adm208e Analog Devices, Inc., adm208e Datasheet

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adm208e

Manufacturer Part Number
adm208e
Description
Emi/emc-compliant, ?15 Kv Esd?protected, Rs-232 Line Drivers/receivers
Manufacturer
Analog Devices, Inc.
Datasheet

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FEATURES
Complies with 89/336/EEC EMC directive
ESD protection to IEC 1000-4-2 (801-2)
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
Table 1. Selection Table
Model
ADM206E
ADM207E
ADM208E
ADM211E
ADM213E
1
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.
Trademarks and registered trademarks are the property of their respective owners.
Two receivers active.
Contact discharge: ±8 kV
Air-gap discharge: ±15 kV
Human body model: ±15 kV
Supply Voltage
5 V
5 V
5 V
5 V
5 V
ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
Drivers
4
4
5
4
4
Receivers
3
3
4
5
5
EMI/EMC-Compliant, ±15 kV ESD­Protected,
ESD Protection
±15 kV
±15 kV
±15 kV
±15 kV
±15 kV
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
TTL/CMOS
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.
OUTPUTS
RS-232 Line Drivers/Receivers
TTL/CMOS
INPUTS
Shutdown
Yes
No
No
Yes
Yes ( SHDN )
EN (ADM211E)
EN (ADM213E)
1
2
INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
1
R1
R2
R3
R4
R5
0.1µF
0.1µF
T1
T2
T3
T4
OUT
OUT
OUT
OUT
OUT
10V
10V
IN
IN
IN
IN
1
+
+
CONNECTION DIAGRAM
12
14
15
16
19
20
21
26
22
24
7
6
8
5
C1+
C1–
C2+
C2–
©2006 Analog Devices, Inc. All rights reserved.
Enable
Yes
No
No
Yes
Yes (EN)
GND
+10V TO –10V
10
+5V TO +10V
DOUBLER
INVERTER
VOLTAGE
VOLTAGE
Figure 1.
T1
T2
T3
T4
ADM211E/
ADM213E
R2
R4
R5
R1
R3
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
V
V+
V–
CC
28
27
18
25
11
13
17
23
2
3
1
9
4
5V INPUT
+
+
www.analog.com
R1
R2
R3
R4
R5
SHDN (ADM211E)
SHDN (ADM213E)
0.1µF
6.3V
0.1µF
10V
T1
T2
T3
T4
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
RS-232
INPUTS
RS-232
OUTPUTS
+
0.1µF
2

Related parts for adm208e

adm208e Summary of contents

Page 1

... 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 ...

Page 2

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Connection Diagram ....................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ........................... 5 Typical Performance Characteristics ............................................. 8 Theory of Operation ...................................................................... 10 Circuit Description..................................................................... 10 REVISION HISTORY 9/06—Rev Rev. E Updated Format..................................................................Universal Changes to Figure 1 and Table 1..................................................... 1 Changes to Table 2 ...

Page 3

... EM IMMUNITY ESD Protection (I/O Pins) Radiated Immunity 1 Guaranteed by design. Table 3. ADM211E Truth Table EN SHDN Status 0 0 Normal operation 0 1 Normal operation Shutdown don’t care. ADM206E/ADM207E/ADM208E/ADM211E/ADM213E unless otherwise noted. MIN MAX Min Typ Max Unit 4.5 5.0 5 0.2 10 μ μ ...

Page 4

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V– Input Voltages Output Voltages T OUT R OUT Short-Circuit Duration T OUT Power Dissipation N-24-1 PDIP (Derate 13.5 mW/°C above 70°C) RW-24 SOIC_W (Derate 12 mW/°C above 70°C) RS-24 SSOP (Derate 12 mW/°C above 70°C) RU-24 TSSOP (Derate 12 mW/° ...

Page 5

... R2 22 OUTPUTS OUT OUT EN 20 ADM206E GND 8 1 INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. 2 INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT. Figure 3. ADM206E Typical Operating Circuit ADM206E/ADM207E/ADM208E/ADM211E/ADM213E T4 OUT OUT SHDN OUT R3 IN V– C2– ...

Page 6

... R2 4 OUT TTL/CMOS OUTPUTS OUT OUT ADM208E GND 8 1 INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT. 2 INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT. Figure 7. ADM208E Typical Operating Circuit T3 OUT OUT OUT OUT R4 IN V– ...

Page 7

... 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. ADM206E/ADM207E/ADM208E/ADM211E/ADM213E OUT IN ...

Page 8

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E TYPICAL PERFORMANCE CHARACTERISTICS 0.33 0 LOG FREQUENCY (MHz) Figure 12. EMC Conducted Emissions –1 –3 –5 –7 0 500 1000 1500 LOAD CAPACITANCE (pF) Figure 13. Transmitter Output Voltage High/Low vs. Load Capacitance (230 kbps O –5 –10 – ...

Page 9

... V– 250 200 150 V+ 100 50 0 4.5 4.7 4.9 5.1 V (V) CC Figure 18. Charge Pump Impedance vs. Power Supply Voltage ADM206E/ADM207E/ADM208E/ADM211E/ADM213E –5 –10 –15 5.3 5.5 0 Figure 19. Charge Pump V+, V− vs. Load Current Rev Page V– LOAD CURRENT (mA) 20 ...

