A monolithic analog compandor

A gain control IC for analog compandors, which follows the 2:1 compandor law where a 2-dB input level change is COM Pressed into a 1-dB change for transmission, and a complementary expANDOR restores the 2-dB change at the receiving end, will be described. Ion implanted resistors are used to achieve low temperature sensitivity, low power dissipation and reduced chip size.