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Part: MAX4545C
Category:
Communication
-> Network
-> Switches
-> Switches/Multiplexers
Description: Quad/Dual, Low-Voltage, Bidirectional RF Video Switches
Company: Maxim Integrated Products
Datasheet: Download MAX4545C datasheet File size : 309 kB
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Datasheet text preview:
19-1232; Rev 0; 6/97
Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches
_______________General Description
T h e MAX4545/MAX4546/MAX4547 are low-voltage T-switches designed for switching RF and video signals f r o m DC to 300MHz in 50 a n d 75 s y s t e m s . The MAX4545 contains four normally open single-pole/singlethrow (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 sign a l s in either direction. On-resistance (20 m a x ) is matched between switches to 1 max and is flat (0.5 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 supp l i e s 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 compatibility when using ±5V or a single +5V supply.
____________________________Features
o Low 50 Insertion Loss: -1dB at 100MHz o High 50 Off Isolation: -80dB at 10MHz o Low 50 Crosstalk: -80dB at 10MHz o DC to 300MHz -3dB Signal Bandwidth o 20 Signal Paths with ±5V Supplies o 1 Signal-Path Matching with ±5V Supplies o 0.5 Signal-Path Flatness with ±5V Supplies o ±2.7V to ±6V Dual Supplies +2.7V to +12V Single Supply o Low Power Consumption: 2kV ESD Protection per Method 3015.7 o TTL/CMOS-Compatible Inputs with Single +5V or ±5V
MAX4545/MAX4546/MAX4547
________________________Applications
RF Switching Video Signal Routing High-Speed Data Acquisition Test Equipment ATE Equipment Networking
TOP VIEW
IN1 1 COM1 2 GND1 3 N01 4 V- 5 GND5 6 N04 7 GND4 8 COM4 9 IN4 10 20 IN2 19 COM2 18 GND2 17 NO2 16 V+ IN1 1 COM1 2 GND1 3 N01 4 V- 5 NC4 6 GND4 7 COM4 8
______________Ordering Information
PART MAX4545CPP MAX4545CWP TEMP. RANGE 0°C to +70°C 0°C to +70°C PIN-PACKAGE 20 Plastic DIP 20 Wide SO
Ordering Information continued at end of data sheet.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
MAX4546 MAX4547
16 IN2 15 COM2 14 GND2 13 NO2 12 V+ 11 NC3 10 GND3 9 COM3
IN1 1 N01 2 V- 3 GND1 4 COM1 5 GND4 6 V+ 7 NC1 8
16 N02 15 V+ 14 GND2 13 COM2 12 GND3 11 V10 NC2 9 IN2
MAX4545
15 GND6 14 N03 13 GND3 12 COM3 11 IN3
DIP/SO/SSOP
MAX4545 LOGIC SWITCH SWITCHES SHOWN FOR LOGIC "0" INPUT 0 1 OFF ON LOGIC 0 1
DIP/SO/QSOP
MAX4546 1, 2 OFF ON 3, 4 ON OFF LOGIC 0 1
DIP/SO/QSOP
MAX4547 NO-COM OFF ON NC-COM ON OFF
Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Quad/Dual, Low-Voltage, Bidirectional RF/Video Switches MAX4545/MAX4546/MAX4547
ABSOLUTE MAXIMUM RATINGS
(Voltages Referenced to GND) V+ .........-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 current rating.
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.
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 = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER ANALOG SWITCH Analog Signal Range Signal-Path On-Resistance Signal-Path On-Resistance Match Between Channels (Note 4) Signal-Path On-Resistance Flatness (Note 5) NO_, NC_ Off Leakage Current (Note 6) COM_ Off Leakage Current (Note 6) COM_ On Leakage Current (Note 6) LOGIC INPUT IN_ Input Logic Threshold High IN_ Input Logic Threshold Low IN_ Input Current Logic High or Low VIN_H VIN_L IINH_, IINL_ VIN_ = 0.8V or 2.4V C, E C, E C, E 0.8 -1 1.5 1.5 0.03 1 2.4 V V µA VCOM_, VNO_,VNC_ RON RON RFLAT(ON) INO_(OFF), INC_(OFF) ICOM_(OFF) ICOM_(ON) (Note 3) V+ = 4.5V, V- = -4.5V, VCOM_ = ±2V, ICOM_ = 10mA V+ = 4.5V, V- = -4.5V, VCOM_ = ±2V, ICOM_ = 10mA V+ = 5V; V- = -5V; VCOM_ = 1V, 0V, -1V; ICOM = 10mA V+ = 5.5V, V- = -5.5V, VCOM_ = ±4.5V, VN_ = 4.5V V+ = 5.5V, V- = -5.5V, VCOM_ = ±4.5V, VN_ = 4.5V V+ = 5.5V, V- = -5.5V, VCOM_ = ±4.5V, VN_ = 4.5V ± ± ± C, E +25°C C, E +25°C C, E +25°C +25°C C, E +25°C C, E +25°C C, E -5 -50 -5 -50 -10 -100 0.04 0.02 0.3 0.02 V14 18 0.5 V+ 20 25 1 1.25 0.5 5 50 5 50 10 100 V nA nA nA SYMBOL CONDITIONS TA MIN TYP (Note 2) MAX UNITS
2
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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 = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS TA MIN TYP (Note 2) 90 35 MAX UNITS
MAX4545/MAX4546/MAX4547
SWITCH DYNAMIC CHARACTERISTICS Turn-On Time Turn-Off Time Break-Before-Make Time Delay (MAX4546/MAX4547 only) Charge Injection (Note 3) NO_, NC_ Off Capacitance COM_ Off Capacitance tON tOFF tBBM Q CN_(OFF) VCOM_ = ±3V, V+ = 5V, V- = -5V, Figure 4 VCOM_ = ±3V, V+ = 5V, V- = -5V, Figure 4 VCOM_ = ±3V, V+ = 5V, V- = -5V, Figure 5 (Note 3) CL = 1.0nF, VNO_ = 0V, RS = 0, Figure 6 VNO_ = GND, f = 1MHz, Figure 8 MAX4545 +25°C MAX4546 6 11.5 +25°C 11.5 17 -80 +25°C -80 -82 -88 +25°C +25°C +25°C -80 -84 300 0.004 MHz % dB dB pF +25°C C, E +25°C C, E +25°C +25°C +25°C 15 40 60 6 6 pF 150 150 200 100 120 ns ns ns pC pF
VCOM_ = 0V, CCOM_(OFF) f = 1MHz, Figure 8
COM_ On Capacitance
CCOM_(ON)
MAX4545 VCOM_ = VNO_ = 0V, MAX4546 f = 1MHz, Figure 8 MAX4547 RL = 50, VCOM_ = 1VRMS, f = 10MHz, Figure 7 RL = 50, VCOM_ = 1VRMS, f = 10MHz, Figure 7 Figure 7, RL = 50 VIN = 5Vp-p, f < 20kHz, 600 in and out MAX4545 MAX4546 MAX4547 MAX4545 MAX4546 MAX4547
Off Isolation (Note 7)
VISO
Channel-to-Channel Crosstalk (Note 8) -3dB Bandwidth Distortion POWER SUPPLY Power-Supply Range V+ Supply Current V - Supply Current
VCT BW THD+N
V+, VI+ IV+ = 5.5V, all VIN_ = 0V or V+ V- = -5.5V
C, E +25°C C, E +25°C C, E
-6 -1 -10 -1 -10 0.05 0.05
+6 1 10 1 10
V µA µA
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