ADC3444: DC-Coupled Input Recommendations

Brandon Heavey

Part Number: ADC3444

I'm curious to hear if anyone has used this ADC with a DC-coupled input. If so, did you use a differential amplifier to drive it? Which part? Any passive implementation options?

Thanks.

over 2 years ago

0 Chase W over 2 years ago

TI__Mastermind 18145 points

Hi Brandon,

Our LVDS EVMs often include a DC coupled option using our THS4541 fully differential amplifier. Although this part is not present on the ADC34xxEVM, this will work out just fine. Please see the attached schematic(s) of a couple EVMs which include this device. I am unaware of any passive DC coupled input options as the passive frontends are inherently AC coupled due to balun(s).

Regards, Chase

6567.ADC32XXEVM-SCH_C.pdf ADC3660EVM_REVE_Sch.PDF

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ADC3444: DC-Coupled Input Recommendations