ADM223 Ver la hoja de datos (PDF) - Analog Devices

Número de pieza

componentes Descripción

Fabricante

ADM223

5 V-Powered CMOS RS-232 Drivers/Receivers

Analog Devices 

C1+ 1

V+ 2

C1– 3

C2+ 4

C2– 5

V– 6

T2OUT 7

R2IN 8

ADM232L

TOP VIEW

(Not to Scale)

16 VCC

15 GND

14 T1OUT

13 R1IN

12 R1OUT

11 T1IN

10 T2IN

9 R2OUT

Figure 5. ADM232L DIP/SOIC Pin Configuration

T2IN 1

T1IN 2

20 R2OUT

19 R2IN

R1OUT 3

18 T2OUT

R1IN 4

T1OUT 5

GND 6

ADM233L

TOP VIEW

(Not to Scale)

17 V–

16 C2–

15 C2+

VCC 7

14 V+

C1+ 8

13 C1–

GND 9

12 V–

C2– 10

11 C2+

Figure 7. ADM233L DIP Pin Configuration

ADM223/ADM230L–ADM241L

1␮F

6.3V

1␮F

16V

TTL/CMOS

INPUTS*

T1IN

T2IN

TTL/CMOS

OUTPUTS

R1OUT

R2OUT

5V INPUT

C1+ +5V TO +10V VCC

VOLTAGE

C1– DOUBLER

V+

C2+ +10V TO –10V

VOLTAGE

V–

C2– INVERTER

T1

T2

1␮F

6.3V

1␮F

6.3V

1␮F

16V

T1OUT

T2OUT

RS-232

OUTPUTS

R1

R2

GND ADM232L

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 6. ADM232L Typical Operating Circuit

5V INPUT

TTL/CMOS

INPUTS*

T1IN

T2IN

TTL/CMOS

OUTPUTS

R1OUT

R2OUT

DO NOT MAKE

CONNECTIONS TO

THESE PINS

INTERNAL

–10V POWER

SUPPLY

INTERNAL

+10V POWER

SUPPLY

VCC

T1

T2

R1

R2

C1+

C2+

C1–

C2+

ADM233L

V–

C2–

V–

C2–

V+ GND GND

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 8. ADM233L Typical Operating Circuit

REV. B

–5–

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