Hi, Another small one: the HMC1022 and HMC1021 have a 0.39V ref analog output. On the 3300 eval board, they use a fairly expensive CS5523-AS 16 bit A/D converter. Is there a budget friendlier type of A/D converter to get that 0.39V signal into the PIC, maybe a 0.39V fixed A/D if such a device exist? The 10 bit A/D of the PIC itself could possibly be sufficient, only if the noise doesn't render the lowest bits useless. This, however, is unsure, so a 12 or 14 bit A/D would be preferrable. Thanx, Claudio -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads