Anyone can identify this BurrBrown opamp ?

rbroer · 11th July 2002, 09:38 PM

The supply voltages I measured are:
pin 7: +40V
pin 4: -40V

Quite high indeed !
Search the TI site,
but OPA2604 has highest voltage ratings of +/-24Vdc, nowhere near.

I assume it's a single opamp...
Anybody ???

Regards, Rudolf.

Elso Kwak · 11th July 2002, 09:58 PM

Hi Rudolf,
Could be OPA 445; can handle +/- 45V supplies.

High voltage FET-Input Operational Amplifier.

rbroer · 11th July 2002, 10:43 PM

I did some further searching and found high voltage opamps.
I just downloaded the datasheet for OPA445, prior to reading your reply.

It's the driver stage in an integrated amplifier.
The preamp opamps are "mutilated" as well, but since they are also BB and have supplies of +/-22V on pins 8 and 4, good chance they are OPA2604's.

Stills thanks Elso.

11th July 2002, 09:58 PM	#2
Elso Kwak Banned Join Date: Dec 2001 Location: Zamboanga, City of Flowers, Mindanao	Unknown Opamp? Hi Rudolf, Could be OPA 445; can handle +/- 45V supplies. High voltage FET-Input Operational Amplifier.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
LF/WTB: BurrBrown DIR1701	fred76	Swap Meet	1	11th February 2005 10:10 AM
F/s Burrbrown Opa627ap	sma	Swap Meet	0	12th October 2004 10:42 AM
BurrBrown OPA627	XTAL	Digital Source	2	21st August 2004 07:49 PM
Anyone can identify this BurrBrown opamp	rbroer	Parts	3	12th July 2002 07:32 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

11th July 2002, 10:43 PM	#3
rbroer diyAudio Member Join Date: Mar 2002 Location: Netherlands	I did some further searching and found high voltage opamps. I just downloaded the datasheet for OPA445, prior to reading your reply. It's the driver stage in an integrated amplifier. The preamp opamps are "mutilated" as well, but since they are also BB and have supplies of +/-22V on pins 8 and 4, good chance they are OPA2604's. Stills thanks Elso.