Datasheet

ADM202E/ADM1181A
Rev. C | Page 3 of 16
SPECIFICATIONS
V
CC
= 5.0 V ± 10%, C1 to C4 = 0.1 µF. All specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Test Conditions/Comments
DC CHARACTERISTICS
Operating Voltage Range 4.5 5.0 5.5 V
V
CC
Power Supply Current 2.5 6.0 mA No load
13 18 mA R
L
= 3 kΩ to GND
LOGIC
Input Logic Threshold Low, V
INL
0.8 V T
IN
Input Logic Threshold High, V
INH
2.4 V T
IN
CMOS Output Voltage Low, V
OL
0.4 V I
OUT
= 3.2 mA
CMOS Output Voltage High, V
OH
3.5 V I
OUT
= −1 mA
Logic Pull-Up Current +12 ±25 µA T
IN
= 0 V
RS-232 RECEIVER
EIA-232 Input Voltage Range −30 +30 V
EIA-232 Input Threshold Low 0.4 1.2 V
EIA-232 Input Threshold High 1.6 2.4 V
EIA-232 Input Hysteresis 0.65 V
EIA-232 Input Resistance 3 5 7 kΩ T
A
= 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
Transmitter Output Resistance 300 Ω V
CC
= 0 V, V
OUT
= ±2 V
RS-232 Output Short-Circuit Current ±10 ±60 mA
TIMING CHARACTERISTICS
Maximum Data Rate 230 kbps R
L
= 3 kΩ to 7 kΩ, C
L
= 50 pF to 1000 pF
Receiver Propagation Delay
T
PHL
0.1 1 µs
T
PLH
0.3 1 µs
Transmitter Propagation Delay 1.0 1.5 µs R
L
= 3 kΩ, C
L
= 1000 pF
Transition Region Slew Rate 3 8 30 V/µs R
L
= 3 kΩ, C
L
= 1000 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 IEC1000-4-2 air discharge
±8 kV kV IEC1000-4-2 contact discharge
EFT Protection (I/O Pins) ±2 kV IEC1000-4-4
EMI Immunity 10 V/m IEC1000-4-3