FOD050L_09 Datasheet, PDF (1/13 Pages) Fairchild Semiconductor – FOD050L, FOD250L: Single Channel FOD053L: Dual Channel LVTTL/LVCMOS 3.3V High Speed Transistor Optocouplers

July 2009
FOD050L, FOD250L: Single Channel
FOD053L: Dual Channel
LVTTL/LVCMOS 3.3V High Speed Transistor Optocouplers
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
Description
The FOD250L, FOD050L and FOD053L optocouplers
consist of an AlGaAs LED optically coupled to a high
speed photodetector transistor. These devices are speci-
fied for operation at a 3.3V supply voltage.
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).
Schematics
Package Outlines
N/C 1
+2
8
V
CC
7
V
B
+1
V
F1
_2
8
V
CC
7
V
01
8
1
8
1
V
F
_3
N/C 4
6V
O
5 GND
_3
V
F2
+4
6
V
02
5 ^GND
8
1
Truth Table
8
1
FOD050L, FOD250L
FOD053L
LED
On
Off
V_O
LOW
HIGH
©2003 Fairchild Semiconductor Corporation
FOD050L, FOD250L, FOD053L Rev. 1.0.3
www.fairchildsemi.com