adm232l Analog Devices, Inc., adm232l Datasheet - Page 10

• Manufacturer Part Number: adm232l
• Description: 5 V-powered Cmos Rs-232 Drivers/receivers
• Manufacturer: Analog Devices, Inc.

ADM231L–ADM234L/ADM236L–ADM241L
TTL/CMOS
TTL/CMOS
TTL/CMOS
TTL/CMOS
OUTPUTS
OUTPUTS
INPUTS
INPUTS
1
1
R1
R2
R3
R1
R2
R3
+6.3V
1
2
+6.3V
1
2
+16V
+16V
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.
T1
T2
T3
T4
T5
T1
T2
T3
T4
1µF
1µF
1µF
1µF
OUT
OUT
OUT
OUT
OUT
OUT
EN
IN
IN
IN
IN
IN
IN
IN
IN
IN
Figure 21. ADM236L Typical Operating Circuit
Figure 22. ADM237L Typical Operating Circuit
C1+
C1–
C2+
C2–
C1+
C1–
C2+
C2–
+10V TO –10V
GND
+10V TO –10V
GND
+5V TO +10V
+5V TO +10V
INVERTER
INVERTER
VOLTAGE
DOUBLER
VOLTAGE
VOLTAGE
DOUBLER
VOLTAGE
T1
T2
T3
T4
T1
T2
T3
T4
T5
ADM236L
R1
R2
R3
R1
R2
R3
ADM237L
V
V
V+
V–
V+
V–
CC
CC
20
+5V INPUT
+5V INPUT
SD
T1
T2
T3
T4
R1
R2
R3
T1
T2
T3
T4
T5
R1
R2
R3
1µF
+6.3V
1µF
+16V
1µF
+6.3V
1µF
+16V
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
RS-232
OUTPUTS
RS-232
OUTPUTS
RS-232
INPUTS
RS-232
INPUTS
+6.3V
+6.3V
1µF
1µF
2
2
Rev. C | Page 10 of 20
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
1
R1
R2
R3
R4
+6.3V
1
2
+16V
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
T1
T2
T3
T4
1µF
1µF
OUT
OUT
OUT
OUT
IN
IN
IN
IN
Figure 23. ADM238L Typical Operating Circuit
C1+
C1–
C2+
C2–
+10V TO –10V
+5V TO +10V
GND
INVERTER
VOLTAGE
DOUBLER
VOLTAGE
T1
T2
T3
T4
R1
R2
R3
R4
ADM238L
V
V+
V–
CC
+5V INPUT
1µF
+6.3V
1µF
+16V
T1
T2
T3
T4
R1
R2
R3
R4
OUT
OUT
OUT
OUT
IN
IN
IN
IN
RS-232
OUTPUTS
RS-232
INPUTS
1µF
+6.3V
2