74OL6000

Maximum Forward Diode Voltage :
Maximum Reverse Diode Voltage :
Maximum Input Diode Current :
Maximum Power Dissipation :
Maximum Operating Temperature :
Minimum Operating Temperature :
Package / Case :
Current Transfer Ratio :
Packaging : Bulk
Maximum Baud Rate : 15 MBps


Features:

• Industry first LSTTL to TTL and LSTTL to CMOS complete logic-to-logic optocoupler
• Incorporates LED drive circuitry - use as logic gate
• Very high speed
• Choice of buffer or inverter
• Choice of TTL or CMOS compatible output up to 15 volts
• Fan-out of 10 TTL loads, fan-in 1 LSTTL load
• Internal noise shield - very high CMR of ±15 kV/µS
• UL recognized (File #E90700)
• Same noise immunity as LSTTL/TTL.





Application

• Transmission line interface - receiver and driver
• Excellent as bridged receiver in fast LAN highways
• Bus interface
• Logic family interface with ground loop noise elimination
• High speed AC/DC voltage sensing
• Driver for power semiconductor devices
• Level shifting
• Replaces fast pulse transformers




Pinout






Specifications

ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified)
Parameter	Symbol	Device	Value	Units
TOTAL DEVICE Storage Temperature	TSTG	All	-55 to +125	°C
Operating Temperature	TOPR	All	0 to +70	°C
Lead Solder Temperature	TSOL	All	260 for 10 sec	°C
Power Dissipation	PD	All	350	mW
EMITTER Input Supply Voltage	VCCI	All	7	V
Input Voltage	VIN	All	7	V
DETECTOR Average Output Current	IO (avg)	All	40	mA
Output Supply Voltage	VCCO	74OL6010/01	7	V
		74OL6010/11	18
Output Voltage	VO	74OL6000/01	7	V
		74OL6010/11	18

Description

OPTOLOGIC™ of the 74OL6000 is the first family of truly logic compatible optically coupled logic interface gates.

The family of the 74OL6000 consists of four device types offering LSTTL to TTL and LSTTL to CMOS interfacing. Each of these interfacing functions is available as a buffer (A=B), or as an inverter (A=B).

The LSTTL input compatibility of the 74OL6000 is provided by an input integrated circuit, with industry standard logic levels. This input amplifier IC switches a temperature compensated current source driving a high speed 850 nm AlGaAs LED emitter. This novel integration scheme eliminates CTR degradation over time and temperature.

The emitter of the 74OL6000 is optically coupled to an integrated photodetector/high-gain, high-speed output amplifier IC. The superior 15kV/µS common-mode noise rejection is ensured through the use of an optically transparent noise shield.

The TTL compatible output has a totem-pole with a fan-out of 10. The CMOS compatible output has an open collector Schottkyclamped transistor that interfaces to any CMOS logic between 4.5 and 15 volts. The 74OL6010/11 may also by used to drive power MOSFETS or transistors up to 15 volts.

The Optologic coupler family typically of the 74OL6000 offers propagation of delays of 60 ns and can support 15 MBaud data communication.

The two input chips and the output chip are assembled in a 6-pin DIP high insulation voltage plastic package. It provides a withstand test voltage of 5300 VRMS (1 minute).

The 74OL6000 is designed for(1)transmission line interface - receiver and driver; (2)excellent as bridged receiver in fast LAN highways; (3)bus interface; (4)logic family interface with ground loop noise elimination; (5)high speed AC/DC voltage sensing; (6)driver for power semiconductor devices; (7)level shifting; (8)replaces fast pulse transformers.The emitter is optically coupled to an integrated photodetector/high-gain, high-speed output amplifier IC. The superior 15kV/S common-mode noise rejection is ensured through the use of an optically transparent noise shield.

Features of the 74OL6000 are:(1)industry first LSTTL to TTL and LSTTL to CMOS complete logic-to-logic optocoupler; (2)incorporates LED drive circuitry - use as logic gate; (3)very high speed; (4)choice of buffer or inverter; (5)choice of TTL or CMOS compatible output up to 15 volts; (6)fan-out of 10 TTL loads, fan-in 1 LSTTL load; (7)internal noise shield - very high CMR of ±15 kV/S; (8)UL recognized (File #E90700); (9)same noise immunity as LSTTL/TTL.The LSTTL input compatibility is provided by an input integrated circuit, with industry standard logic levels. This input amplifier IC switches a temperature compensated current source driving a high speed 850 nm AlGaAs LED emitter. This novel integration scheme eliminates CTR degradation over time and temperature.

The absolute maximum ratings of the 74OL6000 can be summarized as:(1)lead solder temperature:260;(2)storage temperature:-55 to 125;(3)operating temperature:0 to 70;(4)power dissipation:350mW;(5)input supply voltage:7V;(6)input voltage:7V.The Optologic input amplifier offers the feature of very high input impedance that permits their use as bridged line receivers.The system show above illustrates an optically isolated transmitter and multidrop receiver system. The network uses a 74OL6000 and buffer (Figure D) to isolate the transmitter and drive the 75 coax cable. This application uses a 1000 ft. aerial suspension 75 CATV coax cable with data taps at 250 ft. intervals. The 74OL6001s function as bridged receivers, and as many as 30 receivers could be placed along the line with minimal signal degradation. The communication cable is terminated with a single 75 load at the far end of the line.