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ADM208EARS Datasheet(PDF) 3 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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ADM206E/ADM207E/ADM208E/ADM211E/ADM213E
Rev. E | Page 3 of 20
SPECIFICATIONS
VCC = 5.0 V ± 10%, C1 to C4 = 0.1 μF. All specifications TMIN to TMAX, unless otherwise noted.
Table 2.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DC CHARACTERISTICS
Operating Voltage Range
4.5
5.0
5.5
V
VCC Power Supply Current
3.5
13
mA
No load
SHUTDOWN SUPPLY CURRENT
0.2
10
μA
LOGIC
Input Pull-Up Current
10
25
μA
TIN = GND
Input Logic Threshold Low, VINL
0.8
V
TIN, EN, EN, SHDN, SHDN
Input Logic Threshold High, VINH
2.0
V
TIN
Input Logic Threshold High, VINH
2.0
V
EN, EN, SHDN, SHDN
TTL/CMOS Output Voltage Low, VOL
0.4
V
IOUT = 1.6 mA
TTL/CMOS Output Voltage High, VOH
3.5
V
IOUT = −40 μA
TTL/CMOS Output Leakage Current
+0.05
±10
μA
EN = VCC, EN = GND, 0 V ≤ ROUT ≤ VCC
RS-232 RECEIVER
Input Voltage Range1
−30
+30
V
Input Threshold Low
0.8
1.3
V
Input Threshold High
2.0
2.4
V
Input Hysteresis
0.65
V
Input Resistance
3
5
7
TA = 0°C to 85°C
RS-232 TRANSMITTER
Output Voltage Swing
±5.0
±9.0
V
All transmitter outputs loaded with 3 kΩ to ground
Output Resistance
300
Ω
VCC = 0 V, VOUT = ±2 V
Output Short-Circuit Current
±6
±20
±60
mA
TIMING CHARACTERISTICS
Maximum Data Rate
230
kbps
RL = 3 kΩ to 7 kΩ, CL = 50 pF to 2500 pF
Receiver Propagation Delay, TPHL, TPLH
0.4
2
μs
CL = 150 pF
Receiver Output Enable Time, tER
120
ns
Receiver Output Disable Time, tDR
120
ns
Transmitter Propagation Delay, TPHL, TPLH
1
μs
RL = 3 kΩ, CL = 2500 pF
Transition Region Slew Rate
8
V/μs
RL = 3 kΩ, CL = 50 pF to 2500 pF, measured from
+3 V to −3 V or −3 V to +3 V
EM IMMUNITY
ESD Protection (I/O Pins)
±15
kV
Human body model
±15
kV
IEC 1000-4-2 air-gap discharge
±8
kV
IEC 1000-4-2 contact discharge
Radiated Immunity
10
V/m
IEC 1000-4-3
1 Guaranteed by design.
Table 3. ADM211E Truth Table
SHDN
EN
Status
TOUT 1:4
ROUT 1:5
0
0
Normal operation
Enabled
Enabled
0
1
Normal operation
Enabled
Disabled
1
X1
Shutdown
Disabled
Disabled
1 X = don’t care.
Table 4. ADM213E Truth Table
SHDN
EN
Status
TOUT 1:4
ROUT 1:3
ROUT 4:5
0
0
Shutdown
Disabled
Disabled
Disabled
0
1
Shutdown
Disabled
Disabled
Enabled
1
0
Normal operation
Enabled
Disabled
Disabled
1
1
Normal operation
Enabled
Enabled
Enabled




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