FOD050L Datasheet, PDF (1/13 Pages) Fairchild Semiconductor – HIGH SPEED TRANSISTOR OPTOCOUPLERS

SINGLE-CHANNEL: FOD050L
DUAL-CHANNEL: FOD053L
PACKAGE
LVTTL/LVCMOS 3.3V
HIGH SPEED TRANSISTOR
OPTOCOUPLERS
FOD250L
SCHEMATIC
8
1
8
1
8
1
N/C 1
+2
V
F
_3
N/C 4
8
V
CC
7
V
B
6V
O
5 GND
+1
V
F1
_2
_3
V
F2
+4
8
V
CC
7
V
01
6
V
02
5 ^GND
FOD050L, FOD250L
FOD053L
DESCRIPTION
The FOD250L, FOD050L and FOD053L optocouplers consist of an AlGaAs LED optically coupled to a high
speed photodetector transistor. These devices are specified for operation at a 3.3V supply voltage.
Truth Table
LED
On
Off
V_O
LOW
HIGH
A separate connection for the bias of the photodiode improves the speed by several orders of magnitude over conventional
phototransistor optocouplers by reducing the base-collector capacitance of the input transistor.
An internal noise shield provides superior common mode rejection of CM_H = 50kV/ms (typical) and CM_L - 35kV/ms (typical).
FEATURES
• Low power consumption
• High speed
• Available in single channel 8-pin DIP (FOD250L), 8-pin SOIC (FOD050L) or dual channel 8-pin SOIC (FOD053L)
• Superior CMR – CM_H = 50kV/µs (typical) and CM_L - 35kV/µs (typical)
• Guaranteed performance over temperature: 0°C to 70°C
• U.L. recognized (File # E90700)
• VDE pending
APPLICATIONS
• Line receivers
• Pulse transformer replacement
• High speed logic ground isolation: LVTTL/LVCMOS
• Wide bandwidth analog coupling
© 2004 Fairchild Semiconductor Corporation
Page 1 of 13
6/14/04