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Analog Devices - RS-232 Line Drivers/Receivers

Numéro de référence ADM213E
Description RS-232 Line Drivers/Receivers
Fabricant Analog Devices 
Logo Analog Devices 





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ADM213E fiche technique
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
APPLICATIONS
Laptop computers
Notebook computers
Printers
Peripherals
Modems
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
CONNECTION DIAGRAM
5V INPUT
0.1µF+
10V
0.1µF+
10V
12 C1+
14 C1–
+5V TO +10V
VOLTAGE
DOUBLER
VCC 11
V+ 13
15 C2+ +10V TO –10V
VOLTAGE
16 C2– INVERTER
V– 17
+
0.1µF
6.3V
+
0.1µF
0.1µF
+ 10V
T1IN
TTL/CMOS
INPUTS1
T2IN
T3IN
T4IN
R1OUT
R2OUT
TTL/CMOS
OUTPUTS
R3OUT
R4OUT
R5OUT
EN (ADM211E)
EN (ADM213E)
7
6
20
21
8
5
26
22
19
24
T1 2
T2 3
T3 1
T4 28
R1 9
R2 4
R3 27
R4 23
R5 18
ADM211E/ 25
GND ADM213E
10
T1OUT
T2OUT
T3OUT
RS-232
OUTPUTS
T4OUT
R1IN
R2IN
R3IN
RS-232
INPUTS2
R4IN
R5IN
SHDN (ADM211E)
SHDN (ADM213E)
1 INTERNAL 400kPULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2 INTERNAL 5kPULL-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.
Table 1. Selection Table
Model
Supply Voltage
ADM206E 5 V
ADM207E 5 V
ADM208E 5 V
ADM211E 5 V
ADM213E 5 V
1 Two receivers active.
Drivers
4
5
4
4
4
Receivers
3
3
4
5
5
ESD Protection
±15 kV
±15 kV
±15 kV
±15 kV
±15 kV
Shutdown
Yes
No
No
Yes
Yes (SHDN)1
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
Rev. E
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2006 Analog Devices, Inc. All rights reserved.

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