MAX4853 Maxim, MAX4853 Datasheet

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MAX4853

Manufacturer Part Number
MAX4853
Description
The MAX4851/MAX4851H/MAX4853/MAX4853H family of quad single-pole/single-throw (SPST) switches operates from a single +2V to +5
Manufacturer
Maxim
Datasheet
The MAX4851/MAX4851H/MAX4853/MAX4853H family
of quad single-pole/single-throw (SPST) switches oper-
ates from a single +2V to +5.5V supply and can handle
signals greater than the supply rail. These switches fea-
ture low 3.5Ω on-resistance with 40pF on-capacitance
or 7Ω on-resistance with 30pF on-capacitance, making
them ideal for switching audio and data signals.
The MAX4851/MAX4851H are configured with four
SPST switches and feature a comparator for head-
phone detection or mute/send key functions. The
MAX4853/MAX4853H have four SPST switches but do
not include a comparator.
For over-rail applications, these devices offer either the
pass-through or high-impedance option. For the
MAX4851/ MAX4853, signals greater than the positive
supply (up to 5.5V) pass through the switch without dis-
tortion. For the MAX4851H/MAX4853H, the switch input
becomes high impedance when the input signal
exceeds the supply rail.
The MAX4851/MAX4851H/MAX4853/MAX4853H are
available in the space-saving, 16-pin, 3mm x 3mm thin
QFN package and operate over the -40°C to +85°C
extended temperature range.
19-3471; Rev 0; 10/04
Pin Configurations and Typical Operating Circuit appear at
end of data sheet
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
USB Switching
Audio Signal Routing
Cellular Phones
Notebook Computers
PDAs and Other Handheld Devices
3.5 Ω Ω /7 Ω Ω Quad SPST Switches with Over-Rail
________________________________________________________________ Maxim Integrated Products
General Description
Applications
♦ USB 2.0 Full Speed (12Mbps) and USB 1.1 Signal
♦ Switch Signals Greater than V
♦ +2V to +5.5V Supply Range
♦ 3.5Ω/7Ω On-Resistance
♦ 30pF On-Capacitance (7Ω Switch)
♦ 150MHz -3dB Bandwidth
♦ 1.8V Logic Compatibility
♦ Low Supply Current
♦ Low 0.01nA Leakage Current
♦ Available in a Space-Saving 3mm x 3mm, 16-Pin
*EP = Exposed paddle.
MAX4851ETE
MAX4851HETE -40°C to +85°C 16 TQFN-EP*
MAX4853ETE
MAX4853HETE -40°C to +85°C 16 TQFN-EP*
COUT
Switching
TQFN Package
NO1
NO2
NO3
NO4
0.01µA (MAX4853)
5µA (MAX4851)
10µA (MAX4851H/MAX4853H)
PART
MAX4851H
MAX4851
3.5Ω
3.5Ω
3.5Ω
3.5Ω
V
Block Diagram/Truth Table
CC
3
-40°C to +85°C 16 TQFN-EP*
-40°C to +85°C 16 TQFN-EP*
TEMP RANGE PIN-PACKAGE
Signal Handling
COM1
IN1
COM2
IN2
COM3
IN3
COM4
IN4
CIN
Ordering Information
SWITCHES SHOWN
FOR LOGIC "0" INPUT
TRUTH TABLE
IN_
0
1
NO_
OFF
ON
CC
NO1
NO2
NO3
NO4
MAX4853H
MAX4853
Features
3.5Ω
3.5Ω
7Ω
7Ω
MARK
ABW
TOP
ACB
ACC
ABX
COM1
IN1
COM2
IN2
COM3
IN3
COM4
IN4
1

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MAX4853 Summary of contents

Page 1

... For the MAX4851/ MAX4853, signals greater than the positive supply (up to 5.5V) pass through the switch without dis- tortion. For the MAX4851H/MAX4853H, the switch input becomes high impedance when the input signal exceeds the supply rail. The MAX4851/MAX4851H/MAX4853/MAX4853H are available in the space-saving, 16-pin, 3mm x 3mm thin QFN package and operate over the -40° ...

Page 2

... Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C CONDITIONS V CC MAX4851 V = 5.5V IN_ I MAX4851H/MAX4853H MAX4853 , NO_ COM_ COM_ T = +25°C A 10mA NO_ ...

Page 3

... nal = 50Ω 1MHz, Figure 5 OFF 1MHz, Figure 5 ON MAX4851H/MAX4853H HIZ (V + 0.5V), V < 5V, Figure MAX4851H/MAX4853H HIZB 0.5V < 5V, Figure 39Ω 50pF, Figure 2 SKEW 39Ω 50pF, Figure 2 PD ...

