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MAX1406CAEMAXIMN/a106avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406CPEMAXIM ?N/a100avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406CWEMAXN/a106avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406CWEMAXIM ?N/a750avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406CWEMAXIMN/a920avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406EWEMAXIMN/a99avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
MAX1406EWEMAXN/a64avai15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC


MAX1406CWE ,15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 ICELECTRICAL CHARACTERISTICS(V = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T to ..
MAX1406CWE ,15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 ICELECTRICAL CHARACTERISTICS(V = +4.5V to +5.5V, V = +10.8V to +13.2V, V = -10.8V to -13.2V, T = T to ..
MAX1406CWE ,15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 ICMAX140619-1120; Rev 0; 9/96±15kV ESD-Protected, EMC-Compliant, 230kbps, 3-Tx/3-Rx RS-232 IC________ ..
MAX1406CWE+ ,±15kV ESD-Protected, EMC Compliant, 230kbps, 3 Tx/3 Rx RS-232 ICapplications. It is guaran-teed to run at data rates up to 230kbps, providing com-♦ Flow-Through Pi ..
MAX1406EAE+ ,±15kV ESD-Protected, EMC Compliant, 230kbps, 3 Tx/3 Rx RS-232 ICApplications MAX1406EWE -40°C to +85°C 16 Wide SOMAX1406EAE -40°C to +85°C 16 SSOPTelecommunication ..
MAX1406EWE ,15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 ICapplications. It is guaran-teed to run at data rates up to 230kbps, providing com-' Flow-Through Pi ..
MAX4023EEE+ ,Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed and Settable Gainapplications withMAX4025EUP -40°C to +85°C 20 TSSOPdifferential gain and phase errors of 0.07% and ..
MAX4024ESD+T ,Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed and Settable GainMAX4023–MAX402619-2758; Rev 1; 11/09Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed an ..
MAX4024EUD ,Triple and Quad / 2:1 Video Multiplexer- Amplifiers with Fixed and Settable GainApplicationsSet-Top BoxesSelector Guide and Pin Configurations appear at end of datasheet.In-Car Na ..
MAX4024EUD+ ,Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed and Settable Gainapplications. These♦ Input Common-Mode Range Includes Negativedevices operate from a single +4.5V t ..
MAX4026EUP+T ,Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed and Settable GainELECTRICAL CHARACTERISTICS—Dual Supply(V = +5V, V = -5V, R = ∞, EN = +5V, V = REF = OUT_ = 0V, T = ..
MAX4026EWP+ ,Triple and Quad, 2:1 Video Multiplexer-Amplifiers with Fixed and Settable GainFeaturesThe MAX4023–MAX4026 family of voltage feedback♦ Single +5V or Dual ±5V Operationmultiplexer ..


MAX1406CAE-MAX1406CPE-MAX1406CWE-MAX1406EWE
15kV ESD-Protected / EMC-Compliant / 230kbps / 3-Tx/3-Rx RS-232 IC
_______________General Description
The MAX1406 is an RS-232 IC designed to meet the
stringent electrostatic discharge (ESD) requirements of
the European community. All transmitter outputs and
receiver inputs are protected to ±15kV using IEC1000-4-2
Air-Gap Discharge, ±8kV using IEC 1000-4-2 Contact
Discharge, and ±15kV using the Human Body Model.
The MAX1406 has three RS-232 transmitters and three
RS-232 receivers, and is optimized for operation in
printer, modem, and telecom applications. It is guaran-
teed to run at data rates up to 230kbps, providing com-
patibility with popular software for communicating with
personal computers. Power-supply current is less than
500µA for IDDand ISS,and less than 1mA for ICC.
The MAX1406 is pin and functionally compatible with the
industry-standard MC145406, so existing designs can
instantly become Electromagnetic Compatibility (EMC)
compliant. The MAX1406 is available in DIP and SO pack-
ages, and in a tiny SSOP that reduces board space.
________________________Applications

Telecommunications
Modems
Printers
Instruments
Equipment Meeting IEC1000-4-2
____________________________Features
Enhanced ESD Protection:
±15kV Human Body Model
±8kV IEC1000-4-2, Contact Discharge
±15kV IEC1000-4-2, Air-Gap Discharge
Latchup Free During an ESD Event16-Pin SSOP or SO Packages Guaranteed 230kbps Data RateFlow-Through PinoutPin Compatible with MC145406
MAX1406
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC
__________________Pin Configuration
________________Functional Diagram

19-1120; Rev 0; 9/96
*Dice are specified at TA= +25°C, DC parameters only.
MAX1406
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS

