TI (Texas Instruments) LM2901-N Approx. Price (us$): 0.29 | 1ku Input Bias Current (+/-)(max)(na): 500 Number Of Channels: 4 Output Current(min)(ma): 16 Output Type: Open Drain Pin/package: 14PDIP, 14SOIC Tresp Low - To - High(us): 0.5 Vs(max)(v): 36 Vs(min)(v): 2