=A0 Hello All I am looking for 4-20mA transmitter, that takes serial inputs like SPI o= r I2c and give output from 4 to 20mA. I have tried using AD420 but one of t= he peripheral transistor was hard to source so i am thinking of switching t= o some other system...any suggestion...? -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist