ADM223/ADM230L–ADM241L
+5V INPUT
T3
OUT
T1
OUT
T2
OUT
T2
IN
T1
IN
GND
V
CC
C1+
V+
C1–
1
2
3
4
5
6
7
8
9
10
NC = NO CONNECT
20 T4
OUT
19
T5
IN
1µF
6.3V
8
C1+
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
V
CC
7
V+ 9
1µF
6.3V
1µF
18 NC
17 SD
10 C1–
11 C2+
12 C2–
5
ADM230L
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
T5
OUT
T4
IN
T3
IN
V–
C2–
C2+
TTL/CMOS
INPUTS
*
1µF
16V
V– 13
1µF
16V
T1
IN
T2
IN
T1
2
T1
OUT
T2
OUT
T3
OUT
T4
OUT
RS-232
OUTPUTS
4
T2
3
T3
IN
T4
IN
14
T3
1
15
T4
20
Figure 1. ADM230L DIP/SOIC Pin Configuration
T5
IN
NC
19
18
GND
6
T5
16
17
T5
OUT
SD
ADM230L
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
DIP
Figure 2. ADM230L Typical Operating Circuit
C1+
C1–
V–
T2
OUT
R2
IN
R2
OUT
T2
IN
1
2
3
14
V+
13 V
CC
ADM231L
4
5
6
7
TOP VIEW
(Not to Scale)
12 GND
11
10
9
8
T1
OUT
R1
IN
R1
OUT
T1
IN
1µF
16V
2 C–
1 C+
13
V
CC
+12V TO –12V
VOLTAGE
CONVERTER
V+ 14
V– 3
+7.5V TO 13.2V
1µF
16V
+5V INPUT
1µF
SOIC
T1
IN
8
T1
11
C1+
C1–
V–
T2
OUT
R2
IN
R2
OUT
T2
IN
NC
1
2
3
4
5
6
7
8
NC = NO CONNECT
16
15
14
V+
V
CC
GND
T1
OUT
TTL/CMOS
INPUTS
*
T2
IN
7
T2
4
T1
OUT
T2
OUT
R1
IN
RS-232
OUTPUTS
R1
OUT
TTL/CMOS
OUTPUTS
R2
OUT
9
R1
10
ADM231L
TOP VIEW
(Not to Scale)
13
RS-232
INPUTS
**
6
GND
12
R2
5
R2
IN
12 R1
IN
11
10
9
R1
OUT
T1
IN
NC
ADM231L
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
Figure 4. ADM231L Typical Operating Circuit (DIP Pinout)
Figure 3. ADM231L DIP & SOIC Pin Configurations
–4–
REV. 0
AD [ ANALOG DEVICES ]
