ADS1118: ADS1118IDGSR

M SANDEEP

Part Number: ADS1118
Other Parts Discussed in Thread: LMR51450

Tool/software:

Hi Sir,

My self i'm Sandeep,

Here i'm using the LMR51450 Switching regulator for 12V to 5VDC conversion, and i'm giving this switching regulator supply to ADS1118IDGSR,

So, Can we use this 5VDC supply to ADC powering with RC snubber and Ferrite Bead combination?

I'm attaching the circuits of both Switching regulator and ADC, Kindly verify these.

over 1 year ago

0 Angel Rodriguez de San Miguel Bermudez over 1 year ago

TI__Expert 8130 points

Hi Sandeep,

I will take a closer look at this and get back to you by next week.

Best Regards,

Angel

0 Angel Rodriguez de San Miguel Bermudez over 1 year ago

TI__Expert 8130 points

Hi Sandeep,

Apologies for the late reply.

I'm not too familiar with this circuit provided, but as long as you provide a stable 5V for your power supply to the ADC it should be okay.

Do you expect this source to be very noisy?

Power-supply rejection specs are provided in the table of section 7.5 Electrical Characteristics of the data sheet.

Make sure that there won't be transient spikes that could create high voltages at the VDD pin as this would damage the device if it exceeds the absolute max power supply ratings given in the data sheet.

Best Regards,

Angel

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ADS1118: ADS1118IDGSR