name: ADS1211 function: 24-bit Analog to Digital Converter package: 24-lead plastic DIP or SOIC,24 manufacturer: Burr-Brown added-by: Vince Sutton +--()--+ Ain3N | 1 24| Ain3P Ain2P | 2 23| Ain4N Ain2N | 3 22| Ain4P Ain1P | 4 21| REFin Ain1N | 5 20| REFout AGND | 6 19| AVdd Vbias | 7 18| MODE /CS | 8 17| /DRDY /DSYNC | 9 16| SDOUT Xin |10 15| SDIO Xout |11 14| SCLK DGND |12 13| DVdd +------+ This information was added by a third party and may be incorrect. This pinout came from the Chipdir: http://www.chipdir.org/