EMI/EMC-Compliant, ±15 kV ESDProtected,
RS-232 Line Drivers/Receivers
ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
FEATURES
Complies with 89/336/EEC EMC directive
ESD protection to IEC 1000-4-2 (801-2)
Contact discharge: ±8 kV
Air-gap discharge: ±15 kV
Human body model: ±15 kV
EFT/burst immunity (IEC 1000-4-4)
Low EMI emissions (EN 55022)
Eliminates need for TransZorb® suppressors
230 kbps data rate guaranteed
Single 5 V power supply
Shutdown mode 1 μW
Plug-in upgrade for MAX2xxE
Space saving TSSOP package available
0.1µF
10V
+
CONNECTION DIAGRAM
5V INPUT
12
14
C1+
C1–
C2+
C2–
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
T1
T2
T3
T4
R1
R2
R3
R4
R5
V
CC 11
V+
13
0.1µF
+ 6.3V
0.1µF
+ 10V
+
0.1µF
0.1µF
10V
T1
IN
T2
IN
T3
IN
T4
IN
R1
OUT
R2
OUT
TTL/CMOS
OUTPUTS
R3
OUT
R4
OUT
R5
OUT
EN (ADM211E)
EN (ADM213E)
+
15
16
V–
17
7
2
T1
OUT
T2
OUT
T3
OUT
T4
OUT
R1
IN
R2
IN
R3
IN
R4
IN
R5
IN
SHDN (ADM211E)
SHDN (ADM213E)
RS-232
INPUTS
2
RS-232
OUTPUTS
TTL/CMOS
INPUTS
1
6
3
20
1
21
28
8
9
APPLICATIONS
Laptop computers
Notebook computers
Printers
Peripherals
Modems
5
4
26
27
22
23
19
18
25
GENERAL DESCRIPTION
The ADM2xxE is a family of robust RS-232 and V.28 interface
devices that operate from a single 5 V power supply. These pro-
ducts are suitable for operation in harsh electrical environments
and are compliant with the EU directive on electromagnetic
compatibility (EMC) (89/336/EEC). The level of emissions and
immunity are both in compliance. EM immunity includes ESD
protection in excess of ±15 kV on all I/O lines (IEC 1000-4-2),
fast transient burst protection (IEC 100044), and radiated
immunity (IEC 1000-4-3). EM emissions include radiated and
conducted emissions as required by Information Technology
Equipment EN 55022, CISPR 22.
All devices fully conform to the EIA-232-E and CCITT V.28
specifications and operate at data rates up to 230 kbps. Shut-
down and enable control pins are provided on some of the
products (see Table 1).
The shutdown function on the ADM211E disables the charge
pump and all transmitters and receivers. On the ADM213E the
Table 1. Selection Table
Model
ADM206E
ADM208E
ADM211E
ADM213E
1
24
GND
10
ADM211E/
ADM213E
1
INTERNAL
2
INTERNAL
400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
Figure 1.
charge pump, all transmitters, and three of the five receivers are
disabled. The remaining two receivers remain active, thereby
allowing monitoring of peripheral devices. This feature allows
the device to be shut down until a peripheral device begins
communication. The active receivers can alert the processor,
which can then take the ADM213E out of the shutdown mode.
Operating from a single 5 V supply, four external 0.1 μF
capacitors are required.
The ADM207E and ADM208E are available in 24-lead PDIP, SSOP,
available in 28-lead SSOP, TSSOP, and SOIC_W packages. All
products are backward compatible with earlier ADM2xx products,
facilitating easy upgrading of older designs.
Shutdown
Yes
No
No
Yes
Yes (SHDN)
Enable
Yes
No
No
Yes
Yes (EN)
Packages
RW-24
N-24-1, RW-24, RS-24, RU-24
N-24-1, RW-24, RS-24, RU-24
RW-28, RS-28, RU-28
RW-28, RS-28, RU-28
Supply Voltage
5V
5V
5V
5V
5V
Drivers
4
5
4
4
4
Receivers
3
3
4
5
5
ESD Protection
±15 kV
±15 kV
±15 kV
±15 kV
±15 kV
Two receivers active.
Rev. E
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.
00068-001
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