Marek,
thank you very much for your fast feedback. Maybe this picture has a better resolution to see this sort of "amplitude modulation" on the input sinusoid:
You have seconds on X axis and VOUT in mV on Y axis, with amplitude scaled to input.…
There are two key presentation I attach for you to study. The "Design and Apps Current Sources" contains an important section on the Improved Howland Current pump, especially on driving inductive loads. The "Dual FB Beta_plus and Beta_minus" gives an…
4-20mA transmitter will not work for this application. You will need an wideband op amp Possible circuit arrangement is an improved Howland Current pump detailed in attached powerpoint. Please study the attached collateral. You will need to use a avery…
Other Parts Discussed in Thread: TPS51396A , TPS51312 , TPS7A7002 Dear ：
Could you help me find Ti part number to replace Richtek power pin to pin compatible ？ the richtech datasheet as attached，the full part number need replace are RT6228AGQUF & RT8068AZQW…
Hi Cameron,
Cameron Wutzke said: Ben- turns out a customer has a Mouser tape cut. is it possible that they repackaged the tape & reel? Spacing is different on this cut.
I would not know whether or not Mouser would repackage the units.
Cameron Wutzke…
The main difference is Improved Howland Current Pump can drive higher currents into the load with very little voltage drop across the current sense resistor. Most applications that want to do a current source use the Improved Howland Current Pump. See…
I tried inserting a PDF file of the schematic below but it didn't work. How do I attach a PDF file?
The chip is used in a UV meter that OAI manufactures.
0306-152-01H.pdf
Other Parts Discussed in Thread: OPA277 Hi,
What is the difference between OPA277UA/2K5 and OPA277UA/2K5E4 ? From the data sheet, I could not find any difference. Kindly advise.
I have referred the 'package option addendum' page. opa277.pdf
Regards…
