Power Supplies - Texas Instruments ADS8332EVMV2-PDK User Manual

Power Supplies

4 Power Supplies
The ADS8332 ADC analog supply (AVDD) is provided by a low-noise linear regulator (TPS7A4700). The
regulator uses a 5.5-V supply out of a switching regulator from the PHI controller to generate a quiet and stable
5.2-V supply output. The 3.3-V supply to the digital supply of the ADS8332 is provided directly by an LDO
from the PHI controller. The power supply for each active component on the EVM is bypassed with a ceramic
capacitor placed close to that component. Additionally, the EVM layout uses thick traces or large copper filled
areas where possible between bypass capacitors and their loads to minimize inductance along the load current
path.
When using the ADS8332EVMV2 in conjunction with the PHI controller, the PHI controller supplies the AVDD
and DVDD supply. Do not supply external power supply voltages.
8 ADS8332EVMV2-PDK Evaluation Module
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SBAU251B – JULY 2017 – REVISED FEBRUARY 2023
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