ADM3202/ADM3222/ADM1385
SPECIFICATIONS
V
CC
= 3.3 V ± 0.3 V, C1 to C4 = 0.1 μF. All specifications T
MIN
to T
MAX
, unless otherwise noted.
Table 1.
Parameter
DC CHARACTERISTICS
Operating Voltage Range
V
CC
Power Supply Current
Shutdown Supply Current
LOGIC
Input Logic Threshold Low, V
INL
Input Logic Threshold High, V
INH
CMOS Output Voltage Low, V
OL
CMOS Output Voltage High, V
OH
Logic Pull-Up Current
Output Leakage Current
RS-232 RECEIVER
EIA-232 Input Voltage Range
EIA-232 Input Threshold Low
EIA-232 Input Threshold High
EIA-232 Input Hysteresis
EIA-232 Input Resistance
RS-232 TRANSMITTER
Output Voltage Swing (RS-232)
Output Voltage Swing (RS-562)
Transmitter Output Resistance
RS-232 Output Short-Circuit Current
Output Leakage Current
TIMING CHARACTERISTICS
Maximum Data Rate
Receiver Propagation Delay
TPHL
TPLH
Transmitter Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition Region Slew Rate
1
Min
3.0
Typ
3.3
1.3
8
0.01
Max
5.5
3
12
0.5
0.8
Unit
V
mA
mA
μA
V
V
V
V
μA
μA
V
V
V
V
kΩ
V
V
Ω
mA
μA
kbps
Test Conditions/Comments
No load
R
L
= 3 kΩ to GND
2.0
0.4
V
CC
− 0.6
5
10
±10
+30
1.2
1.6
0.4
5
±5.2
2.4
7
T
IN
T
IN
I
OUT
= 1.6 mA
I
OUT
= −1 mA
T
IN
= GND to V
CC 1
Receivers disabled
−30
0.6
3
±5.0
±3.7
300
V
CC
= 3.3 V, all transmitter outputs loaded with 3 kΩ to ground
V
CC
= 3.0 V
V
CC
= 0 V, V
OUT
= ±2 V
SD = low, V
OUT
= 12 V
V
CC
= 3.3 V, R
L
= 3 kΩ to 7 kΩ, C
L
= 50 pF to 1000 pF, one
Tx switching
±15
±25
460
5.5
0.4
0.4
0.3
200
200
30
300
10
1
1
1.2
30
μs
μs
μs
ns
ns
ns
ns
V/μs
R
L
= 3 kΩ, C
L
= 1000 pF
Measured from +3 V to −3 V or −3 V to +3 V, V
CC
= +3.3 V;
R
L
= 3 kΩ, C
L
= 1000 pF, T
A
= 25°C
ADM1385: Input leakage current typically −10 μA when T
IN
= GND.
Rev. E | Page 3 of 16
AD [ ANALOG DEVICES ]
