The parts heats up mementarily I power up the part. Could you please give me
the reason - how to prevent this?
You need to have a defined level for A or the Y - Inputs
otherwise the two internal amplifiers would work against each other.
customer measurements - after proposal:
a) please set Enable to GND - does the part heat up? NO Heat .
b) please set a1, A2, A3 A4 to 0V - does the part heat up? NO Heat
c) please set A1, A2, A3, A4 to VccA - does the part heat up? NO Heat .