7/8-Bit Single, +36V (±18V) Digital POT
with SPI Serial Interface and Volatile Memory
Description
The MCP41HVX1 family of devices have dual power
rails (analog and digital). The analog power rail allows
high voltage on the resistor network terminal pins. The
analog voltage range is determined by the V+ and Vvoltages. The maximum analog voltage is +36V, while
the operating analog output minimum specifications are
specified from either 10V or 20V. As the analog supply
voltage becomes smaller, the analog switch resistances
increase, which affects certain performance specifications. The system can be implemented as dual rail
(±18V) relative to the digital logic ground (DGND).
The device also has a Write Latch (WLAT) function,
which will inhibit the volatile wiper register from being
updated (latched) with the received data until the WLAT
pin is low. This allows the application to specify a
condition where the volatile wiper register is updated
(such as zero crossing).
