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MAX4545EAPMAXN/a117avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4545EWPMaxim N/a19avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4545CAPMAXIMN/a17avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4545CAPMAXIN/a1910avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4545CWPMAXIMN/a20avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4545EAPMAXIMN/a10avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4546CEEMAXIM ?N/a26avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4546CSEMAXIMN/a500avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4546ESEMAXN/a8275avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4547CSEMAXIMN/a27avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches
MAX4547ESEMaxim N/a20avaiQuad/Dual, Low-Voltage, Bidirectional RF/Video Switches


MAX4546ESE+ ,Quad/Dual, Low-Voltage, Bidirectional RF Video SwitchesELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, V = 0.8V, V = 2. ..
MAX4547CEE+ ,Quad/Dual, Low-Voltage, Bidirectional RF Video SwitchesMAX4545/MAX4546/MAX454719-1232; Rev 0; 6/97Quad/Dual, Low -Voltage,Bidirectional RF/Video Sw itches ..
MAX4547CSE ,Quad/Dual, Low-Voltage, Bidirectional RF/Video SwitchesFeaturesThe MAX4545/MAX4546/MAX4547 are low-voltage ' Low 50Ω Insertion Loss: -1dB at 100MHzT-switc ..
MAX4547EEE+ ,Quad/Dual, Low-Voltage, Bidirectional RF Video SwitchesFeaturesThe MAX4545/MAX4546/MAX4547 are low-voltage ♦ Low 50Ω Insertion Loss: -1dB at 100MHzT-switc ..
MAX4547EEE+ ,Quad/Dual, Low-Voltage, Bidirectional RF Video SwitchesELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, V = 0.8V, V = 2. ..
MAX4547ESE ,Quad/Dual, Low-Voltage, Bidirectional RF/Video SwitchesMAX4545/MAX4546/MAX454719-1232; Rev 0; 6/97Quad/Dual, Low-Voltage,Bidirectional RF/Video Switches__ ..
MAX8640YELT12+T ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersApplications that forward bias these diodes should not exceed the IC’s packagepower-dissipation lim ..
MAX8640YELT18+ ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersApplicationsMAX8640YEXT15+T 6 SC70 ADDMicroprocessor/DSP Core PowerMAX8640YEXT16+T 6 SC70 ADBMAX864 ..
MAX8640YEXT12+T ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersApplications that forward bias these diodes should not exceed the IC’s packagepower-dissipation lim ..
MAX8640YEXT13+T ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersEVALUATION KIT AVAILABLE MAX8640Y/MAX8640ZTiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC Conver ..
MAX8640YEXT15+T ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersFeatures♦ Tiny SC70 and µDFN PackagesThe MAX8640Y/MAX8640Z step-down converters areoptimized for
MAX8640YEXT16+T ,Tiny 500mA, 4MHz/2MHz Synchronous Step-Down DC-DC ConvertersApplicationsMAX8640YEXT15+T 6 SC70 ADDMicroprocessor/DSP Core PowerMAX8640YEXT16+T 6 SC70 ADBMAX864 ..


MAX4545CAP-MAX4545CWP-MAX4545EAP-MAX4545EWP-MAX4546CEE-MAX4546CSE-MAX4546ESE-MAX4547CSE-MAX4547ESE
Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches
_______________General Description
The MAX4545/MAX4546/MAX4547 are low-voltage
T-switches designed for switching RF and video signals
from DC to 300MHz in 50Ωand 75Ωsystems. The
MAX4545 contains four normally open single-pole/single-
throw (SPST) switches. The MAX4546 contains two dual
SPST switches (one normally open, one normally closed.)
The MAX4547 contains two single-pole/double-throw
(SPDT) switches.
Each switch is constructed in a “T” configuration, ensuring
excellent high-frequency off isolation and crosstalk of
-80dB at 10MHz. They can handle Rail-to-Rail®analog sig-
nals in either direction. On-resistance (20Ωmax) is
matched between switches to 1Ωmax and is flat (0.5Ω
max) over the specified signal range, using ±5V supplies.
The off leakage current is less than 5nA at +25°C and
50nA at +85°C.
These CMOS switches can operate with dual power sup-
plies ranging from ±2.7V to ±6V or a single supply
between +2.7V and +12V. All digital inputs have 0.8V/2.4V
logic thresholds, ensuring both TTL- and CMOS-logic com-
patibility when using ±5V or a single +5V supply.
________________________Applications

RF Switching
Video Signal Routing
High-Speed Data Acquisition
Test Equipment
ATE Equipment
Networking
____________________________Features
Low 50ΩInsertion Loss: -1dB at 100MHzHigh 50ΩOff Isolation: -80dB at 10MHzLow 50ΩCrosstalk: -80dB at 10MHzDC to 300MHz -3dB Signal Bandwidth20ΩSignal Paths with ±5V Supplies1ΩSignal-Path Matching with ±5V Supplies0.5ΩSignal-Path Flatness with ±5V Supplies±2.7V to ±6V Dual Supplies
+2.7V to +12V Single Supply
Low Power Consumption: <1µW Rail-to-Rail Bidirectional Signal HandlingPin Compatible with Industry-Standard DG540,
DG542, DG643
>2kV ESD Protection per Method 3015.7TTL/CMOS-Compatible Inputs
with Single +5V or ±5V
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
_____________________Pin Configurations/Functional Diagrams/Truth Tables

