Product Summary

The FOD2741B is an optically isolated error amplifier. The FOD2741B 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. The FOD2741B comes in 3 grades of reference voltage tolerance = 2%, 1%, and 0.5%.

Parametrics

FOD2741B absolute maximum ratings: (1)Storage Temperature TSTG: -55℃ to +125℃; (2)Operating Temperature TOPR: -25℃ to +85℃; (3)Lead Solder Temperature TSOL: 260℃ for 10 sec.; (4)Input Voltage VLED: 37 V; (5)Input DC Current ILED: 20 mA; (6)Collector-Emitter Voltage VCEO: 30 V; (7)Emitter-Collector Voltage VECO: 7 V; (8)Collector Current IC: 50 mA.

Features

FOD2741B features: (1)Optocoupler, precision reference and error amplifier in single package; (2)2.5V reference; (3)CTR 100% to 200%; (4)5,000V RMS isolation; (5)Low temperature coefficient 50 ppm/℃ max; (6)tolerance 1%.

Diagrams

FOD2741B block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
FOD2741B
FOD2741B

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.65
1-25: $0.58
25-100: $0.47
100-250: $0.40
FOD2741B_Q
FOD2741B_Q

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.23
1-100: $0.22
100-500: $0.21
500-1000: $0.20
FOD2741BS
FOD2741BS

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.43
1-25: $0.39
25-100: $0.38
100-250: $0.34
FOD2741BS_Q
FOD2741BS_Q

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.23
1-100: $0.22
100-500: $0.21
500-1000: $0.20
FOD2741BSD
FOD2741BSD

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.80
1-25: $0.62
25-100: $0.57
100-250: $0.49
FOD2741BSD_Q
FOD2741BSD_Q

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

Negotiable 
FOD2741BSV
FOD2741BSV

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.64
1-25: $0.59
25-100: $0.53
100-250: $0.45
FOD2741BSDV
FOD2741BSDV

Fairchild Semiconductor

Transistor Output Optocouplers Error amplifier Optocoupler

Data Sheet

0-1: $0.89
1-25: $0.79
25-100: $0.64
100-250: $0.55