ZHCSFZ0D December 2016 – December 2023 DAC38RF80 , DAC38RF83 , DAC38RF84 , DAC38RF85 , DAC38RF90 , DAC38RF93
PRODUCTION DATA
There are no power supply sequencing requirements for all the 1-V and 1.8-V power supplies. For the -1.8 V VEE18 rail, it is recommended that this supply is the last to be enabled. Enabling VEE18 (while other supply voltages are disabled) can cause a small negative voltage to be present at the other rails (that is, VDDA1 and VDDDIG1). This small negative voltage can interfere with the startup of some DC-DC converters or LDO's connected to the 1 V and 1.8 V input power rails.