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ADM208EARS Datasheet(PDF) 6 Page - Analog Devices

Part No. ADM208EARS
Description  EMI/EMC-Compliant, ±15 kV ESDProtected, RS-232 Line Drivers/Receivers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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 6 page
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ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
Rev. E | Page 6 of 20
TOP VIEW
(Not to Scale)
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
ADM208E
C1–
V+
C1+
VCC
GND
T2OUT
T1OUT
R2IN
R2OUT
R1IN
R1OUT
T1IN
C2+
C2–
V–
R4IN
R4OUT
T3OUT
R3IN
R3OUT
T4IN
T2IN
T3IN
T4OUT
Figure 6. ADM208E Pin Configuration
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
0.1µF
6.3V
+
+
0.1µF
5V INPUT
+
0.1µF
10V
0.1µF
10V
+
0.1µF
10V
+
T1
T2
T3
T4
R1
R2
R3
R4
GND
ADM208E
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
TTL/CMOS
INPUTS1
TTL/CMOS
OUTPUTS
RS-232
OUTPUTS
RS-232
INPUTS2
C1+
C1–
C2+
C2–
VCC
V+
V–
1 INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2 INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
20
23
7
16
15
3
9
11
4
17
21
19
22
14
13
6
18
5
10
12
24
1
2
8
Figure 7. ADM208E Typical Operating Circuit
TOP VIEW
(Not to Scale)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
ADM211E
T3OUT
T1OUT
T4OUT
R3IN
T2OUT
R2IN
R3OUT
SHDN
R2OUT
T2IN
R4IN
T1IN
R1OUT
R4OUT
T4IN
R1IN
GND
T3IN
R5OUT
VCC
C1+
R5IN
V–
V+
C1–
C2–
C2+
EN
Figure 8. ADM211E Pin Configuration
0.1µF
10V
0.1µF
10V
0.1µF
10V
TTL/CMOS
INPUTS1
TTL/CMOS
OUTPUTS
RS-232
OUTPUTS
RS-232
INPUTS2
0.1µF
6.3V
+
+
0.1µF
5V INPUT
+
+
+
T1
T2
T3
T4
R1
R2
R3
R4
R5
GND
ADM211E
T1IN
T2IN
T3IN
T4IN
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
T1OUT
T2OUT
T3OUT
T4OUT
R1IN
R2IN
R3IN
R4IN
R5IN
SHDN
C1+
C1–
C2+
C2–
VCC
V+
V–
EN
1 INTERNAL 400kΩ PULL-UP RESISTOR ON EACH TTL/CMOS INPUT.
2 INTERNAL 5kΩ PULL-DOWN RESISTOR ON EACH RS-232 INPUT.
23
25
4
9
18
3
2
27
28
1
17
11
13
22
24
5
8
19
6
7
26
21
20
15
16
12
14
10
+5V TO +10V
VOLTAGE
DOUBLER
+10V TO –10V
VOLTAGE
INVERTER
Figure 9. ADM211E Typical Operating Circuit




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