At 03:37 PM 2/21/03 +1100, Ian McLean wrote: >PS: Must get my hands on some better op-amps ? Any suggestions as to a >suitable one for this job ? I posted a list of readily available dual op-amps a couple of weeks back. My requirements for that project required a reasonably low offset voltage so that is what my list focused upon. However, I also listed the supply voltage operating range and maximum Vout swing: the parts marked "RR" have rail-to-rail output stages. Finally, the list included cost (Canadian $). Ah - what the heck. Here is a copy of the list again: Low cost single supply dual op-amps Prices in Can $ @ 100 pieces All parts include 0V in the input common mode range AD = Analog Devices, LT = Linear Technology, TI = Texas Instruments, NS = National Semiconductor, MCP = Microchip Part Manufct VIOS V0hi Supply Price # (mV) (min) range C$ @100 AD8552 AD 0.003 R-R 2.7 - 5 4.39 LT1013 TI 0.3 Vcc-1 5..40 0.88 LT1013D TI 0.8 Vcc-1 5..40 0.89 TLE2022 TI 0.15 Vcc-1 4..40 1.05 TLC2272 TI 0.95 R-R 4.4 - 16 0.99 LMC6082 NS 0.35 R-R 4.5 - 15.5 2.15 LMC6462 NS 0.50 R-R 3 - 15.5 2.13 LMC6482 NS 0.75 R-R 3 - 15.5 0.88 LMV712 NS 0.40 R-R 2.7 - 5 1.22 @ 1000 MOQ MCP607 MCP 0.25 R-R 2.5 - 5.5 1.17 MCP617 MCP 0.15 R-R 2.3 - 5.5 1.26 MCP6022 MCP 0.50 R-R 2.5 - 5.5 1.59 Hope this helps dwayne -- Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax Celebrating 19 years of Engineering Innovation (1984 - 2003) .-. .-. .-. .-. .-. .-. .-. .-. .-. .- `-' `-' `-' `-' `-' `-' `-' `-' `-' Do NOT send unsolicited commercial email to this email address. This message neither grants consent to receive unsolicited commercial email nor is intended to solicit commercial email. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads