SN75185DW datasheet(11/21 Pages) TI

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TYPICAL CHARACTERISTICS

INPUT THRESHOLD VOLTAGE

FREE-AIR TEMPERATURE

TA − Free-Air Temperature − °C

VT−

VT+

2.4

2.2

1.8

1.6

1.4

1.2

0.8

0.6

0.4

2030

5060

INPUT THRESHOLD VOLTAGE

SUPPLY VOLTAGE

VCC − Supply Voltage − V

VT−

VT+

1.8

1.6

1.4

1.2

0.8

0.6

0.4

345

0.2

MAXIMUM SUPPLY VOLTAGE

FREE-AIR TEMPERATURE

TA − Free-Air Temperature − °C

RL ≥ 3 kΩ

(from each output to GND)

2030

4050

NOISE REJECTION

CC = 300 pF

VCC = 5 V

TA = 25°C

See Note A

tw − Pulse Duration − ns

CC = 500 pF

CC = 12 pF

CC = 100 pF

NOTE A: This figure shows the maximum amplitude of a positive-going

pulse that, starting from 0 V, will not cause a change in the

output level.

100

400

1000

4000 10000

SN75185

MULTIPLE RS-232 DRIVERS AND RECEIVERS

SLLS181D–DECEMBER 1994–REVISED JANUARY 2006

ABC

RECEIVER SECTION

Figure 11.

Figure 12.

Figure 13.

Figure 14.

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