19-1232; Rev 0; 6/97
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual Supplies

(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINL= 0.8V, VINH= 2.4V, VGND_= 0V, 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.
(Voltages Referenced to GND)...........................................................................-0.3V, +13.0V
V-............................................................................-13.0V, +0.3V
V+ to V-...................................................................-0.3V, +13.0V
All Other Pins (Note 1)..........................(V- - 0.3V) to (V+ + 0.3V)
Continuous Current into Any Terminal..............................±25mA
Peak Current into Any Terminal
(pulsed at 1ms, 10% duty cycle)..................................±50mA
ESD per Method 3015.7..................................................>2000V
Continuous Power Dissipation (TA= +70°C) (Note 2)
16-Pin Plastic DIP
(derate 10.53mW/°C above +70°C)..........................842mW
16-Pin Narrow SO
(derate 8.70mW/°C above +70°C)............................696mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)..........667mW
20-Pin Plastic DIP (derate 8.0mW/°C above +70°C)...640mW
20-Pin Wide SO (derate 10.00mW/°C above +70°C)..800mW
20-Pin SSOP (derate 8.0mW/°C above +70°C)..........640mW
Operating Temperature Ranges
MAX454_C_ E.....................................................0°C to +70°C
MAX454_E_ E..................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
Note 1:
Voltages on all other pins exceeding V+ or V- are clamped by internal diodes. Limit forward diode current to maximum cur-
rent rating.
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)

(V+ = +4.5V to +5.5V, V- = -4.5V to -5.5V, VINL= 0.8V, VINH= 2.4V, VGND_= 0V, TA= TMINto TMAX, unless otherwise noted. Typical
values are at TA= +25°C.)
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
ELECTRICAL CHARACTERISTICS—Single +5V Supply

(V+ = +4.5V to +5.5V, V- = 0V, VINL= 0.8V, VINH= 2.4V, VGND_= 0V, TA= TMINto TMAX, unless otherwise noted. Typical values are
at TA= +25°C.)
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
ELECTRICAL CHARACTERISTICS—Single +3V Supply

(V+ = +2.7V to +3.6V, V- = 0V, VINL= 0.8V, VINH= 2.4V, VGND_ = 0V, TA= TMINto TMAX, unless otherwise noted. Typical values are
at TA= +25°C.)
Note 2:
The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.
Note 3:
Guaranteed by design.
Note 4:
ΔRON= ΔRON(MAX)- ΔRON(MIN).
Note 5:
Resistance flatness is defined as the difference between the maximum and the minimum value of on-resistance as mea-
sured over the specified analog signal range.
Note 6:
Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 7:
Off isolation = 20log10[VCOM/ (VNCor VNO)], VCOM= output, VNCor VNO= input to off switch.
Note 8:
Between any two switches.
Note 9:
Leakage testing for single-supply operation is guaranteed by testing with dual supplies.
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
__________________________________________Typical Operating Characteristics

(V+ = +5V, V- = -5V, TA= +25°C, GND = 0V, packages are surface mount, unless otherwise noted.)
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
____________________________Typical Operating Characteristics (continued)

(V+ = +5V, V- = -5V, TA= +25°C, GND = 0V, packages are surface mount, unless otherwise noted.)
_______________Theory of Operation
Logic-Level Translators

The MAX4545/MAX4546/MAX4547 are constructed as
high-frequency “T” switches, as shown in Figure 1. The
logic-level input, IN_, is translated by amplifier A1 into a
V+ to V- logic signal that drives amplifier A2. (Amplifier
A2 is an inverter for normally closed switches.)
Amplifier A2 drives the gates of N-channel MOSFETs
N1 and N2 from V+ to V-, turning them fully on or off.
The same signal drives inverter A3 (which drives the
P-channel MOSFETs P1 and P2) from V+ to V-, turning
them fully on or off, and drives the N-channel MOSFET
N3 off and on.
The logic-level threshold is determined by V+ and
GND_. The voltage on GND_ is usually at ground
potential, but it may be set to any voltage between
(V+ - 2V) and V-. When the voltage between V+ and
GND_ is less than 2V, the level translators become very
slow and unreliable. Since individual switches in each
package have individual GND_ pins, they may be set to
different voltages. Normally, however, they should all
be connected to the ground plane.
Switch On Condition

When the switch is on, MOSFETs N1, N2, P1, and P2
are on and MOSFET N3 is off. The signal path is COM_
to NO_, and because both N-channel and P-channel
MOSFETs act as pure resistances, it is symmetrical
(i.e., signals may pass in either direction). The off
MOSFET, N3, has no DC conduction, but has a small
amount of capacitance to GND_. The four on
MOSFETs also have capacitance to ground that,
together with the series resistance, forms a lowpass fil-
ter. All of these capacitances are distributed evenly
along the series resistance, so they act as a transmis-
sion line rather than a simple R-C filter. This helps to
explain the exceptional 300MHz bandwidth when the
switches are on.
MAX4545/MAX4546/MAX4547
Quad/Dual, Low-Voltage,
Bidirectional RF/Video Switches
______________________________________________________________Pin Description
All pins have ESD diodes to V- and V+.NO_ (or NC_) and COM_ pins are identical and interchangeable. Either may be considered as an input or output; signals pass
equally well in either direction.
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