MAX3181EUK ,±15kV ESD-Protected, 0.5µA, +3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5Applications Ordering InformationDiagnostic PortsPIN- TOPPART TEMP. RANGEPACKAGE MARKTelecommunicat ..
MAX3183EUK ,±15kV ESD-Protected, 0.5µA, +3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5ELECTRICAL CHARACTERISTICS(V = +3.0V to +5.5V, T = T to T , unless otherwise noted. Typical values ..
MAX3185CAP ,【15kV ESD-Protected, EMC-Compliant, 230kbps RS-232 Serial Port for Motherboards/Desktop PCsMAX318519-1076; Rev 0; 9/96±15kV ESD-Protected, EMC-Compliant, 230kbpsRS-232 Serial Port for Mother ..
MAX3185CAP+ ,±15kV ESD-Protected, EMC Compliant, 230kbps RS-232 Serial Port for Motherboards/Desktop PCsApplicationsMAX3185CAP 0°C to +70°C 20 SSOPDesktop PCMAX3185EWP -40°C to +85°C 20 SOMAX3185EAP -40° ..
MAX3185CAP+T ,±15kV ESD-Protected, EMC Compliant, 230kbps RS-232 Serial Port for Motherboards/Desktop PCsFeaturesThe MAX3185 is a complete DTE RS-232 serial port♦ Enhanced ESD Protection:designed to meet ..
MAX3185CWP ,【15kV ESD-Protected, EMC-Compliant, 230kbps RS-232 Serial Port for Motherboards/Desktop PCsELECTRICAL CHARACTERISTICS(V = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T to ..
MAX6409BS35-T ,Voltage Detectors in 4-Bump (2 X 2) Chip-Scale Package
MAX640CSA ,5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX640CSA ,5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX640CSA+ ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersMAX639/MAX640/MAX65319-4505; Rev 3; 8/975V/3.3V/3V/Adjustable, High-Efficiency, Low I , Step-Down D ..
MAX640CSA+ ,5V/3.3V/3V Adjustable, High-Efficiency, Low-IQ, Step-Down DC-DC ConvertersGeneral Description ________
MAX640ESA ,5V/3.3V/3V/Adjustable, High-Efficiency, Low IQ, Step-Down DC-DC Converters
MAX3180EUK-MAX3180EUK+T-MAX3181EUK-MAX3183EUK
±15kV ESD-Protected, 0.5µA, +3V to +5.5V, 1.5Mbps RS-232 Receivers in SOT23-5
General DescriptionThe MAX3180E–MAX3183E single RS-232 receivers in
a SOT23-5 package are designed for space- and cost-
constrained applications requiring minimal RS-232
communications. The receiver inputs are protected to
±15kV using IEC 1000-4-2 Air-Gap Discharge, to ±8kV
using IEC 1000-4-2 Contact Discharge, and to ±15kV
per the Human Body Model, ensuring compliance with
international standards.
The devices minimize power and heat dissipation by
consuming only 0.5µA supply current from a +3.0V to
+5.5V supply, and they guarantee true RS-232 perfor-
mance up to a 1.5Mbps data rate. The MAX3180E/
MAX3182E feature a three-state TTL/CMOS receiver
output that is controlled by an ENlogic input. The
MAX3181E/MAX3183E feature an INVALIDoutput that
indicates valid RS-232 signals at the receiver input for
applications requiring automatic system wake-up. The
MAX3182E/MAX3183E have a noninverting output,
while the MAX3180E/MAX3181E have a standard
inverting output.
ApplicationsDiagnostic Ports
Telecommunications
Networking Equipment
Set-Top Boxes
Digital Cameras
Hand-Held Equipment
FeaturesTiny SOT23-5 PackageESD-Protected RS-232 Input
±15kV—Human Body Model
±8kV—IEC 1000-4-2, Contact Discharge
±15kV—IEC 1000-4-2, Air-Gap Discharge0.5µA Supply Current1.5Mbps Guaranteed Data RateMeets EIA/TIA-232 and V.28/V.24 Specifications
Down to VCC= +3.0VINVALID
Output Indicates Valid RS-232 Signal at
Receiver Input (MAX3181E/MAX3183E)Three-State TTL/CMOS Receiver Output
(MAX3180E/MAX3182E)Noninverting RS-232 Output
(MAX3182E/MAX3183E)
MAX3180E–MAX3183E
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-519-1479; Rev 1; 7/99
Pin Configurations/Functional Diagrams appear at end of
data sheet.
