T3OUT 1
T1OUT 2
T2OUT 3
R1IN 4
24 T4OUT
23 R2IN
22 R2OUT
21 SD
R1OUT 5
T2IN 6
T1IN 7
ADM236L
TOP VIEW
(Not to Scale)
20 EN
19 T4IN
18 T3IN
GND 8
VCC 9
C1+ 10
17 R3OUT
16 R3IN
15 V–
V+ 11
14 C2–
C1– 12
13 C2+
Figure 13. ADM236L DIP/SOIC Pin Configuration
T3OUT 1
T1OUT 2
T2OUT 3
R1IN 4
R1OUT 5
T2IN 6
T1IN 7
GND 8
VCC 9
C1+ 10
V+ 11
C1– 12
ADM237L
TOP VIEW
(Not to Scale)
24 T4OUT
23 R2IN
22 R2OUT
21 T5IN
20 T5OUT
19 T4IN
18 T3IN
17 R3OUT
16 R3IN
15 V–
14 C2–
13 C2+
Figure 15. ADM237L DIP/SOIC Pin Configuration
ADM223/ADM230L–ADM241L
1F
6.3V
1F
16V
T1IN
TTL/CMOS
INPUTS*
T2IN
T3IN
T4IN
R1OUT
TTL/CMOS
OUTPUTS
R2OUT
R3OUT
EN
5V INPUT
C1+ +5V TO +10V VCC
VOLTAGE
C1– DOUBLER
V+
C2+ +10V TO –10V
VOLTAGE
V–
C2– INVERTER
T1
1F
6.3V
1F
6.3V
1F
16V
T1OUT
T2
T3
T4
R1
R2
R3
T2OUT
T3OUT
RS-232
OUTPUTS
T4OUT
R1IN
R2IN
RS-232
INPUTS**
R3IN
GND ADM236L
SD
* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 14. ADM236L Typical Operating Circuit
5V INPUT
1F
6.3V
1F
16V
T1IN
C1+ +5V TO +10V VCC
VOLTAGE
C1– DOUBLER
V+
C2+ +10V TO –10V
VOLTAGE
V–
C2– INVERTER
T1
1F
6.3V
1F
6.3V
1F
16V
T1OUT
TTL/CMOS
INPUTS*
T2IN
T3IN
T4IN
T5IN
R1OUT
TTL/CMOS
OUTPUTS
R2OUT
R3OUT
T2
T3
T4
T5
20
R1
R2
R3
GND ADM237L
T2OUT
T3OUT
RS-232
OUTPUTS
T4OUT
T5OUT
R1IN
R2IN
RS-232
INPUTS**
R3IN
* INTERNAL 400k⍀ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
** INTERNAL 5k⍀ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 16. ADM237L Typical Operating Circuit
REV. B
–7–