ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
5V INPUT
T3
OUT 1
T1
OUT 2
T2
OUT 3
R2
IN 4
R2
OUT 5
T2
IN 6
T1
IN 7
28
T4
OUT
27
R3
IN
26
R3
OUT
25
0.1µF
16V
+
12
C1+
14
C1–
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
T1
T2
T3
T4
R1
R2
R3
R4
R5
V
CC
11
V+
13
V–
17
0.1µF
+
6.3V
0.1µF
+
16V
+
0.1µF
SHDN
24
EN
0.1µF
16V
T1
IN
T2
IN
T3
IN
T4
IN
R1
OUT
00068-010
+
15
C2+
16
C2–
TOP VIEW
22
R4
OUT1
R1
OUT 8
(Not to Scale)
21
T4
IN
R1
IN 9
GND
10
V
CC 11
C1+
12
V+
13
C1–
14
20
T3
IN
19
R5
OUT1
18
R5
IN1
17
V–
16
C2–
15
C2+
ADM213E
23
R4
IN1
7
2
T1
OUT
T2
OUT
T3
OUT
T4
OUT
R1
IN
R2
IN
R3
IN
R4
IN3
R5
IN3
6
3
TTL/CMOS
INPUTS
1
20
1
RS-232
OUTPUTS
21
28
8
9
1
ACTIVE IN SHUTDOWN.
R2
OUT
5
4
Figure 10. ADM213E Pin Configuration
TTL/CMOS
OUTPUTS
R3
OUT
R4
OUT3
R5
OUT3
EN
26
27
RS-232
INPUTS
2
22
23
19
18
24
25
GND
10
ADM213E
SHDN
Figure 11. ADM213E Typical Operating Circuit
Table 6. Pin Function Descriptions
Mnemonic
V
CC
V+
V–
GND
C1+, C1–
C2+, C2–
T
IN
T
OUT
R
IN
R
OUT
EN/EN
Function
Power Supply Input (5 V ± 10%).
Internally Generated Positive Supply (+9 V nominal).
Internally Generated Negative Supply (−9 V nominal).
Ground Pin. Must be connected to 0 V.
External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors (up to
47 μF) can be used.
External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended, but larger capacitors (up to
47 μF) can be used.
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 kΩ pull-up resistor to V
CC
is connected on
each input.
Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±9 V).
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is connected on
each input.
Receiver Outputs. These are TTL/CMOS output logic levels.
Receiver Enable (active high on ADM213E, active low on ADM211E). This input is used to enable/disable the receiver
outputs. With EN = low for the ADM211E (EN = high for the ADM213E), the receiver outputs are enabled. With EN = high
for the ADM211E (EN = low for the ADM213E), the receiver outputs are placed in a high impedance state. (See Table 3
and Table 4.)
Shutdown Control (active low on ADM213E, active high on ADM211E). When the ADM211E is in shutdown, the charge
pump is disabled, the transmitter outputs are turned off, and all receiver outputs are placed in a high impedance state.
When the ADM213E is in shutdown, the charge pump is disabled, the transmitter outputs are turned off, and Receiver R1 to
Receiver R3 are placed in a high impedance state; Receiver R4 and Receiver R5 on the ADM213E continue to operate
normally during shutdown. (See Table 3 and Table 4.) Power consumption for all parts reduces to 5 μW in shutdown.
SHDN/SHDN
Rev. E | Page 7 of 20
00068-011
1
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
3
ACTIVE IN SHUTDOWN.
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