ADM223 Просмотр технического описания (PDF) - Analog Devices

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ADM223

5 V-Powered CMOS RS-232 Drivers/Receivers

Analog Devices 

ADM223/ADM230L–ADM241L

T3OUT 1

T1OUT 2

20 T4OUT

19 T5IN

T2OUT 3

18 NC

T2IN 4

T1IN 5

GND 6

ADM230L

TOP VIEW

(Not to Scale)

17 SD

16 T5OUT

15 T4IN

VCC 7

14 T3IN

C1+ 8

13 V–

V+ 9

12 C2–

C1– 10

11 C2+

NC = NO CONNECT

Figure 1. ADM230L DIP/SOIC Pin Configuration

DIP

C1+ 1

C1– 2

V– 3

T2OUT 4

R2IN 5

R2OUT 6

T2IN 7

14 V+

13 VCC

ADM231L

TOP VIEW

(Not to Scale)

12 GND

11 T1OUT

10 R1IN

9 R1OUT

8 T1IN

SOIC

C1+ 1

C1– 2

V– 3

T2OUT 4

R2IN 5

R2OUT 6

T2IN 7

NC 8

ADM231L

TOP VIEW

(Not to Scale)

16 V+

15 VCC

14 GND

13 T1OUT

12 R1IN

11 R1OUT

10 T1IN

9 NC

NC = NO CONNECT

Figure 3. ADM231L DIP and SOIC Pin Configurations

1␮F

6.3V

1␮F

16V

T1IN

TTL/CMOS

INPUTS*

T2IN

T3IN

T4IN

T5IN

NC

5V INPUT

C1+ +5V TO +10V VCC

VOLTAGE

C1– DOUBLER

V+

C2+ +10V TO –10V

VOLTAGE

V–

C2– INVERTER

T1

1␮F

6.3V

1␮F

6.3V

1␮F

16V

T1OUT

T2

T2OUT

T3

T3OUT

RS-232

OUTPUTS

T4

T4OUT

T5

GND ADM230L

T5OUT

SD

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

Figure 2. ADM230L Typical Operating Circuit

5V INPUT

1␮F

1␮F

16V

TTL/CMOS

INPUTS*

T1IN

T2IN

TTL/CMOS

OUTPUTS

R1OUT

R2OUT

VCC

V+

C1+

+12V TO –12V

C1–

VOLTAGE

INVERTER

V–

T1

T2

R1

R2

GND ADM231L

7.5V TO 13.2V

1␮F

16V

T1OUT

T2OUT

RS-232

OUTPUTS

R1IN

R2IN

RS-232

INPUTS**

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

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

Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)

–4–

REV. B

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