ADM207E AD [Analog Devices], ADM207E Datasheet - Page 6

• Manufacturer Part Number: ADM207E
• Description: EMI/EMC Compliant, +-15 kV ESD Protected, RS-232 Line Drivers/Receivers
• Manufacturer: AD [Analog Devices]

ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
Mnemonic
V
V+
V–
GND
C1+, C1–
C2+, C2–
T
T
R
R
EN/EN
SHDN/SHDN
CC
IN
OUT
IN
OUT
Figure 9. ADM213E Pin Configuration
Function
Power Supply Input: +5 V
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. 0.1 F capacitor is recommended but larger capacitors up
to 47 F may be used.
External Capacitor 2 is connected between these pins. 0.1 F capacitor is recommended but larger capacitors up
to 47 F may be used.
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels. An internal 400 k pull-up resistor to V
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 k pull-down resistor to GND is
connected on each input.
Receiver Enable (Active High on ADM213E, Active Low on ADM211E); This input is used to enable/disable the
receiver outputs. With EN = Low ADM211E (EN = High ADM213E), the receiver outputs are enabled. With EN
= High (EN = Low ADM213E), the receiver outputs are placed in a high impedance state.
Shutdown Control (Active Low on ADM213E, Active High on ADM211E); Refer to Table II. In shutdown the
charge pump is disabled, the transmitter outputs are turned off and all receiver outputs (ADM211E), receivers R1,
R2, R3 (ADM213E) are placed in a high impedance state. Receivers R4 and R5 on the ADM213E continue to
operate normally during shutdown. Power consumption in shutdown for all parts reduces to 5 W.
Receiver Outputs. These are CMOS output logic levels.
R2
R1
T3
T1
T2
GND
R2
R1
T2
T1
V
C1+
C1–
OUT
OUT
OUT
OUT
OUT
CC
V+
IN
IN
IN
IN
*
ACTIVE IN SHUTDOWN
10
11
12
13
14
1
2
3
4
5
6
7
8
9
(Not to Scale)
ADM213E
TOP VIEW
28
27
26
25
24
23
22
21
20
19
18
17
16
15
T4
R3
R3
EN
R4
R4
T4
T3
R5
R5
V–
C2–
C2+
SHDN
OUT
IN
IN
IN
OUT
IN
OUT
OUT
IN
*
*
*
*
10%.
PIN FUNCTION DESCRIPTIONS
–6–
TTL/CMOS
TTL/CMOS
OUTPUTS
INPUTS
Figure 10. ADM213E Typical Operating Circuit
*
**INTERNAL 5k
***ACTIVE IN SHUTDOWN
*INTERNAL 400k
R4
R5
0.1 F
0.1 F
R1
R2
R3
16V
OUT
OUT
16V
T1
T2
T3
T4
OUT
OUT
OUT
EN
***
***
IN
IN
IN
IN
14
15
19
12
16
20
26
22
24
21
5
7
6
8
PULL-DOWN RESISTOR ON EACH RS-232 INPUT
C1+
C1–
C2+
C2–
PULL-UP RESISTOR ON EACH CMOS INPUT
GND
+10V TO –10V
10
+5V TO +10V
INVERTER
VOLTAGE
VOLTAGE
DOUBLER
ADM213E
T2
T1
T3
T4
R2
R3
R4
R5
R1
V
V–
CC
V+
17
18
11
13
27
23
25
+5V INPUT
28
4
2
3
1
9
T1
T2
T3
T4
SHDN
R1
R2
R3
R4
R5
0.1 F
6.3V
0.1 F
16V
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
***
***
RS-232
INPUTS
RS-232
OUTPUTS
REV. B
0.1 F
CC
**