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FOD2200
8-PIN DIP LOW INPUT CURRENT LOGIC GATE OPTOCOUPLER
LOW INPUT CURRENT
LOGIC GATE OPTOCOUPLERS
FOD2200
DESCRIPTIONThe FOD2200 is an optically coupled logic gate that combine an AlGaAs LED
and an integrated high gain photo detector. The detector has a three state
output stage and has a detector threshold with hysteresis. The three state
output eliminates the need for a pullup resistor and allows for direct drive of
data busses. The hysteresis provides differential mode noise immunity and
eliminates the potential for output signal chatter.
The Electrical and Switching Characteristics of the FOD2200 are guaranteed
over the temperature range of 0°C to 85°C and a V
range of 4.5 volts to 20
volts. Low I
and wide V
range allow compatibility with TTL, LSTTL, and
CMOS logic and result in lower power consumption compared to other high
speed optocouplers. Logic signals are transmitted with a maximum propaga-
tion delay of 300 nsec. The FOD2200 is useful for isolating high speed logic
interfaces, buffering of input and output lines, and implementing isolated line
receivers in high noise environments.
FEA TURES•1 kV/µs Minimum Common Mode
Rejection Compatible with LSTTL, TTL, and CMOS
Logic Wide V
Range (4.5 to 20 V) 2.5 Mbd Guaranteed over Temperature
•Low Input Current (1.6 mA) Three State Output (No Pullup Resistor
Required) Guaranteed Performance from 0°C to 85°C Hysteresis Safety Approvals Pending – UL, CSA, VDE
ISO
= 5kVRMS
APPLICATION Isolation of High Speed Logic Systems Computer-Peripheral Interfaces Microprocessor System Interfaces Ground Loop Elimination Pulse Transformer Replacement Isolated Buss Driver High Speed Line Receiver
TRUTH TABLE (Positive Logic)
Schematic
