Place resistors in series with the power pins of the devices and measure the voltage across them. Bob Ammerman RAm Systems ----- Original Message ----- From: "Mike Hord" To: Sent: Wednesday, May 19, 2004 11:54 AM Subject: [PIC:] Finding the current hog... > I have a low power design that I'm trying to get as far down > as possible. It sits at ~980 uA right now, but over 500 uA of > that is a "low power" op amp that I'm shopping for a > replacement for. > > I've already gone through the PIC, minimized its current draw > as much as possible (pins not pulled externally are outputs, > being driven high or low). The remaining ~440 uA still seems > a bit high, since everything on the board is shutdown but the > voltage regulator. The sleep currents for the other > components on the board sum up to less than 200 uA. Can > anyone give me some general troubleshooting advice to find > the hog that's sucking up the other 250 uA? > > Mike H. > > _________________________________________________________________ > MSN Toolbar provides one-click access to Hotmail from any Web page FREE > download! http://toolbar.msn.click-url.com/go/onm00200413ave/direct/01/ > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email listserv@mitvma.mit.edu with SET PICList DIGEST in the body > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body