8

Figure 9. Propagation Delay vs.

Pulse Input Current.

Figure 10. Pulse Width Distortion

vs. Temperature.

Figure 11. Rise and Fall Time vs.

Temperature.

Figure 14. Recommended TTL/LSTTL to TTL/LSTTL Interface Circuit.

300

290

-60

-20

20

60

100

T – TEMPERATURE –

°C

A

60

80

40

0

-40

0

40

R = 1 K

Ω

L

V

= 5.0 V

I

= 7.5 mA

F

CC

R = 4 K

Ω

L

R = 350

Ω

L

R = 350

Ω, 1 KΩ, 4 KΩ

L

20

V

= 5.0 V

I

= 7.5 mA

F

CC

40

30

-20

20

60

100

T – TEMPERATURE –

°C

A

20

80

40

0

-40

10

R

= 350

Ω

L

R

= 1 k

Ω

L

R

= 4 k

Ω

L

0

-60

V

= 5.0 V

T

= 25

°C

CC

A

105

90

59

13

I – PULSE INPUT CURRENT – mA

F

75

15

11

7

30

60

45

t

, R = 4 K

Ω

PLH

L

t

, R = 1 K

Ω

PLH

L

t

, R = 350

Ω

PHL

L

1 K

Ω

4 K

Ω

t

, R = 350

Ω

PLH

L

*DIODE D1 (1N916 OR EQUIVALENT) IS NOT REQUIRED FOR UNITS WITH OPEN COLLECTOR OUTPUT.

5 V

GND 1

470

*D1

SHIELD

CHANNEL 1 SHOWN

8

7

5

390

Ω

0.1

µF

BYPASS

1

1

2

+

–

5 V

GND 2

2

Figure 12. Test Circuit for Common Mode

Transient Immunity and Typical Waveforms.

Figure 13. Temperature Coefficient of

Forward Voltage vs. Input Current.

0.1

1

10

100

I – PULSE INPUT CURRENT – mA

F

-1.4

-2.2

-2.0

-1.8

-1.6

-1.2

-2.4

V

O

0.5 V

O

V

(min.)

5 V

0 V

SWITCH AT A: I = 0 mA

F

SWITCH AT B: I = 7.5 mA

F

CM

V

H

CM

O

V

(max.)

CM

V

(PEAK)

+5 V

0.1

µF

BYPASS

OUTPUT V

MONITORING

NODE

O

PULSE GEN.

Z

= 50

Ω

O

CM

V

+

_

A

350

Ω

1

2

3

4

5

6

8

CC

V

GND

B