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  • OPA172: Increase in phase noise in ovenized oscillator

    TI Thinks Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: OPA171 Tool/software: Hello, So, the problem we're having is that we are seeing an increase in phase noise in our ovenized oscillator running at close to 100 Celsius. Because of that we're…

  • OPA172: Coupling capacitor polarity confusion during interfacing

    TI Thinks Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: PCM2903C Tool/software: In TIDU765 reference design, the tantulum coupling capacitors are placed in such a way that the anode is towards the IC itself(decoded from PCB picture on front page). My basic…
    • Answered

  • OPA172: Current shifter for VCc=5V instead of VCc= 12v

    Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: OPA2197 , OPA197 Tool/software: 4278.350mA,0mA to 503mA,519mA offset ground shift.TSC Hi sir , last Year we have communicated for Current level shifter circuit . we have used P1 = XP9561GI…
    • Resolved

  • OPA172: TIDU765_Facing issue with arrived component values for less sensitive microphone

    TI Thinks Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: JFE150 , OPA1656 Tool/software: We've considered the TIDU765 reference design & trying to adapt the circuit as per the microphone specification. The microphone that's readily available(CB Cobra microphone…
    • Answered

  • OPA172: AC-couple transimpedance amplifier circuit

    Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: PSPICE-FOR-TI , TINA-TI Tool/software: Hello, I am currently trying to build this circuit in LTSpice: AC-coupled transimpedance amplifier circuit (ti.com) This is my current circuit along with…
    • Resolved

  • OPA172: Not a rail to rail part after all.

    Part Number: OPA172 Even though the part is advertised a s a rail to rail output op amp, it is not. The output does not get to the positive rail. TI, you wasted my time.
    • Answered

  • OPA172: Phase jumps when modifying high frequency feedback in Tina-TI (AC analysis)

    Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: TINA-TI , Hello, using Tina-TI, I'm running AC analysis for this fairly simple circuit. Its *.tsc file is attached below. According to application note SBOA325, capacitor C1 provides a high…
    • Resolved

  • OPA172: i need to convert 4 input current to 4 output current is it possible .

    TI Thinks Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: TL4051B12 , TLV9104 , OPA4186 , OPA2186 , TLV4051 Dear Sir/Madam, refer to following attachment I like to have 2 pin input current which starting from 350mA to be convert to 2 pin new 503mA and…

  • OPA172: OPA172

    Part Number: OPA172 Other Parts Discussed in Thread: TLV9061 Hi Sir, The question is not exactly for OPA172 but looking for microphone preamp solution. My customer searching a suitable low voltage microphone compression IC for ANC analog feedforward…
    • Answered

  • OPA172: OPA172 – Internal series resistor 2.5k ohm in each IN-/IN+

    Resolved
    Part Number: OPA172 Other Parts Discussed in Thread: LM324 May I know the OPA172 has a internal series resistor 2.5k ohm in each IN- and IN+? We had try to short IN- to ground (base on figure 46). We find OPA172 has higher short current than LM324.…
    • Resolved

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