Hey Michael,
We offer spice models that can be found on the product page under Design & development > Design Tools & simulation. These work in Tina Ti and Pspice for Ti. I am unsure if you can use them directly in Altium but maybe there is a converter…
Hello sir,
Actually, I designed this circuit for 2.25KHz central frequency. I may have done some calculation wrong definitely. But instead of using the source of 2.26KHz, the results are not improving. I am getting super confused now, as per my calculation…
Jit,
Since the power supply voltage range for OPA27 is from +/-4V to +/-22V (thus a total supply from 8V to 44V), it is pefectly fine to operate it on +28V single supply.
Hi Steve,
it's not wise at all to move too far away from the recommended feedback resistance when using a current feedback OPAmp. Even if the simulation shows a stable performance with a phase margin of 30°, the OPAmp can become instable with a real…
Other Parts Discussed in Thread: OPA27 I am trying to use the OPA633 buffer to replace Intersil HA3-5002-5Z which is now obsolete. Our product has been in production some time, and we do not want to re-design it yet. The OPA633 is the only device that…
Other Parts Discussed in Thread: OPA27 Dear sir
i am using OPA27 op-amp as i observed it gives more than 1volt output with 0v at 5mv signal input.
I also tried this op amp with unity gain but output was 1.28 volt.
How i can solve this issues.
…
Other Parts Discussed in Thread: OPA37 , OPA27 I need a hydrophone preamplifier circuit with frequency response in the range of 2Hz to 30 Khz with single voltage supply. The data sheet of OPA37 contains a hydrophone preamp for EDO6166 transducer with…
Other Parts Discussed in Thread: OPA227 , OPA27 , OP27 , OPA2227 , OPA2228 , OPA2140 , OPA2376 , OPA141 , OPA376 Hello,
I have a legacy design based on OPA27. The circuitry is prone to RFI rectification problem in high MHz and GHz band. I am planning…
Eva,
The OPA27 has a GBW of 8MHz. In a gain of 101, this stage will only have a bandwidth of 80kHz. The pole that this creates inside the larger feedback loop is sure to create serious stability problems. The frequency response simulation will likewise…
Peng,
The OPA37 is a decompensated version of OPA27 that is stable only in gain of 5 or greater (see below) while the photo-diode circuit you use is effectively in a unity-gain configuration, which causes instability issue you experience; you need…
