FOD070L Datasheet, PDF (8/17 Pages) Fairchild Semiconductor – LVTTL/LVCMOS COMPATIBLE LOW INPUT CURRENT HIGH GAIN SPLIT DARLINGTON OPTOCOUPLERS

SINGLE CHANNEL:
DUAL CHANNEL:
LVTTL/LVCMOS COMPATIBLE LOW INPUT
CURRENT HIGH GAIN SPLIT DARLINGTON
OPTOCOUPLERS
FOD070L
FOD073L
FOD270L
Pulse
Generator
I_F
tr = 5ns
Z _O = 50 V
Noise
Shield
1
2
V_F
3
I _F Monitor
R_m
4
8 ^VCC
+3.3 V
7 ^VB
R_L
6 ^VO
0.1 µF
5
GND
V_O
CL = 15 pF*
Pulse
Generator
tr = 5ns
Z _O = 50 V
IF +
1
VF1
-₂
Noise
Shield
IF
MONITOR
Rm
-₃
VF2
+₄
VCC
8
RL
V01
7
V02
6
GND
5
0.1 µF
+3.3 V
V_O
C = 15 pF*
Test Circuit for FOD070L, FOD270L
I_F
Test Circuit for FOD073L
*Includes Probe and Fixture Capacitance
V_O
T_PHL
50%
3.3 V
50%
V_OL
T_PLH
Fig. 17 Switching Time Test Circuit
© 2004 Fairchild Semiconductor Corporation
Page 8 of 17
8/10/04