TLC7524: TLC7524

user5940158

Part Number: TLC7524

i am using TLC7524CPW on my design, can i get the minimum resistance between OUT1 and REF for any combination of digital inputs?
In our circuit there is one instance where we pull REF to ground. I wanted to collect the minimum resistance value for any possible combination to determine if this will cause a short.

Also we are migrating from DAC0832LCWM/NOPB to TLC7524CPW. If you have any comparison that was earlier done, that would be really appreciated.

over 4 years ago

0 Akhilesh K over 4 years ago

TI__Mastermind 18966 points

Hi,

Since TLC7524 is an MDAC, reference input impedance will always be constant , and it will be min 5 Kilo ohms. Also output impedance will be function of digital code. So if you are looking at resistance between OUT and Ref, it cannot be less than 5K for any digital code.

Since you asked this question, to better understand this, please go through the tech note in the below link, it will be really helpful.

https://www.ti.com/lit/an/sbaa146a/sbaa146a.pdf?ts=1592293943189&ref_url=https%253A%252F%252Fwww.google.com%252F

I don't have any comparison done with DAC0832 at this point of time.

Regards,

Because of the Thanksgiving holiday in the U.S., TI E2E™ design support forum responses may be delayed from November 25 through December 2. Thank you for your patience.

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TLC7524: TLC7524