Part Number: ISO224EVM Other Parts Discussed in Thread: ISO224 In the Eval schematic of ISO224 TLV70450 is used to provide VDD1 to ISO224.
But the max voltage that TLV70450 can provide is 5V and according to the datasheet of ISO224 the max VDD1 we can…
Part Number: ISO224 Other Parts Discussed in Thread: , ADS8686S I use ISO224 and ADS8686 to do the design, in THE ISO224EVM circuit, ISO224 after the operational amplifier to do 3 times amplification, but I do not need 3 times amplification, I hope ISO224…
Hi Erik,
some high frequency noise at the output of ISO224 is entirely normal. That's why figure 48 of datasheet recommends low pass filtering at the output of ISO224. Also the ISO224EVM contains a low pass filter:
Kai
Hi Alice,
Can you please describe what you mean by "sensor stops working?"
Are you receiving inaccurate output waveforms, is the device failing, or is there a code issue?
Are you applying 240V to this board?
In terms of layout, there are a few…
Hi Manjunath,
So here are a few observations after spending a little more time with your schematic. The ISO224 needs 5V power on both sides to the chip, your 3.3V rail on VDD2 has to be at least 4.5V (datasheet section 7.3). With a single supply opamp…
Hi Rajesh -
This looks like the normal operating condition of the ISO224 to me. The ISO224 outputs are centered on 2.5V, this is shown in the datasheet. One note though, you can't just tie the (-) output terminal to ground. You would be better off…
Hi Dharmik,
Welcome to our e2e forum! Take a look at the ISO224, it's a little easier to deal with than the ISO124 (simpler power schema, has an internal attenuation stage). To scale the output for a 0-3V internal ADC on a micro, you could use a differential…
Part Number: TLV6001 Other Parts Discussed in Thread: ISO224EVM , , TMS320F28377D Tool/software: WEBENCH® Design Tools hello,
I have one question regarding to ADC acquisition window. In order to achieve rated resolution, the signal source needs to charge…