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