Can't you use a standard opamp for it? If the gain for a single opamp is too low, chain them together for a higher gain. John --- John Pearson wrote: > I need to amplify the signal from a sensor into an > ADC. I have very little analog experience or > knowledge. > > Circuit supply voltage is +3.3 volts. > Output impedance of transducer is 1K typical. > Full output voltage span of sensor is 35mV typical. > Nominal input impedance of ADC is 10K. > > I want to amplify the DC voltage from the sensor to > the ADC as much as possible. Linearity, temp drift > and offset is not too much of an issue. > > Can this be done with perhaps a mosfet and a couple > resistors? Is there a small package (like a TO92 or > 3 pin package) that will do the trick? > > Thanks > > John > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist