplifiers forum

  RE: OPA2604 EOL

  Alfred The OPA2604 is no longer available from TI or their distributors. The single channel OPA604 is still available... If the DIP package is required, the only audio part available is the OPA2134; lower bandwidth but still a very good audio OPAMP...
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  Tsuguhiko Asai

  • over 4 years ago
  • Amplifiers
  • Amplifiers forum

  OPA604's Offset Trim Pin

  Dear All, Let me ask about setting of Pin of OPA604. When a user does not use the Offset Voltage Trim function, may the user make Pin#1 and Pin#5 Open? Pin#1: Offset Trim Pin Pin#5: Offset Trim Pin Best Regards, Tsuguhiko Asai
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  Alan Howard

  • over 4 years ago
  • Amplifiers
  • Amplifiers forum

  OPA2604 and OPA604

  TI Thinks Resolved

  We are currently using the OPA2604 and are concerned about the Supply Voltage spec being limited to +/-20V and the 26 week lead time. We are considering changing two of the OPA604 and I would like to know if it has the same Supply Voltage issue and if...
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  Peter Rice

  • over 3 years ago
  • Amplifiers
  • Amplifiers forum

  OPA827: OPA827 voltage follower exhibits input oscillation with capacitative source

  Part Number: OPA827 In a recent design update, we replaced an OPA604 with an OPA827 in a position as a voltage follower (buffer) at the input of an instrument. The input arrives on a BNC connector and feeds the amplifier's non-inverting input through...
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  rahman yunus

  • over 6 years ago
  • Amplifiers
  • Amplifiers forum

  RE: AC current source with Howland circuit

  Hi all, Thank you for the advice. I will stick with OPA604 for the Howland circuit. I changed the Vcc and Vee supply and I need assistance to calculate the output impedance of Howland current pump circuit as shown in Fig.1. I performed simulation on...
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  Michael Gosselin

  • over 6 years ago
  • Audio
  • Audio forum

  RE: Trouble implementing PCM1798 application circuit

  Ok, thanks Don. I think all the voltage regulators survived, since they all seem to be still regulating correctly. I will replace the DAC IC and the op-amps, as you have suggested. One further question - in order to save cost, can I replace the recommended...

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