SP231ADS/01

SP231A Enhanced RS-232 Line Drivers/Receivers

© Copyright 2000 Sipex Corporation

7

10

9

R IN

R OUT

2

13

14

R IN

R OUT

1

11

8

T IN

2

T OUT

2

12

15

T IN

1

T OUT

1

16

GND

400k

Ω

400k

Ω

4

2

C +

C -

1

1

7

17

V

CC

V+

+

+

0.1 F

6.3V

µ

+5V to +10V

Voltage Doubler

+5V INPUT

3

V-

2

1

5k

Ω

5k

Ω

6

5

C +

C -

2

2

+

0.1 F

16V

µ

+10V to -10V

Voltage Inverter

10 F 6.3V

µ

SP310A

+

18

ON/OFF

+

0.1 µF

16V

*

*The negative terminal of the V+ storage capacitor can be tied

is recommended.

0.1 µF

16V

10

9

R IN

R OUT

2

13

14

R IN

R OUT

1

11

8

T IN

2

T OUT

2

12

15

T IN

1

T OUT

1

16

GND

400k

Ω

400k

Ω

4

2

C +

C -

1

1

7

17

V

CC

V+

+

+

0.1 F

6.3V

µ

+5V to +10V

Voltage Doubler

+5V INPUT

3

V-

2

1

5k

Ω

0.1 F

16V

µ

5k

Ω

6

5

C +

C -

2

2

+

0.1 F

16V

µ

+10V to -10V

Voltage Inverter

10 F 6.3V

µ

SP312A

+

18

SHUTDOWN

1

EN

+

0.1 F

16V

µ

*

*The negative terminal of the V+ storage capacitor can be tied

is recommended.

Figure 5. Typical Circuits using the SP310A and SP312A