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ADM211AR Datasheet(PDF) 1 Page - Analog Devices

Part No. ADM211AR
Description  0.1 μF, 5 V Powered CMOS RS-232 Drivers/Receivers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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0.1 μF, 5 V Powered CMOS
RS-232 Drivers/Receivers
ADM206/ADM207/ADM208/ADM211/ADM213
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.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
©2011 Analog Devices, Inc. All rights reserved.
FEATURES
0.1 μF to 10 μF capacitors
120 kB/s data rate
Two receivers active in shutdown (ADM213)
On-board dc-to-dc converters
±9 V output swing with 5 V supply
Low power (15 mW)
Low power shutdown ≤ 5 μW
±30 V receiver input levels
Latch-up free
Pin compatible to MAX206-211/213
APPLICATIONS
Computers
Peripherals
Modems
Printers
Instruments
TYPICAL OPERATING CIRCUIT
0.1
μF
6.3V
+
+
0.1
μF
5V INPUT
+
0.1
μF
16V
0.1
μF
16V
+
0.1
μF
16V
+
T1
T2
T3
T4
R1
R2
R3
R4
R5
GND
ADM211
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
SD
TTL/CMOS
INPUTS1
TTL/CMOS
OUTPUTS
RS-232
OUTPUTS
RS-232
INPUTS2
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
NOTES
1INTERNAL 400k
Ω PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5k
Ω PULL-DOWN RESIST OR ON EACH RS-232 INPUT.
C1+
C1–
C2+
C2–
VCC
V+
V–
EN
12
14
15
16
11
13
17
2
3
1
28
9
4
27
23
18
25
7
6
20
21
8
5
26
22
19
24
10
Figure 1.
GENERAL DESCRIPTION
The ADM2xx family of line drivers/receivers is intended for all
EIA-232-E and V.28 communications interfaces, especially in
applications where ±12 V is not available. The ADM206,
ADM211, and ADM213 feature a low power shutdown mode
that reduces power dissipation to less than 5 μW, making them
ideally suited for battery-powered equipment. The ADM213 has
an active low shutdown and an active high receiver-enable
control. Two receivers of the ADM213 remain active during
shutdown. This feature is useful for ring indicator monitoring.
All members of the ADM2xx family include two internal charge
pump voltage converters that allow operation from a single 5 V
supply. These parts convert the 5 V input power to the ±10 V
required for RS-232 output levels.
Table 1. Selection Table
Part
Number
Power Supply
Voltage
Number of RS-
232 Drivers
Number of
RS-232 Receivers
External
Capacitors
Low Power
Shutdown (SD)
TTL Three-
State EN
Number of Receivers
Active in Shutdown
ADM206
5 V
4
3
4
Yes
Yes
0
ADM207
5 V
5
3
4
No
No
0
ADM208
5 V
4
4
4
No
No
0
ADM211
5 V
4
5
4
Yes
Yes
0
ADM213
5 V
4
5
4
Yes (SD)
Yes (EN)
2




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