Apex 2nd Source Reference

Reliable Choices in Power Amplifiers

For more than two decades, Apex Microtechnology has been an industry leader in providing power product solutions. Today, Apex has more than 100 models of monolithic and hybrid linear power amplifiers. Through a combination of exceptional product performance, manufacturing integrity and long product life cycles, Apex has helped customers manage component obsolescence. Below is a cross reference listing for those industry models for which Apex can be used as a replacement or a second source. The list indicates the specific form and function each model can match: pin for pin replacement (P/F), pin for pin but with major performance differences (P/D) and a functional equivalent (F/E).

Alternative	Apex Part	Fit Notes
Texas Instruments, Burr-Brown
3571/3572	PA01	P/D
	PA07	P/D
	PA10	P/D
	PA12	P/D
	PA61	P/D
3573	PA73	P/F
3573AM	PA83	P/F
3573AMQ	PA73	P/F
3581/3582/3583	PA83	P/F
3581J	PA81J	P/F
3582J	PA82J	P/F
3583J	PA83	P/F
3584/3584J	PA84	P/D
OPA2541	PA76	P/F
OPA2544	PA60	P/D
OPA501	PA51	P/F
	PA61	P/D
OPA502BM	PA12	P/D
OPA502SM	PA12A	P/D
OPA511AM	PA01	P/D
	PA10	P/D
OPA512	PA12	P/F
	PA10	P/D
OPA512SM	PA12A	P/F
OPA541	PA02	F/E
	PA10	P/D
	PA07	P/D
	PA12	P/D
	PA51	P/D
	PA61	P/D
OPA548	PA01	F/E
	PA73	F/E

• (P/F) = Pin for pin compatible - form, fit and functional replacement
• (P/D) = Pin for pin compatible - major performance differences noted
• (F/E) = Functional equivalent - not pin for pin compatible - major differences noted

Contact Apex Technical Support

Need help with a specific circuit design question? You can tap into a wealth of power analog circuit design expertise by contacting the Apex Applications Engineering Team. Request assistance with product selection, design suggestions, schematic review, and circuit debugging.