Datasheet

Detailed Description
The MAX3180E–MAX3183E are EIA/TIA-232 and V.28/
V.24 communications receivers that convert RS-232
signals to CMOS logic levels. They operate on a +3V to
+5.5V supply, have 1.5Mbps data rate capability, and
feature enhanced electrostatic discharge (ESD) protec-
tion (see ESD Protection ). All of these devices achieve
a typical supply current of 0.5µA. The MAX3180E/
MAX3182E have a receiver enable control (EN). The
MAX3181E/MAX3183E contain a signal invalid output
(INVALID). The MAX3180E/MAX3181E invert the ROUT
signal relative to RIN (standard RS-232). The
MAX3182E/MAX3183E outputs are not inverted. The
devices come in tiny SOT23-5 packages.
MAX3180E–MAX3183E
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
4 _______________________________________________________________________________________
25
35
30
45
40
55
50
60
3.0 3.5 4.0 4.5 5.0 5.5
RIN TO INVALID LOW vs. V
CC
MAX3180E-03
V
CC
(V)
t
INVL
(µs)
50% 50%
50%
0
RIN
5V
ROUT
50%
t
PLH
t
PHL
V
OH
V
OL
Typical Operating Characteristics (continued)
(V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
5V
0
10V
0
-10V
RIN
ROUT
ENABLE
5V
0
500ns/div
MAX3180E
ENABLE ASSERTION TO ROUT RESPONSE
MAX3180E-04
V
CC
= 5.0V
R
L
= 50kΩ
C
L
= 100pF
1
EN
Receiver Output Enable
Pin Description
NAME
EN
MAX3180E
FUNCTION
MAX3182E
PIN
– Output of the Valid Input Detector
–
2 GND GroundGND
3
ROUT Inverting Receiver Output–
4 RIN Receiver InputRIN
5 V
CC
Supply VoltageV
CC
Figure 1. Receiver Propagation-Delay Timing
– Noninverting Receiver OutputROUT
MAX3181E MAX3183E
–
INVALID
GND
ROUT
–
RIN
V
CC
–
INVALID
GND
–
ROUT
RIN
V
CC