FOD2742B

The FOD2742 Optically Isolated Amplifier consists of the popular KA431 precision programmable shunt reference and an optocoupler. The optocoupler is a gallium arsenide (GaAs) light emitting diode optically coupled to a silicon phototransistor. It comes in 3 grades of reference voltage tolerance = 2%, 1%, and 0.5%. The Current Transfer Ratio (CTR) ranges from 100% to 200%. It also has an outstanding temperature coefficient of 50 ppm/°C. It is primarily intended for use as the error amplifier/reference voltage/optocoupler function in isolated ac to dc power supplies and dc/dc converters. When using the FOD2742, power supply designers can reduce the component count and save space in tightly packaged designs. The tight tolerance reference eliminates the need for adjustments in many applications. The device comes in a 8-pin small outline package.

• Fairchild 1,000 piece Budgetary Pricing. *
• If there is no sample button displayed at the top of the page, please contact one of the Fairchild distributors or your local sales office to obtain samples.
• Top mark packaging information for product FOD2742B is available. **

Product	Product Status	Eco Status	*Pricing	Package Type	Leads	Packing Method	Package Drawing	**Package Marking Convention	RoHS IPC1752	RoHS/REACH/JIG Certificate of Compliance
FOD2742B	Full Production	ROHS Compliant	$0.63	SOIC	8	BOX		Line 1:UNK
FOD2742BR2	Full Production	ROHS Compliant	$0.65	SOIC	8	TAPE REEL		Line 1:UNK
FOD2742BR2V	Full Production	ROHS Compliant	$0.65	SOIC	8	TAPE REEL		Line 1:UNK
FOD2742BV	Full Production	ROHS Compliant	$0.63	SOIC	8	BOX		Line 1:UNK