Datasheet

OBSOLETE
LMS202
www.ti.com SNLS166E –DECEMBER 2002–REVISED APRIL 2013
Electrical Characteristics
Over recommended operating supply and temperature ranges unless otherwise specified
C1 = C2 = C3 = C4 = Cbp = 0.1μF
Symbol Parameter Conditions Min
(1)
Typ
(2)
Max
(1)
Units
DC Characteristics
I
S
Supply Current No Load, T
A
= 25°C 1 7 mA
Logic
I
INPUT
Input Leakage Current T
IN
= 0V to V
S
±10 μA
V
THL
Input Logic Theshold Low T
IN
0.8 V
V
THH
Input Logic Theshold High T
IN
2.0 V
V
OL
TTL/CMOS Output Voltage Low R
OUT
, I
OUT
= 3.2mA 0.4 V
V
OH
TTL/CMOS Output Voltage High R
OUT
, I
OUT
= −1.0mA 3.5 V
S
−0.1 V
RS-232 Receiver Inputs
V
RI
Receiver Input Voltage Range −30 +30 V
V
RTHL
Receiver Input Theshold Low V
S
= 5V, T
A
= 25°C 0.8 1.4 V
V
RTHH
Receiver Input Theshold High V
S
= 5V, T
A
= 25°C 2 2.4 V
V
HYST
Receiver Input Hysteresis V
S
= 5V 0.2 0.6 1.0 V
R
I
Receiver Input Resistance V
S
= 5V, T
A
= 25°C 3 5 7 kΩ
RS-232 Transmitter Outputs
V
O
Transmitter Output Voltage Swing All transmitters loaded with 3kΩ to GND ±5 ±8 V
R
O
Output Resistance V
S
= V+ = V− = 0V, 300 Ω
V
O
= ± 2V
I
OS
Output Short Circuit Current ±11 ±60 mA
Timing Characteristics
DR Maximum Data Rate C
L
= 50pF to 1000pF, 230 kbps
R
L
= 3kΩ to 7kΩ
T
RPLH
Receiver Propagation Delay C
L
= 150pF 0.08 1 μs
T
RPHL
T
DPLH
Transmitter Propagation Delay R
L
= 3kΩ, C
L
= 2500pF 2.4 μs
T
DPHL
All transmitters loaded
V
SLEW
Transition Region Slew Rate T
A
= 25°C, V
S
= 5V 3 6 30 V/μs
C
L
= 50pF to 1000pF, R
L
= 3kΩ to 7kΩ
Measured from +3V to −3V or vice versa
(1) All limits are ensured by testing or statistical analysis
(2) Typical Values represent the most likely parametric norm.
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