Selector Guide
Ordering Information
MAX3180E–MAX3183E
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(VCC= +3.0V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, TA= +25°C.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCCto GND..............................................................-0.3V to +6V
RIN to GND..........................................................................±25VEN, ROUT, INVALIDto GND......................-0.3V to (VCC+ 0.3V)
Continuous Power Dissipation (TA= +70°C)
SOT23-5 (derate 7.1mW/°C above +70°C)...................571mW
Operating Temperature Range...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
MAX3180E–MAX3183E
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5
ELECTRICAL CHARACTERISTICS (continued)(VCC= +3.0V to +5.5V, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V, TA= +25°C.) (Note 1)
Typical Operating Characteristics(VCC= +5V, TA= +25°C, unless otherwise noted.)
Note 1:Specifications are 100% tested at TA= +25°C. Limits over temperature are guaranteed by design.
Detailed DescriptionThe MAX3180E–MAX3183E are EIA/TIA-232 and V.28/
V.24communications 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 SOT23-5ypical Operating Characteristics (continued)(VCC= +5V, TA= +25°C, unless otherwise noted.)
Pin Description
Signal Invalid DetectorIf no valid signal levels appear on RIN for 30µs (typ),INVALIDgoes low. This event typically occurs if the
RS-232 cable is disconnected, or if the connected
peripheral transmitter is turned off. INVALIDgoes high
when a valid level is applied to the RS-232 receiver
input. Figure 2 shows the input levels and timing dia-
gram for INVALIDoperation.
Enable InputThe MAX3180E/MAX3182E feature an enable input
(EN). Drive ENhigh to force ROUT into a high-imped-
ance state. In this state, the devices ignore incoming
RS-232 signals. Pull ENlow for normal operation.
ESD ProtectionAs with all Maxim devices, ESD protection structures
are incorporated on all pins to protect against ESD
encountered during handling and assembly. The
receiver inputs of the MAX3180E–MAX3183Ehave extra
protection against static electricity. Maxim’s engineers
have developed state-of-the-art structures enabling
these pins to withstand ESD up to ±15kV without dam-
age or latchup. The receiver inputs of the MAX3180E–
MAX3183Eare characterized for protection to the fol-
lowing limits:±15kV using the Human Body Model±8kV using the Contact Discharge method specified
in IEC 1000-4-2±15kV using the Air-Gap Discharge method speci-
fied in IEC 1000-4-2
Human Body ModelFigure 3 shows the Human Body Model, and Figure 4
shows the current waveform it generates when dis-
charged into a low impedance. This model consists of
a 100pF capacitor charged to the ESD voltage of inter-
est, and then discharged into the test device through a
1.5kΩresistor.
MAX3180E–MAX3183E
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5Figure 2. Input Levels and INVALIDTiming
MAX3180E–MAX3183E
IEC 1000-4-2The IEC 1000-4-2 standard covers ESD testing and
performance of finished equipment; it does not specifi-
cally refer to ICs. The MAX3180E–MAX3183Eenable the
design of equipment that meets the highest level (Level
4) of IEC 1000-4-2 without the need for additional ESD-
protection components.
The major difference between tests done using the
Human Body Model and IEC 1000-4-2 is higher peak
current in IEC 1000-4-2. Because series resistance is
lower in the IEC 1000-4-2 model, the ESD withstand
voltage measured to this standard is generally lower
than that measured using the Human Body. Figure 5
shows the IEC 1000-4-2 model, and Figure 6 shows the
current waveform for the ±8kV IEC 1000-4-2 Level 4
ESD Contact Discharge test.
The Air-Gap test involves approaching the device with
a charged probe. The Contact Discharge method con-
nects the probe to the device before the probe is ener-
gized.
Power-Supply DecouplingIn most circumstances, a 0.1µF VCCbypass capacitor
is adequate. Connect the bypass capacitor as close to
the IC as possible.
±15kV ESD-Protected, 0.5µA, +3V to +5.5V,
1.5Mbps RS-232 Receivers in SOT23-5Figure 5. IEC 1000-4-2 ESD Test Model
Figure 6. IEC 1000-4-2 ESD Generator Current Waveform
