Do anyone know about the ic ZN448E(ADC) & ZN428E(DAC)? I cant find this components in my country(Malaysia). So, is there any ic tat can replace both of them? For example the "RXT" pin in ZN448E and "Enable" pin in ZN428E. I have search for many ic but none of them consists the pins. Hope some experinces guys can help me. Thank you!