ADM223/ADM230L–ADM241L
+5V INPUT
9
C1+
V
CC
10
+5V TO +10V
VOLTAGE
DOUBLER
1µF
1µF
6.3V
1µF
6.3V
12 C1–
V+ 11
T2
T1
24 T3
1
13
14
C2+
C2–
+10V TO –10V
VOLTAGE
INVERTER
OUT
OUT
1µF
16V
V–
15
2
1µF
16V
2
23
R3
OUT
IN
R2
3
4
22 R3
IN
OUT
IN
5
T1
T2
T1
T2
T3
T1
OUT
IN
IN
IN
IN
R2
21
20
T4
T4
OUT
T2
OUT
18
19
1
T1
IN
5
OUT
IN
TTL/CMOS
INPUTS
RS-232
OUTPUTS
*
R1
6
ADM238L
TOP VIEW
(Not to Scale)
19 T3
18 T2
OUT
24
T3
T4
R1
R2
T3
T4
OUT
R1
IN
7
IN
T4
21
6
20
7
OUT
GND
8
17 R4
16 R4
OUT
V
R1
R1
R2
9
OUT
OUT
IN
IN
CC
IN
C1+
V–
10
11
12
15
14
13
4
3
R2
TTL/CMOS
OUTPUTS
RS-232
INPUTS**
C2–
C2+
V+
22
17
R3
R4
23
16
R3
R4
R3
R4
IN
OUT
OUT
C1–
IN
GND
8
ADM238L
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
Figure 17. ADM238L DIP/SOIC Pin Configuration
Figure 18. ADM238L Typical Operating Circuit
+5V INPUT
1µF
V
4
5
8
CC
6
7
+12V TO –12V
VOLTAGE
INVERTER
C1+
C1–
1µF
16V
+7.5V TO +13.2V
INPUT
V+
V–
R1
24 T1
1
OUT
IN
1µF
16V
R1
2
23
T2
IN
IN
GND
3
4
22 R2
OUT
T1
T2
T1
T2
T1
IN
IN
IN
24
23
19
20
13
2
OUT
V
21
20
R2
T2
CC
IN
RS-232
OUTPUTS
TTL/CMOS
INPUTS
T2
OUT
V+
C+
5
*
OUT
OUT
6
ADM239L
TOP VIEW
(Not to Scale)
19 T1
16
1
T3
T3
R1
R2
T3
OUT
R3
7
18
C–
V–
IN
R1
R1
R2
OUT
OUT
IN
IN
8
17 R3
16 T3
OUT
R2
21
22
R5
IN
9
IN
NC
R5
10
11
12
15
14
13
TTL/CMOS
OUTPUTS
RS-232
INPUTS**
OUT
OUT
18
12
R3
R4
R3
R4
17
11
R3
R4
OUT
OUT
IN
IN
R4
EN
T3
R4
IN
OUT
10
14
R5
R5
R5
9
IN
OUT
EN
NC = NO CONNECT
15
NC
GND
ADM239L
3
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
Figure 19. ADM239L DIP/SOIC Pin Configuration
Figure 20. ADM239L Typical Operating Circuit
REV. 0
–8–
ADI [ ADI ]
