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  • OPA4277: opa4277 analog

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    Part Number: OPA4277 Other Parts Discussed in Thread: OPA4196 Dear Sir, please answer I need to pick up a replacement of OP747AR amplifier. The case may be different, it is important that the parameters are close. Important: power supply +/- 15 V, rail…
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  • OPA4277: What is modern replacement of OPA4277 chip?

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    Part Number: OPA4277 Other Parts Discussed in Thread: OPA4192 , OPA4196 , OPA4188 , OPA277 , OPA2277 , OPA4388 Hi, In my application I use a few OPA4277 chips. Sometimes I have to make manual offset correction of some amplifiers due to big factory input offset…
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  • OPA4277: Opamp Heats up

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    Part Number: OPA4277 Other Parts Discussed in Thread: OPA4227 , LMC6464 , LMC6064 HELLO, I am using this op-amp for small application. its temp is high for simple inverting amplifier also. pls tell the solution for that or whats the reason behind this …
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  • OPA4277-EP: Failure Modes

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    Part Number: OPA4277-EP Other Parts Discussed in Thread: OPA4277 , We are having one design using OPA4277. In our application, we use +6V/-6V power supply to OPA4277, it's a simple DC inverter and level shifting circuit. Due to heavily capacitance (0.2uF…
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  • RE: OPA188: Unipolar to Bipolar Conversion

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    John, Yes, the OPA4277 is a good choice. Both devices have good offset, and offset drift. The OPA4277 is a bipolar device, and the OPA188 is a chopper CMOS amplifier. The key characteristic on chopper amplimers is that they have good offset and offset…
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  • OPA4277-EP: differnt between OPA4277 and OPA4277-EP

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    Part Number: OPA4277-EP Other Parts Discussed in Thread: OPA4277 , Where exactly is the difference between the operational amplifiers OPA4277 and OPA4277-EP. I could not really see any differences in the data sheets except for an extended temperature range…
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  • RE: OPA277: Signal conditiong and offset

    Hi Rajesh, I believe there is some disconnect within the naming nomenclature you use - bipolar op amp typical refers to bipolar input transistor while you most likely mean by this dua l supp ly. Having said that, assuming you properly decouple the power supplies…

  • OPA4277: opa4277

    Part Number: OPA4277 I have only one CT, and I want to deliver the signal to 4 DSP at the same time. Can I use OP amp to do that? How to assure 4 DSP get the same and correct information?
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  • OPA4277: OPA4277 for the internal schematic

    Resolved
    Part Number: OPA4277 Other Parts Discussed in Thread: OPA4132 Hi team, The customer would like to get the internal schematic of the OPA4277 device. Can we provide this for the customer? Best Wishes, Mickey Zhang Asia Customer Support Center Texas Ins…
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  • OPA4277: OPA4277 for the internal circuit question

    Part Number: OPA4277 Hi team, The customer is using OPA4277. His products have been mass production. Now there are four boards problems. Others are fine. So the customer believe his schematic is correct. The issue is as below: One of In+_x pin is shorted…

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