lm1458 and lm358 upgrades

crippledchicken · 25th May 2004, 04:05 PM

hi, i listen to alot of music on sat. and would like to upgrade these two opamps in my satellite receiver. i have some ad8620s on hand could they maybe be used as upgrades for these chips? also will the ad8620s, run fine on single, instead of dual voltages? i guess i might have to add some bypassing at power pins also. thanks crippledchicken

crippledchicken · 27th May 2004, 08:17 PM

well, it's a no go circuit voltages are way to high for ad8620s

maylar · 27th May 2004, 10:09 PM

I've used a whole lot of LM358's in the past.. Good single supply opamp capable of driving high capacitive loads.

Linear Technologies LT1013 is a good upgrade.

crippledchicken · 28th May 2004, 04:30 AM

hey thanks maylar, it seems like the positive 34v single supply is pushing it but, came like that stock. i'll check out the lt1013s i know i put the lt1122s in my adcom preamp, which sounded really good. thanks, crippledchicken

25th May 2004, 04:05 PM	#1
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	lm1458 and lm358 upgrades hi, i listen to alot of music on sat. and would like to upgrade these two opamps in my satellite receiver. i have some ad8620s on hand could they maybe be used as upgrades for these chips? also will the ad8620s, run fine on single, instead of dual voltages? i guess i might have to add some bypassing at power pins also. thanks crippledchicken

27th May 2004, 08:17 PM	#2
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	update well, it's a no go circuit voltages are way to high for ad8620s

27th May 2004, 10:09 PM	#3
maylar diyAudio Member Join Date: Jun 2003 Location: Connecticut	I've used a whole lot of LM358's in the past.. Good single supply opamp capable of driving high capacitive loads. Linear Technologies LT1013 is a good upgrade. __________________ dave

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28th May 2004, 04:30 AM	#4
crippledchicken diyAudio Member Join Date: Dec 2003 Location: south east mo.	hey thanks maylar, it seems like the positive 34v single supply is pushing it but, came like that stock. i'll check out the lt1013s i know i put the lt1122s in my adcom preamp, which sounded really good. thanks, crippledchicken

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