TAS3251: Power supply current DAC_AVDD and DAC_DVDD

Andrej Levstek

Prodigy 10 points

Part Number: TAS3251
Other Parts Discussed in Thread: TPS7A88

Does anybody have an idea about the maximum supply current at DAC_AVDD and DAC_DVDD?

I have carefully checked the data sheet (SLASEG6B9), but I couldn't find this data.

I have found out from the TAS3252 EVM board manual that the 3.3V for the low voltage circuitry and DAC

should be well stabilized and free of noise, but there are no numbers about the actual current requirement.

Greetings

Andrej Levstek

over 2 years ago

0 Luis Fernandes de Pina over 2 years ago

TI__Genius 15080 points

Hello Andrej,

Depending on the sampling rate this will change but at the absolute max for DAC_AVDD is 32mA (typical 24mA), and DAC_DVDD is 15mA (typical is 13mA).

best regards,
Luis

0 Andrej Levstek over 2 years ago in reply to Luis Fernandes de Pina

Prodigy 10 points

Thanks for your quick response. I intend to use a low noise power supply for 100mA, but I want to be sure if this is enough. The EVM board design is using TPS7A88 that offers up to 1A.

Regards

Andrej

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TAS3251: Power supply current DAC_AVDD and DAC_DVDD