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  • TLC2272A: Amplifiers forum

    Resolved
    Part Number: TLC2272A Hi, on schematics attached: +3V3 = 3V30 -3V3 = -2V72 (less than expected)OPAMP is not loaded (I've cut the wire represented by a red cross) when INPUT is 0..2.5V, the output (pin 7) gets the same value (difference is some few…
    • Resolved

  • TLC2272A: Buffer follower not following

    TI Thinks Resolved
    Part Number: TLC2272A Other Parts Discussed in Thread: TLC2272 , I am investigating a production issue for a legacy design where a tlc2272acpwr opamp is configured in a buffer follower configuration with the output tied to - and the + input is driven by…

  • RE: OPA2227-EP: Incoherence in open loop gain graph between simulation and datasheet

    Hi Marek, Thank you for answering. How come the datasheet doesn't say directly that the Y axis correspond to the phase margin? For someone who is not really used to op amp, it can be very confusing and not straightforward to guess that in some datasheet…
    • Answered

  • RE: tlc2272a: Peak detector circuit cannot faithfully deliver output near zero volts. Chip replacement necessary.

    Resolved
    Marek, Thank you for your reply. This is the sort of thing that happens when one inherits a circuit. Looks like I'll be shopping for a pin-compatible replacement designed to function at the supply voltage. Mark
    • Answered

  • TINA-TI TLC2272A Model Question

    Resolved
    Other Parts Discussed in Thread: TLC2272 , INA128 , UA741 , TLC2272A , LM741 , OPA171 , OPA141 , OPA140 , OPA170 *EDIT* Sadly I just realized that the TLC2272 (while listed on TI's cross reference sheet as the replacement for AD822) is not a replacement in all…
    • Resolved

  • Poor performance of active high pass filter at high gain using TLC2272A

    Other Parts Discussed in Thread: TLC2272A I am using the TLC2272A to design a Sallen-Key HPF. The target -3dB is 25 Hz. I have tried a few designs playing with the passband gain. The three gain values I have tried are x5, x25 and x50. I have noticed that…

  • TLC2272M: Technical queries regarding TLC2272/TLC2272M

    TI Thinks Resolved
    Part Number: TLC2272M Other Parts Discussed in Thread: TLC2272 , TLC2272A Hi Colleagues, I have a few queries regarding the TLC2272M, to which I need some clarification. The datasheet in question is this one . Two parameters are given for the input offset…

  • RE: TLC2272: Output Configuration understanding

    Hello Mit, You are driving the TLC2272A, U7A input with an input common-mode voltage (TP29) very close to 0 V. The input common-mode voltage range goes down to about -0.3 V on the low end so that is okay. However, the issue keeping the output voltage…
    • Answered

  • TLC2272M: Worst Case voltage offset for a voltage follower that uses a TLC2272M op-amp

    Resolved
    Part Number: TLC2272M Other Parts Discussed in Thread: TLC2272 , TLC2272A , TLC2272AM I am conducting a error analysis on a circuit containing the TLC2272M as a voltage follower in the configuration. I read the datasheet provided at the link http://www.ti…
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    • Answered

  • [FAQ] What precision amplifiers are right for an Inverter & Motor Control system (IMC)?

    Resolved
    Other Parts Discussed in Thread: LMV841-Q1 , TLV197-Q1 , OPA197-Q1 , ALM2402F-Q1 , ALM2403-Q1 , OPA192-Q1 , OPA322-Q1 , OPA388-Q1 Inverter and Motor Control systems are used in electric vehicles to manipulate an AC signal with pulse width modulation that ultimately…
    • Resolved

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