ADM205–ADM211/ADM213
24
23
T2
T1
1
2
3
4
5
6
7
T3
R3
R1
24 T1
23 T2
1
2
3
4
5
6
OUT
OUT
OUT
IN
R1
OUT
IN
IN
IN
R2
22 R3
22 R2
GND
IN
OUT
OUT
R2
21
T4
V
21
R2
T2
OUT
CC
IN
IN
T1
IN
20
T4
20
V+
C+
OUT
OUT
OUT
R1
19 T3
ADM208
Top View
(Not to Scale)
19 T1
ADM209
Top View
(Not to Scale)
OUT
IN
T2
R1
18
R3
C–
V–
7
8
18
IN
IN
IN
GND
17 R4
16 R4
15 V–
8
9
17 R3
16 T3
OUT
OUT
V
R5
IN
9
CC
IN
IN
C1+
10
NC
R5
10
11
12
15
14
13
OUT
OUT
V+ 11
14 C2–
C2+
13
R4
EN
T3
C1– 12
R4
IN
OUT
NC = NO CONNECT
Figure 7. ADM208 DIP/SOIC/SSOP Pin Configuration
Figure 9. ADM209 DIP/SOIC/SSOP Pin Configuration
+5V INPUT
+5V INPUT
0.1µF
10
12
13
14
VCC
9
C1+
C1–
C2+
+5V TO +10V
VOLTAGE
DOUBLER
V
4
5
8
CC
0.1µF
6.3V
0.1µF
6.3V
6
7
0.1µF
C1+
C1–
+12V TO –12V
VOLTAGE
INVERTER
0.1µF
16V
+9V TO +13.2V
INPUT
V+
V–
V+ 11
V– 15
+10V TO –10V
VOLTAGE
INVERTER
0.1µF
16V
0.1µF
16V
0.1µF
16V
C2–
T1
T2
24
23
19
20
13
2
T1
T1
T2
T3
R1
R2
IN
IN
IN
OUT
T1IN
5
2
1
T1OUT
T1
T2
T3
RS-232
OUTPUTS
TTL/CMOS
INPUTS
T2
OUT
*
18
T2IN
T3IN
T2OUT
TTL/CMOS
INPUTS
RS-232
OUTPUTS
T3
16
1
T3
OUT
*
24
20
7
19
21
6
T3OUT
T4OUT
R1IN
R1
R1
R2
OUT
OUT
IN
IN
T4IN
R1OUT
R2OUT
T4
R1
21
R2
22
TTL/CMOS
OUTPUTS
RS-232
INPUTS**
18
12
R3
R4
17
11
R3
R4
R3
R4
OUT
OUT
IN
IN
R2IN
4
3
R2
R3
R3
TTL/CMOS
OUTPUTS
RS-232
INPUTS**
22
17
23
16
R3IN
R4IN
R3OUT
R4OUT
10
14
R5
R5
9
R5
IN
OUT
EN
15
NC
GND
ADM209
GND
ADM208
3
8
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
*
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT
**INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT
Figure 10. ADM209 Typical Operating Circuit
Figure 8. ADM208 Typical Operating Circuit
REV. 0
–5–