PGA900

Cyril Baby

I'd like to know the current draw of the chip in the conditions of table 4 - application note SLDA034 "System Noise Analysis...."

Thank you

over 10 years ago

0 Javier Valle over 10 years ago

TI__Expert 4420 points

Hi Cyril, all the data for this app note was taken at room temperature so the chip current was about 2.15 mA or so.

Thanks,

0 Cyril Baby over 10 years ago in reply to Javier Valle

Prodigy 40 points

I noticed there are two rates at which the ADC runs. 7.813k, which seems to be the default rate in Table 4. That will explain your statement that the chip current is the same across the board as ADC rate is left unchanged despite output data rates changes. There is also a 15.6kSPS rate (2nd sentence of paragraph 3 from the same application note). What would be the noise using this rate and what would be the current draw ? Thank you.