Page 4

... Note 3: Guaranteed by design and characterization; not production tested. Note 4: ∆ ON(MAX) ON(MIN) Note 5: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges. Note 6: Off-isolation = 20log ( COM_ 4 _______________________________________________________________________________________ CONDITIONS ...

Page 5

... ON-RESISTANCE vs. COM VOLTAGE 3.0V CC 7Ω SWITCH +85° +25° -40° COM VOLTAGE (V) Signal Handling MAX4851/MAX4853 ON-RESISTANCE vs. COM VOLTAGE 3.5 3 +85° +25°C A 2.0 1.5 1 -40° COM VOLTAGE (V) MAX4851H/MAX4853H ON-RESISTANCE vs. COM VOLTAGE 3.5 3 +85° ...

Page 6

... SUPPLY VOLTAGE (V) MAX4853H ON-RESISTANCE vs. COM VOLTAGE 5 5.0V CC 7Ω SWITCH 5 +85°C A 4.5 4 +25°C A 3.5 3.0 2.5 2 -40° COM VOLTAGE (V) MAX4853 SUPPLY CURRENT vs. SUPPLY VOLTAGE 1.0 0 +85°C A 0.6 0.4 0 +25° -40° 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) TURN-ON/TURN-OFF TIME vs. TEMPERATURE 34 3.5Ω SWITCH 32 30 ...

Page 7

Quad SPST Switches with Over-Rail (V = 3.0V +25°C, unless otherwise noted TURN-ON/TURN-OFF TIME vs. SUPPLY VOLTAGE 60 7Ω SWITCH OFF 10 0 ...

Page 8

... V NC 2V/div 0V V COM STATE 0V TOTAL HARMONIC DISTORTION vs. FREQUENCY 7Ω SWITCH R = 600Ω L 100 1k 10k 100k FREQUENCY (Hz) COMPARATOR THRESHOLD vs. TEMPERATURE = 5. RISING CMPI_ V FALLING CMPI_ - TEMPERATURE (°C) MAX4851H/MAX4853H SWITCH ENTERING HIGH-IMPEDANCE STATE MAX4851/3 toc33 V = 3.0V CC HI-Z HI-Z STATE 200µs/div ...

Page 9

... The MAX4851/MAX4853 devices feature over-rail signal capability that allows sig- nals up to 5.5V with supply voltages down to 2.0V to pass through without distortion. The MAX4851H/ MAX4853H enter high-impedance mode when the signal voltage exceeds V and return to normal operation CC when the signal voltage drops below V ...

Page 10

... Quad SPST Switches with Over-Rail Signal Handling MAX4851_ V CC MAX4853_ V CC COM_ NO_ V NO IN_ GND LOGIC INPUT C INCLUDES FIXTURE AND STRAY CAPACITANCE OUT Figure 1. Switching Time TxD TxD 39Ω ...

Page 11

... COM1 IN_ CC MAX4851_ MAX4853_ NO1* GND MEASUREMENTS ARE STANDARDIZED AGAINST SHORTS AT IC TERMINALS. OFF-ISOLATION IS MEASURED BETWEEN COM_ AND OFF NO_ TERMINAL ON EACH SWITCH. ON-LOSS IS MEASURED BETWEEN COM_ AND ON NO_ TERMINAL ON EACH SWITCH. CROSSTALK IS MEASURED FROM ONE CHANNEL TO THE OTHER CHANNEL. ...

Page 12

... V COUT_ COMPARATOR OUTPUT (V ) COUT_ 0V COMPARATORS 3 — 7 — 10nF V CC COM_ MAX4851_ MAX4853_ IN V NO_ GND Power-Supply Sequencing before applying CC t < 20ns R t < 20ns F 50% 50% t COMP 50% 50% Selector Guide OVER-RAIL HANDLING Input signal passes through the switch. High-impedance switch input. ...

Page 13

... NO4 IN2 10 3 IN3 COM2 3mm x 3mm THIN QFN TRANSISTOR COUNT: 735 PROCESS: CMOS USB CONNECTOR D+ D- USB DATA ENABLE SPEAKER ENABLE V CC MUTE BUTTON Signal Handling Pin Configurations COM4 N.C. 11 MAX4853 MAX4853H NO4 10 IN3 Chip Information 13 ...

Page 14

... COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS. 9. DRAWING CONFORMS TO JEDEC MO220 REVISION C. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. ...

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