ADM223/ADM230L–ADM241L

–4–

REV. B

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

TOP VIEW

(Not to Scale)

ADM230L

V+

V–

C1+

C1–

C2+

C2–

GND

SD

NC

NC = NO CONNECT

Figure 1. ADM230L DIP/SOIC Pin Configuration

DIP

1

2

3

4

5

6

7

14

13

12

11

10

9

8

TOP VIEW

(Not to Scale)

ADM231L

V+

V–

C1+

C1–

GND

SOIC

NC

NC = NO CONNECT

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

TOP VIEW

(Not to Scale)

ADM231L

V+

GND

V–

C1+

C1–

NC

Figure 3. ADM231L DIP and SOIC Pin Configurations

ADM230L

1 F

6.3V

1 F

16V

C1+

C1–

C2–

C2+

T1

T2

TTL/CMOS

INPUTS*

RS-232

OUTPUTS

V–

1 F

16V

+10V TO –10V

VOLTAGE

INVERTER

1 F

6.3V

1 F

6.3V

5V INPUT

V+

+5V TO +10V

VOLTAGE

DOUBLER

GND

* INTERNAL 400k

PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.

T3

T4

T5

NC

SD

Figure 2. ADM230L Typical Operating Circuit

ADM231L

1 F

16V

C1+

C1–

T1

T2

TTL/CMOS

INPUTS*

RS-232

OUTPUTS

R1

TTL/CMOS

OUTPUTS

RS-232

INPUTS**

R2

V–

1 F

16V

+12V TO –12V

VOLTAGE

INVERTER

V+

GND

* INTERNAL 400k

PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.

** INTERNAL 5k

PULL-DOWN RESISTOR ON EACH RS-232 INPUT.

7.5V TO 13.2V

1 F

5V INPUT

Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)

OBSOLETE