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Hi,
Can someone help my to identify SOT-23 devices with following codes:
1. GBG - also it has a small logo on it - but I do not know whom it is.
I have another chip with same marking (and obviously functionality) but with other logo - "f".
This must be for "FAichild". But what is GBG?
2...
Hi,
I need a drop in replacement for Zarlink ZL40167 op amp in line driver which is obsolete.
There its schematics attached. Does anybody know any cross ref part or at least very similar which would work in this circuit? Input from DAC is 1Vp-p.
Has somebody experience with layout of photodiode?
My task is to make array of photodiodes connected in parallel to 4 groups on a single die of about 3000x3000um size.
It is intended to work on single wavelength of 632.8nm The speed and sensitivity is not very important.
Another requirement is...
I would need to design a pcb which involves:
2pcs of Spartan FPGA's (BGA)
2pcs of TQFP CPLD
1 pcs of PBGA ethernet controller
2 SODIMM RAM sockets
and some other smaller parts which includes ADC's, DAC's, op amps, etc.
All has to be 6U eurocard.
If you think you can do this, let me know...
Thats what i want to simplify is the input stage. Any suggestions where to look for more modern drivers?
Also the old transformer is of unknown type so I need to replace it also.
I have been looking in to "Power Over Ethernet" transformer which looks to be of acceptable power rating. For...
Hello,
I have ~20 year old isolated(output floating on 200V) Filament power supply which I need to replace. Can somebody suggest some schematic using todays components (hopefully more simple). The specs are such:
output 0..3A, user variable with DAC and has to be contriolled, Voltage is about...
I'm afraid the oposite polarity of +0.4 can not be igneored as this MCP going to work with both - positive and negative particles (ions and electrons). So it might be reversible polarity is required.
I dont know what behaviour of HV PSU would be if we set control volatge above +0.4V for OUT1 and below +0.1 for OUT2. But I believe nothing critical as it goes on lower bound. Possiblu it is limited inside HV box. Also it can be limited on my controller.
If I would go for PLC solution with...
Yes, I'm thinking about this. My question is how much nose it coud apear in cable so dif amp might be of help there.
Another idea. I have a PLC which already has readily installed modules with 0..+10V outputs or also 4mA..20mA outputs. Do you think would it be possible to make some sort of...
It means is no mystery. I suspect diferential input should be more resistant to cable noise and ground loops. Right? My plan is to take simple Digital to Analog Converter controlled by FPGA and connect it directly to IN's.
I dont know what the MCP is here.
And no, this op amp circuit is not connected to High Voltages iteself. The outputs of this my op amp circuit (OUT#1) and (OUT#2) connetcs to a separete High Voltage PSU box. This box takes low voltages as a control signals. I just explained why so strange output...
I'm redoing control of Microcannel Plate.Sorry for incomplete info, and yes it was error. I just finished fully redraw it. I'm reconstructing schematics from existing PCB. Here it is. It was part of big device which I dont know.
There is HV power supply with 2 outputs - one is +400V...-2000V...
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