(VCC= +4.5V to +5.5V, VDD= +10.8V to +13.2V, VSS= -10.8V to -13.2V, TA= TMINto TMAX,unless otherwise noted. Typical values
are at TA= +25°C.)
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.
VCC...........................................................................-0.3V to +7V
VDD.........................................................................-0.3V to +14V
VSS..........................................................................+0.3V to -14V
Input Voltages
TIN.........................................................................-0.3V to +6V
RIN....................................................................................±30V
Output Voltages
TOUT..................................................................................±15V
ROUT........................................................-0.3V to (VCC+ 0.3V)
Short-Circuit Duration
TOUT(one at a time)................................................Continuous
ROUT (one at a time)................................................Continuous
Continuous Power Dissipation (TA= +70°C)
DIP (derate 10.53mW/°C above +70°C).......................842mW
Wide SO (derate 20.00mW/°C above +70°C)...................1.6W
SSOP (derate 8.00mW/°C above +70°C).....................640mW
Operating Temperature Ranges
MAX1406C_E.......................................................0°C to +70°C
MAX1406E_E....................................................-40°C to +85°C
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10sec) ............................+300°C
MAX1406
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC
ELECTRICAL CHARACTERISTICS (continued)

(VCC= +4.5V to +5.5V, VDD= +10.8V to +13.2V, VSS= -10.8V to -13.2V, TA= TMINto TMAX,unless otherwise noted. Typical values
are at TA= +25°C.)
TIMING CHARACTERISTICS

(TA= +25°C, unless otherwise noted.)
MAX1406
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC
__________________________________________Typical Operating Characteristics

(VCC= +5.0V, VDD= +12.0V, VSS= -12.0V, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1406 TOC-1
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX1406 TOC-2
LOAD CAPACITANCE (pF)
SUPPLY CURRENT (mA)-15
SLEW RATE
vs. LOAD CAPACITANCE
MAX1406 TOC-4
LOAD CAPACITANCE (pF)
SLEW RATE (V/
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX1406 TOC-3
LOAD CAPACITANCE (pF)
TRANSMITTER OUTPUT VOLTAGE (V)
10002000300040005000
_______________Detailed Description
RS-232 Transmitters

The transmitters are inverting level translators that con-
vert CMOS-logic input levels to an EIA/TIA-232 voltage
between ±5V and ±13.2V, into a load between 3kWand
7kW. The MAX1406 guarantees a 230kbps data rate
with a worst-case load of 3kW and 1000pF, providing
compatibility with PC-to-PC communication software.
When the power is off, the MAX1406 outputs are permit-
ted to be driven up to ±15V. The transmitter inputs do
not have internal pull-up resistors. Connect unused
inputs to GND or VCC.
RS-232 Receivers

The receiver inputs invert and convert the RS-232 sig-
nals to CMOS-logic output levels. The MAX1406 has
hysteresis of 650mV. The receiver output swings
between GND and VCC.
±15kV ESD Protection

As with all Maxim devices, electrostatic discharge
(ESD) protection structures are incorporated on all pins
to protect against ESD encountered during handling
and assembly. The MAX1406 driver outputs and receiv-
er inputs have extra protection against static electricity
found in normal operation. Maxim’s engineers devel-
oped state-of-the-art structures to protect these pins
against ±15kV ESD without damage. After an ESD
event, the MAX1406 continues working without latchup.
ESD protection can be tested in several ways. The
transmitter outputs and the receiver inputs are charac-
terized for protection to the following:
1) ±15kV using the Human Body Model
2) ±8kV using the Contact-Discharge method specified
in IEC1000-4-2 (formerly IEC801-2)
3) ±15kV using the Air-Gap Discharge method speci-
fied in IEC1000-4-2 (formerly IEC801-2)
ESD Test Conditions

ESD performance depends on a number of conditions.
Contact Maxim for a reliability report that documents
test setup, methodology, and results.
MAX1406
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC
______________________________________________________________Pin Description
MAX1406
Human Body Model

Figure 2a shows the Human Body Model, and Figure
2b 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, which is then discharged into the device through a
1.5kWresistor.
IEC1000-4-2

The IEC1000-4-2 standard covers ESD testing and per-
formance of finished equipment; it does not specifically
refer to integrated circuits. The MAX1406 helps you
design equipment that meets Level 4 (the highest level)
of IEC1000-4-2, without additional ESD-protection com-
ponents.
The main difference between tests done using the
Human Body Model and IEC1000-4-2 is higher peak
current in IEC1000-4-2 (Figure 3). Because series resis-
tance is lower in the IEC1000-4-2 ESD test model, the
ESD withstand voltage measured to this standard is
generally lower than that measured using the Human
Body Model. Figure 3b shows the current waveform for
the ±8kV IEC1000-4-2 Level 4 ESD Contact-Discharge
test.
The Air-Gap test involves approaching the device with
a charge probe. The Contact-Discharge method con-
nects the probe to the device before the probe is ener-
gized.
Machine Model

The Machine Model for ESD testing uses a 200pF stor-
age capacitor and zero-discharge resistance. It mimics
the stress caused by handling during manufacturing
and assembly. Of course, all pins (not just RS-232
inputs and outputs) require this protection during man-
ufacturing. Therefore, the Machine Model is less rele-
vant to the I/O ports than are the Human Body Model
and IEC1000-4-2.
±15kV ESD-Protected, EMC-Compliant,
230kbps, 3-Tx/3-Rx RS-232 IC

Figure 2. Human Body ESD Test Model and ESD-Generator
Current Waveform
Figure 3. IEC1000-4-2 Test Model and ESD-Generator Current
Waveform
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