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  • LMC662: Opamp Guard Polygon :Only in Top PCB layer or or all layers

    TI Thinks Resolved
    Part Number: LMC662 I have an opamp circuit as shown below. My board stack up is SIGNAL-GND-POWER-SIGNAL . I am providing a polygon to Guard the trace which is going to non-inverting the input of the opamp. The guard trace is connected to SMA connector…
    • Answered

  • LMC662: Measuring the voltage from a very high Input Impedance Source

    Resolved
    Part Number: LMC662 Other Parts Discussed in Thread: LMP7721 Dear Team, We need to measure the voltage from a charge pump that is present inside the ASIC. The Impedance of the charge pump is 200T Ohm. The team has designed a circuit with LMC662A which…
    • Resolved
    • Answered

  • LMC662: About LMC662 with voltage follower circuit.

    Resolved
    Part Number: LMC662 Other Parts Discussed in Thread: TLV9002 Hello. I made a circuit with a voltage follower circuit with a single 5V power supply using LMC662. When the input voltage exceeds about 3.5V, the output voltage jumps to 5V. Is this suspected…
    • Resolved
    • Answered

  • WEBENCH® Tools/LMC662: LMC662 Spice Model

    Resolved
    Part Number: LMC662 Tool/software: WEBENCH® Design Tools Hi, I have drawn up a circuit to include LMC662A which was the closest I could find to LMC662 in TINA-9. But there are no specifications included with it, so for instance, I could according to the…
    • Resolved
    • Answered

  • RE: LMC662: High temperature opamp (> 200 Deg C) to replace LMC662

    Resolved
    Ron Michallick, Greetings !! Thanks for the reply

  • LMC662: Oscillation - actual vs simulation

    TI Thinks Resolved
    Part Number: LMC662 Other Parts Discussed in Thread: OPA134 Customer built hardware boards based on unity gain schematic below. Oscillation was observed. To make circuit stable, a 6.8KOhm pull up resistor was added at output of Op-amp. However, customer…
    • Answered

  • LMC662: Input offset current appears to vastly different between lots

    Resolved
    Part Number: LMC662 I have a circuit that uses the LMC662 and in development, which used LDC HKAN parts, everything works as expected. However, when we went to production which used LDC 8CX7 parts, the performance of the circuit is very different. I've…
    • Resolved

  • LMC662: LMC662AIMX/NOPB is supplied by +/-12V source, (V+ - V-) is larger than maximum rating of 16V

    Part Number: LMC662 Other Parts Discussed in Thread: OPA2196 , LM6132 , OPA2192 Hello, I just took over an amplifying circuit board with LMC662AIMX/NOPB which is supplied by +/-12V source, it's obvious that the op amp is over stressed according to the datasheet…

  • LMC662: LMC662 600ohm drive

    Part Number: LMC662 Other Parts Discussed in Thread: OPA1652 , LMC6032 , LMV722 , TL3414A , TLV2314 , TLV2316 Dear Sir I saw LMC662 have 600ohm drive capability May I know 600ohm is a special feature in OP ?? or all of the latest TLV series OP have the same…
    • Answered

  • RE: TLV9102: INPUT Impedance of TLV9102

    Resolved
    Hi Hari, I don't think that the output of this charge pump is higher impedant or shows less leakage current than the input of an ultra low input current OPAmp like the LMC662. Also, the MEMS will shurely draw much more current than the input current of…

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