ADM222 Analog Devices, ADM222 Datasheet - Page 5

• Manufacturer Part Number: ADM222
• Description: High Speed/ +5 V/ 0.1 uF CMOS RS-232 Drivers/Receivers
• Manufacturer: Analog Devices

REV. 0
TTL/CMOS
OUTPUTS
TTL/CMOS
INPUTS
Figure 9. ADM232A DIP/SOIC Pin Configuration
Figure 10. ADM232A Typical Operating Circuit
*
0.1µF
0.1µF
R1
R2
T1
T2
C2
C1
OUT
OUT
IN
IN
11
10
12
5
9
1
3
T2
4
R2
C1+
C1–
C2+
C2–
OUT
C1+
C2+
C1–
C2–
V+
V–
IN
ADM232A
0.1µF
VOLTAGE INVERTER
VOLTAGE DOUBLER
6.3V
15
4
1
2
3
5
6
7
8
C5
GND
+5V TO +10V
+5V TO –10V
(Not to Scale)
ADM232A
TOP VIEW
**
T1
*
T2
INTERNAL 5k PULL-DOWN RESISTOR
ON EACH RS-232 INPUT
V
ON EACH TTL/MOS INPUT
INTERNAL 400k PULL-UP RESISTOR
R2
R1
CC
+5V INPUT
16
15
13
12
11
14
10
9
V+
V–
V
GND
T1
R1
T1
T2
R2
R1
CC
13
7
2
6
14
OUT
IN
IN
OUT
OUT
IN
8
T1
T2
R1
R2
C4
0.1µF
OUT
OUT
IN
IN
C3
0.1µF
RS-232
INPUTS
RS-232
OUTPUTS
**
–5–
OUTPUTS
TTL/CMOS
TTL/CMOS
INPUTS
Figure 11. ADM242 DIP/SOIC Pin Configuration
Figure 12. ADM242 Typical Operating Circuit
*
*
0.1µF
0.1µF
R2
R1
EN
C1
T1
T2
C2
OUT
OUT
IN
IN
ADM222/ADM232A/ADM242
12
11
T2
13
10
2
4
5
6
1
R2
C1+
C1–
C2+
C2–
OUT
EN
V–
V+
IN
C1+
C2+
C1–
C2–
16
0.1µF
GND
VOLTAGE DOUBLER
VOLTAGE INVERTER
4
1
2
3
5
6
7
8
9
6.3V
C5
+5V TO +10V
(Not to Scale)
+5V TO –10V
ADM242
TOP VIEW
**
*
T1
T2
ON EACH RS-232 INPUT
V
INTERNAL 400k PULL-UP RESISTOR
ON EACH TTL/MOS INPUT
INTERNAL 5k PULL-DOWN RESISTOR
R2
CC
R1
ADM242
17
+5V INPUT
18
17
16
15
14
13
12
11
10
V+
V–
SHDN
GND
T1
T1
T2
V
R1
R1
R2
CC
OUT
IN
IN
IN
OUT
OUT
7
8
15
3
14
9
18
T1
T2
R1
R2
SHDN
OUT
OUT
IN
IN
C4
0.1µF
C3
0.1µF
RS-232
INPUTS
RS-232
OUTPUTS
**