name: OPA643 function: Wideband Low Distortion Op-Amp package: 8-pin CerDIP, PDIP, SOIC,8 manufacturer: Burr-Brown added-by: Vince Sutton +--()--+ NC | 1 8| +Vs2 Inverting Input | 2 7| +Vs1 Non-Inverting Input | 3 6| Output -Vs1 | 4 5| -Vs2 +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/