Q
In my prototype, ADG442 is not The problem seems to be that the digital inputsare driven with +15V and -15V logic levels, but the ADG442s are clamping the
low logic level to about -1V. The data sheet (rev. A, 2005) gives the maximum
…
Hi, since this is my first post on analog devices forum, I would like to introduce myself.
My name is Robert and i work at Michigan state university.
I am designing integrating type of light detector so i decided to use bilateral switch to reset integrating…
Hi,
I checked the bonding diagrams and I can confirm that pin 12 of the ADG441 and ADG442 are not internally connected.
You should be okay to put +5 V to this pin.
Yours sincerely,
Igor Ono
Hi Jo,
I'm glad that you have found the ADG442 to better cater your quad input aplication.
To verify your observations, I did try to check the model and had a quick simulation. I can confirm you are correct and thank you for bringing this to our attention…
Thanks Derrick this error is similar to what I am measuring both in the evaluation board and in our board.
Still I would like to know the configurations and formulas for the rest of interfaces if possible.
I have another question. Is it possible to…
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Hi Divya,
For quick reference, here is a link to the circuit note: http://www.analog.com/cn0209
In CN0209, the purpose of ADG442 is to allow for high precision thermocouple measurements.
Hi,
Thanks. We are trying to design an analog input module and we are planning to follow the CN-0209 design.I was asking whether I could replace the switches used in CN-0209(ADG1414,ADG442) and ADC AD7193 with a single ADC .
Thanks and regards,
Divya…
Hi Ching.
First of all, the initial requeriments of my project:
- 8 universal analog inputs (RTD, TC, 4-20, Voltage). 3 header pins.
- Each channel can be configurated independently for RTD, TC ... measurement mode. Another choice if this option…