Page 10

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E THEORY OF OPERATION The ADM206E/ADM207E/ADM208E/ADM211E/ADM213E are ruggedized RS-232 line drivers/receivers that operate from a single 5 V supply. Step-up voltage converters coupled with level shifting transmitters and receivers allow RS-232 levels to be developed while operating from a single 5 V supply. Features include low power consumption, high transmission ...

Page 11

... ESD (electrostatic) and EFT (electrical fast transient) discharges. A simplified schematic of the ADM206E/ADM207E/ADM208E/ADM211E/ADM213E protection structure is shown in Figure 24 and Figure 25. Each input and output contains two back-to-back high speed clamping diodes. During normal operation, with maximum RS­ ...

Page 12

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E destruction can occur immediately because of arcing or heating. Even if catastrophic failure does not occur immediately, the device can suffer from parametric degradation that can result in degraded performance. The cumulative effects of continuous exposure can eventually lead to complete failure. I/O lines are particularly vulnerable to ESD damage. Simply ...

Page 13

... Test results are classified according to the following: • Classification 1: Normal performance within speci- fication limits. • Classification 2: Temporary degradation or loss of performance that is self recoverable. ADM206E/ADM207E/ADM208E/ADM211E/ADM213E • Classification 3: Temporary degradation or loss of function or performance that requires operator intervention or system reset. • Classification 4: Degradation or loss of function that is not recoverable due to damage ...

Page 14

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E Table 10. Test Severity Levels (IEC 1000-4-3) Level Field Strength (V/ EMISSIONS/INTERFERENCE EN 55022, CISPR 22 defines the permitted limits of radiated and conducted interference from information technology (IT) equipment. The objective of the standard is to minimize the level of emissions, both conducted and radiated. ...

Page 15

... The ADM2xxE were operated at maximum baud rates and configured like a typical RS-232 interface. Testing for radiated emissions was carried out in a shielded anechoic chamber. ADM206E/ADM207E/ADM208E/ADM211E/ADM213E RECEIVER ...

Page 16

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E OUTLINE DIMENSIONS PIN 1 0.210 (5.33) MAX 0.150 (3.81) 0.130 (3.30) 0.115 (2.92) 0.022 (0.56) 0.018 (0.46) 0.014 (0.36) 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 1.280 (32.51) 1.250 (31.75) 1.230 (31.24 0.280 (7.11) 0.250 (6.35) 1 0.240 (6.10) 12 0.100 (2.54) BSC 0.060 (1.52) 0.015 (0.38) 0.015 (0.38) MIN SEATING PLANE 0.005 (0.13) MIN 0.070 (1.78) 0.060 (1.52) 0.045 (1.14) COMPLIANT TO JEDEC STANDARDS MS-001-AF CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN ...

Page 17

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E 18.10 (0.7126) 17.70 (0.6969 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.51 (0.0201) 0.10 1.27 (0.0500) BSC 0.31 (0.0122) COMPLIANT TO JEDEC STANDARDS MS-013-AE CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 38. 28-Lead Standard Small Outline Package [SOIC_W] Dimensions shown in millimeters and (inches) 8 ...

Page 18

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E 2.00 MAX 0.05 MIN COPLANARITY 0.10 0.15 0.05 PIN 1 0.15 0.05 COPLANARITY 10.50 10.20 9. 5.60 5.30 8.20 5.00 7.80 7. 1.85 1.75 1.65 0.38 SEATING 0.22 PLANE 0.65 BSC COMPLIANT TO JEDEC STANDARDS MO-150-AH Figure 40. 28-Lead Shrink Small Outline Package [SSOP] (RS-28) Dimensions shown in millimeters 7.90 7.80 7. 4.50 4.40 4.30 6.40 BSC 1 12 PIN 1 0.65 1.20 BSC MAX 0.30 0.20 SEATING 0.19 PLANE 0.09 0.10 COPLANARITY COMPLIANT TO JEDEC STANDARDS MO-153-AD Figure 41. 24-Lead Thin Shrink Small Outline Package [TSSOP] ...

Page 19

... ADM208EARS-REEL −40°C to +85°C 1 ADM208EARSZ −40°C to +85°C ADM208EARSZ-REEL 1 −40°C to +85°C ADM208EARU −40°C to +85°C ADM208EARU-REEL −40°C to +85°C ADM208EARU-REEL7 −40°C to +85°C 1 ADM208EARUZ −40°C to +85°C 1 ADM208EARUZ-REEL −40°C to +85°C ADM211EAR − ...

Page 20

... ADM206E/ADM207E/ADM208E/ADM211E/ADM213E Model Temperature Range ADM213EAR −40°C to +85°C ADM213EAR-REEL −40°C to +85°C 1 ADM213EARZ −40°C to +85°C 1 ADM213EARZ-REEL −40°C to +85°C ADM213EARS −40°C to +85°C ADM213EARS-REEL −40°C to +85°C 1 ADM213EARSZ −40°C to +85°C 1 ADM213EARSZ-REEL −40°C to +85°C ADM213EARU − ...

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