ADM231L–ADM234L/ADM236L–ADM241L
Rev. C | Page 10 of 20
T1IN
T1OUT
T2IN
T2OUT
RS-232
OUTPUTS
T3IN
T4IN
R1OUT
R1IN
R2OUT
R2IN
TTL/CMOS
OUTPUTS
R3IN
R3OUT
T3OUT
T4OUT
1
F
+6.3V
1
F
+16V
C1+
C1–
C2–
C2+
V–
1
F
+16V
+10V TO –10V
VOLTAGE
INVERTER
1
F
+6.3V
1
F
+6.3V
+5V INPUT
VCC
+5V TO +10V
VOLTAGE
DOUBLER
T1
T2
T3
T4
R1
R2
R3
V+
SD
ADM236L
GND
00070-
0-
015
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
EN
Figure 21. ADM236L Typical Operating Circuit
T1IN
T1OUT
T2IN
T2OUT
RS-232
OUTPUTS
T3IN
T4IN
T5IN
R1OUT
R1IN
R2OUT
R2IN
TTL/CMOS
OUTPUTS
R3IN
R3OUT
T3OUT
T4OUT
T5OUT
1
F
+6.3V
1
F
+16V
C1+
C1–
C2–
C2+
V–
1
F
+16V
+10V TO –10V
VOLTAGE
INVERTER
1
F
+6.3V
1
F
+6.3V
+5V INPUT
VCC
+5V TO +10V
VOLTAGE
DOUBLER
T1
T2
T3
T4
T5
R1
R2
R3
V+
ADM237L
20
GND
00070-
0-
017
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 22. ADM237L Typical Operating Circuit
ADM238L
T1IN
T1
T1OUT
T2IN
T2
T2OUT
RS-232
OUTPUTS
T3
T4
T3IN
T4IN
R1OUT
R1
R1IN
R2OUT
R2
R2IN
TTL/CMOS
OUTPUTS
R3IN
R4IN
R3OUT
R4OUT
T3OUT
T4OUT
GND
R3
R4
1
F
+6.3V
1
F
+16V
C1+
C1–
C2–
C2+
V–
1
F
+16V
+10V TO –10V
VOLTAGE
INVERTER
1
F
+6.3V
1
F
+6.3V
+5V INPUT
V+
VCC
+5V TO +10V
VOLTAGE
DOUBLER
00070-
0-
019
TTL/CMOS
INPUTS1
RS-232
INPUTS2
1INTERNAL 400k
PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 23. ADM238L Typical Operating Circuit