Products > Test Equipment

AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter

<< < (54/172) > >>

plazma:
I wonder what the MOQ would be for a slightly customized AN8002 or AN8008. Bonded TX pin and remove the fake CAT markings.

kalel:
There's another suspicious listing on eBay, I guess this model is becoming very popular?

Kalvin:
Got my 2 today. Nice and small. Useful when one runs out of DMMs and still need to measure something.

stj:

--- Quote from: plazma on July 21, 2017, 10:14:03 am ---I wonder what the MOQ would be for a slightly customized AN8002 or AN8008. Bonded TX pin and remove the fake CAT markings.

--- End quote ---

i wouldnt call the CAT markings fake without checking the detail - the fuses dont count.

b_force:

--- Quote from: floobydust on July 20, 2017, 08:27:17 pm ---I got better stability and accuracy after changing the big bypass cap.
I found 3VDC rail has ~30mVpp of noise, low freq. (1kHz) and high freq. from DMM IC charge-pump.

The PCB has places for four 22uF 1206 decoupling capacitors C10, C14, C15, C16 but what's populated is one through-hole 100uF 16V YXA electrolytic that has poor ESR.
Changed to 47uF+two of 22uF X7R 6.3V (total measures 84uF) and 1/3 the noise now. Readings are more consistent and repeatable. Before I always had 2-5 counts variation.

The ICL8069DCZQ 1.2Vref is pretty quiet, C11 0.1uF across it but datasheet gives 4.7uF so you could upsize.

--- End quote ---
Nice job.
These are easy hacks that everyone can do and are very affordable :)

Navigation

[0] Message Index

[#] Next page

[*] Previous page

There was an error while thanking
Thanking...
Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod