ADM206ARZ-REEL Просмотр технического описания (PDF) - Analog Devices
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ADM206ARZ-REEL Datasheet PDF : 16 Pages
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0.1 μF, 5 V Powered CMOS
RS-232 Drivers/Receivers
ADM206/ADM207/ADM208/ADM211/ADM213
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
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
TYPICAL OPERATING CIRCUIT
5V INPUT
0.1μF +
16V
0.1μF +
16V
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
+ 16V
T1IN
7
T1
2
T1OUT
T2IN
6
T2
TTL/CMOS
INPUTS1
T3IN
20
T3
3
T2OUT
RS-232
1
T3OUT OUTPUTS
T4IN
21
T4
28
T4OUT
R1OUT
8
R1
9
R1IN
R2OUT
5
TTL/CMOS
OUTPUTS
R3OUT
26
R4OUT
22
R2
4
R2IN
R3
27
R3IN
RS-232
INPUTS2
R4
23
R4IN
R5OUT
19
EN
24
R5
18
25
GND ADM211
10
R5IN
SD
NOTES
1INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2INTERNAL 5kΩ PULL-DOWN RESIST OR ON EACH RS-232 INPUT.
Figure 1.
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
ADM206 5 V
ADM207 5 V
ADM208 5 V
ADM211 5 V
ADM213 5 V
Number of RS-
232 Drivers
4
5
4
4
4
Number of
RS-232 Receivers
3
3
4
5
5
External
Capacitors
4
4
4
4
4
Low Power
Shutdown (SD)
Yes
No
No
Yes
Yes (SD)
TTL Three-
State EN
Yes
No
No
Yes
Yes (EN)
Number of Receivers
Active in Shutdown
0
0
0
0
2
Rev. D
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