 This week's IonMPI brought to you by, did you key need a fruit is from Maxim integrator? What is this week's IonMPI Lediator? This week's IonMPI is the Maxim Max 22530, which is a, sorry, it's a analog digital converter to four channel ADC, and it's an isolated ADC that also has like a built in DC-DC converter on chip, as well as five kilovolts isolation voltage. And so it solves a very particular problem, which I've actually seen where you want to measure power or data or signal or whatever or some monitoring in a system that has a lot of noise in it. It has motors or maybe it's floating or maybe it's, you know, the voltage is different than your earth voltage. And in that case, you know, sometimes you'll isolate your entire system. But this allows you just to isolate the analog data acquisition part. So it's actually, it's a wide SOIC, a SOIC-16, and I'll show you actually, because this is, this is like rendering that they've got is like a narrow one. But inside is a four channel ADC. And a lot of people, you know, when you have a microcontroller, you'll use the ADC in the microcontroller. So for example, you've got a, at Mega328 or you got a SAMD-21 or you've got an STM-32. Those have built in ADCs. And often those are, they're fairly good. They're 10-bit ADCs, maybe 12-bit. They can usually run about 100 kilosamples per second. If you are running something like a Raspberry Pi and you need an external ADC, you can use something like this, which is an I squared C, or there's also SPI ADCs that, you know, this one gives you four channels, input, cost a couple bucks. But like I said, these are not isolated. So you'll see at the bottom of this breakout to the left, it says like VDD, ground, and then SEL-SDA, you know, ALERT, whatever, A0, A1, A2, A3, you know, sometimes you'll have an A-Raf, you'll have a reference voltage, but that ground is the ground. Like the ground is a single ground, is the data ground, is the everything ground. There's only one ground line. If you look at the layout for the MAX 22530, you see on the right hand side there's the microcontroller and there's the SPI port where you can see like, you know, clock, data in, data out, and then interrupt, whatever. And then there's the logic circuit, the thing that, you know, the logic interface that actually drives the SPI, and then you see that dashed line in the middle, that's the isolator. So there's an inside, there's a galvanic isolator that connects between the left side, which is the analog input, and the right side, which is the data, the digital signal. And on the left side, you can see, you know, you can measure whatever analog circuit you want and the bottom, you know, you see there's the ground L and the ground, sorry, the ground F. So those are two totally separate grounds, and then also the power supplies are totally separate. And what I really like about this ADC in particular is at the bottom, you can see it says like, micro power DC-DC, that's a DC-DC converter that's built in. It doesn't give you a ton of current, I think it gives you like, sorry, one second, it gives you, you know, three to five volts and it gives you, I think, you know, 10 milliamps or something, it's not like a super powerful, it's like 70 to 10 milliamps. It's not a super powerful DC-DC converter, but it's just enough that you can do like the reference voltage and powering the ADC without having to have that separate supply. So it kind of takes care of a lot of stuff for you. It makes it really easy for you to do isolated ADC measurements. Um, for the isolation, it's got 500, sorry, 5000 volt RMS insulation rating. So, you know, you can definitely use this no matter what like medical or industrial purposes you've got. There's four channels so you can, you know, do four single channel or you can of course do differential if you need. And here's another thing that I thought was really neat. I always like looking at these, I think we covered an industrial DAC a few weeks ago or a few months ago and what I really like is not just like, okay, it's isolated, it's got the DC-DC supply, it's got, you know, separate grounds, it's got, you know, whatever, but the SPI itself has multiple little details in it that make it so that, you know, when you're using it, it's not just SPI data in and signal out, you've got like framing errors. So if you have like a bit flip in your SPI clock or like a glitch or it has CRC data. So when you're reading data, if they're, you know, you're you're sample wrong or something, you'll be able to use that CRC data to let you know that in your noisy situation that your robot or whatever, you're still going to get proper data. There is an eval board available, which I picked up and actually this chip is in stock, which is amazing. And the eval board is kind of nice. It has a FT-2232 USB to serial, sorry, USB to SPI converter. So you plug it in, there's Windows software available that you can use to you know, read the data and set the registers and like Maxim does a very nice job where they kind of have everything available for you. So if you, you know, what I like about this is it's not like the fanciest sensor, it's not the, you know, the whatever a new mic controller with like Wi-Fi, but it does do one thing that does it really, really well. If you're doing an ADC and you need to, you know, measure a motor or an industrial situation or, you know, whatever, something where your your power supplies can't touch. You don't want to have a signal coming in, you know, from your loud, messy robot into your microcontroller. You can just use this and like it doesn't take any extra effort. You don't have to set up a separate, you know, isolated power supply. It kind of does it all and a good price too. And here's the best part. It's in stock. So it is. I have to pick my eye on MPIs in a way that you can get it. I will say, just so you know, the photo of this is incorrect. It's an SOIC chip, but it is in stock. Available Digikey. And there's a couple other versions that are available too. Like this, I think is the first one, the 22530. There's also the 22531 and the 22532. And those are, oh, hi, those are very similar. Thank you for, we had an exciting camera situation, but now we have a fixed camera. This is the, this is the chip. This is what it looks like. You can see it's kind of a thick. You'll notice that a lot of isolated chips use wide SOICs. And then there's a QR code you can use to download. Live while we were on video, the overhead that we use decided to die, right? I held it in my arms and it died. But that's okay. Nothing's going to stop us. Yeah, you could see it's just like no signal. But you can't stop the signal here. You can't stop IMPI. So while Lady Aida was showing this, I have another thing that I plugged in and it didn't destroy everything. So that is this week's IonMPI. Pick these up. You're just showing URL and nothing's going to stop us from doing IonMPI every week. So let me get us out of this and I'll show what happened. Okay. IonMPI.