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  • OPA2677: driving large capacitive loads and with feedback

    Part Number: OPA2677 Other Parts Discussed in Thread: TINA-TI Tool/software: Hi, I'm trying to use the OPA2677 current feedback op-amp to drive a large capacitive load (around 10 uF). The op-amp is configured as non-inverting and with a gain of 2x using…

  • OPA2677: Driving a variable load without (or lowest) effect on the gain

    Part Number: OPA2677 Tool/software: Hello, I am using the OPA2677 to drive multiple twisted pair lines in parallel, resulting in a variable load. The input is a differential signal from a DAC with an output impedance of approximately 19Ω. I require…
    • Answered

  • OPA2677: HSOIC (DDA) package CAE fooprint differs from datasheet recommendation

    Resolved
    Part Number: OPA2677 Hello, the TI page for OPA2677 provides design resources, see here: www.ti.com/.../OPA2677 This page offers links to download CAD/CAE symbols and footprints for all available packages. I'm interested in the HSOIC (DDA) package…
    • Resolved
    • Answered

  • OPA2677: Bridge configuration for driving small peltier (tec)

    Resolved
    Part Number: OPA2677 Other Parts Discussed in Thread: OPA567 , OPA569 , OPA2675 Hello, I need to drive a small thermoelectric device (peltier) in order to control the temperature of a laser diode. The peltier operating range is +/- 100 mA with a compliance…
    • Resolved

  • OPA2677: Overheating on power up

    TI Thinks Resolved
    Part Number: OPA2677 Other Parts Discussed in Thread: TINA-TI The OPA2677 is getting really hot after power up. I think the part is latching up. I'm using +-6v power rails and I have 0 volt input and no load. If I disconnect the thermal pad the problem…

  • OPA2677: any high output current high speed opamp could drive 5 ohms loads

    TI Thinks Resolved
    Part Number: OPA2677 Hi team, I am looking for a high output current amplifier for my mobile phone customer. They are requiring the amp: 1. Output 300mA current on 5 ohms load; 2. The bandwidth need to be over 100mA; 3. The package need to be…
    • Answered

  • RE: OPA2677 IBIS model

    Resolved
    Hello, The modling team let me know that since there is no digital IO on the OPA2677, it is not suitable for an IBIS model. Please use the TINA or PSICE model that is already available. Thanks,

  • OPA2677 TINA-TI model is missing pins 5, 6 and 7

    Other Parts Discussed in Thread: TINA-TI , OPA2677 I'm attempting to simulate a differential line driver circuit using the OPA2677. The TINA-TI model for this part, when instantiated within TINA-TI, is missing pins 5, 6, and 7. This is the non-inverting…
    • Answered

  • THS3121: Improved driver for peltier (TEC)?

    Resolved
    Part Number: THS3121 Other Parts Discussed in Thread: OPA2677 , , TINA-TI , OPA2675 Tool/software: Hello, a while ago I discussed a driver for a small thermoelectric cooler ("TEC" or peltier element). The circuit was based on two inverting current-feedback…
    • Resolved

  • BUF634A: Paralleling devices

    Part Number: BUF634A Other Parts Discussed in Thread: OPA2677 , , OPA2670 , BUF634 Tool/software: Dear Support Team, We consider paralleling a few (say, four) BUF634As to increase the output current. Is it advisable? We cannot find any notes in this…

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