INFICON Spot CDS550D - Manual (Page 5)

Research & Development
SPOT CDS500D & CDS550D OEM Sensor SPI-Interface Specification_V1.1 Page 5 of 14
Christian Berg, T based on Felix Mullis, TL Created 11/10/2014 2:36:00 PM
2.5 Interface Hardware Specifications
2.5.1 Power Supply
Signal Description MIN TYP MAX UNIT
Vcc Supply voltage 4.75 5.0 5.25 VDC
Ripple Supply voltage ripple and noise (BW = 20MHz) 50 mVpk-pk
Icc Supply current 1 5 mA
2.5.2 Recommended operating conditions
The input lines “Clk”, “SS/” and “MOSI” and the output line “MISO” are buffered with a SN74ABT125.
The output line “RDY/” is driven by a SN74AHCT1G125