On Tue, 17 Feb 1998 11:05:07 GMT+2, Werner Terreblanche wrote: > Since there will also be a 5V, 12 bit A/D on > the circuit, I need something that is not very noisy and still quite > efficient. Maxim makes some low voltage 12 bit A/D converters. For instance, the MAX 1241 is a one-channel, 12 bit serial ADC (0.9 mA) that runs on 2.7-5.25 volts, in an 8-pin package. You might have an easier time of multiplying your voltage up to 3 volts instead of 5. Later, Jon -------------------------------------------------------------- Jon Hylands Jon@huv.com http://www.huv.com/jon Project: Micro Seeker (Micro Autonomous Underwater Vehicle) http://www.huv.com