ADM223 データシートの表示（PDF） - Analog Devices

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ADM223

5 V-Powered CMOS RS-232 Drivers/Receivers

Analog Devices 

ADM223/ADM230L–ADM241L

T1OUT 1

T2OUT 2

T2IN 3

T1IN 4

GND 5

VCC 6

C1+ 7

V+ 8

ADM234L

TOP VIEW

(Not to Scale)

16 T3OUT

15 T4OUT

14 T4IN

13 T3IN

12 V–

11 C2–

10 C2+

9 C1–

Figure 9. ADM234L DIP/SOIC Pin Configuration

T4OUT 1

24 R3IN

T3OUT 2

23 R3OUT

T1OUT 3

22 T5IN

T2OUT 4

21 SD

R2IN 5

R2OUT 6

T2IN 7

ADM235L

TOP VIEW

(Not to Scale)

20 EN

19 T5OUT

18 R4IN

T1IN 8

17 R4OUT

R1OUT 9

16 T4IN

R1IN 10

15 T3IN

GND 11

14 R5OUT

VCC 12

13 R5IN

Figure 11. ADM235L DIP Pin Configuration

5V INPUT

1␮F

6.3V

1␮F

16V

TTL/CMOS

INPUTS*

T1IN

T2IN

T3IN

T4IN

C1+ +5V TO +10V VCC

VOLTAGE

C1– DOUBLER

V+

C2+ +10V TO –10V

VOLTAGE

V–

C2– INVERTER

T1

T2

T3

T4

GND ADM234L

1␮F

6.3V

1␮F

6.3V

1␮F

16V

T1OUT

T2OUT

RS-232

T3OUT OUTPUTS

T4OUT

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.

Figure 10. ADM234L Typical Operating Circuit

5V INPUT

1␮F

T1IN

TTL/CMOS

INPUTS*

T2IN

T3IN

T4IN

T5IN

R1OUT

R2OUT

TTL/CMOS

OUTPUTS R3OUT

R4OUT

R5OUT

EN

VCC

T1

T2

T3

T4

T5

R1

R2

R3

R4

R5

GND ADM235L

T1OUT

T2OUT

T3OUT

RS-232

OUTPUTS

T4OUT

T5OUT

R1IN

R2IN

R3IN

RS-232

INPUTS**

R4IN

R5IN

SD

* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.

** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

Figure 12. ADM235L Typical Operating Circuit

–6–

REV. B

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