ADM223/ADM230L–ADM241L
+5V INPUT
12 C1+
1µF
16V
14 C1–
15 C2+
1µF
16V
16 C2–
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
V
CC
11
V+ 13
V– 17
1µF
6.3V
1µF
T3
OUT
T1
OUT
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
1
2
3
4
5
6
7
8
9
28 T4
OUT
27 R3
IN
26
R3
OUT
T1
IN
T2
IN
T3
IN
T4
IN
R1
OUT
R2
OUT
1µF
16V
25 SD
24 EN
23 R4
IN
TTL/CMOS
INPUTS
*
7
T1
2
T1
OUT
T2
OUT
6
T2
3
RS-232
OUTPUTS
20
T3
ADM241L
TOP VIEW
(Not to Scale)
1
22
21
20
19
R4
OUT
T4
IN
T3
IN
R5
OUT
T3
OUT
T4
OUT
R1
IN
R2
IN
RS-232
INPUTS
**
21
T4
28
8
R1
9
GND 10
V
CC
11
C1+ 12
V+ 13
C1– 14
5
R2
4
18 R5
IN
17
V–
TTL/CMOS
OUTPUTS
R3
OUT
R4
OUT
26
R3
27
R3
IN
R4
IN
16 C2–
15
C2+
22
R4
23
R5
OUT
EN
19
24
R5
18
25
R5
IN
SD
GND
10
ADM241L
Figure 21. ADM241L SOIC/SSOP Pin Configuration
*
INTERNAL 400k
Ω
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5k
Ω
PULL-DOWN RESISTOR ON EACH RS-232 INPUT
Figure 22. ADM241L Typical Operating Circuit
+5V INPUT
12 C1+
T3
OUT
T1
OUT
T2
OUT
R2
IN
R2
OUT
T2
IN
T1
IN
R1
OUT
R1
IN
1
2
3
4
5
6
7
8
9
28 T4
OUT
27 R3
IN
26
R3
OUT
1µF
16V
14 C1–
15 C2+
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
V
CC
11
V+ 13
V– 17
1µF
6.3V
1µF
1µF
16V
16 C2–
1µF
16V
25 SD
24 EN
23 R4
IN
T1
IN
T2
IN
T3
IN
T4
IN
R1
OUT
R2
OUT
TTL/CMOS
OUTPUTS
7
T1
2
T1
OUT
T2
OUT
6
T2
3
ADM223
TOP VIEW
(Not to Scale)
22
21
20
19
R4
OUT
T4
IN
TTL/CMOS
INPUTS
*
RS-232
OUTPUTS
20
T3
1
T3
OUT
T4
OUT
R1
IN
R2
IN
RS-232
INPUTS
**
21
T4
28
T3
IN
R5
OUT
GND 10
V
CC
11
C1+ 12
V+ 13
C1– 14
8
R1
9
18 R5
IN
17
V–
5
R2
4
16 C2–
15
C2+
R3
OUT
R4
OUT
26
R3
27
R3
IN
R4
IN
22
R4
23
R5
OUT
EN
19
24
R5
18
25
R5
IN
SD
GND
10
ADM223
Figure 23. ADM223 SOIC/SSOP Pin Configuration
*
INTERNAL 400k
Ω
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5k
Ω
PULL-DOWN RESISTOR ON EACH RS-232 INPUT
NOTE: RECEIVERS R4 AND R5 REMAIN ACTIVE IN SHUTDOWN.
Figure 24. ADM223 Typical Operating Circuit
REV. 0
–9–
AD [ ANALOG DEVICES ]
