MAX4639 Maxim, MAX4639 Datasheet

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MAX4639

Manufacturer Part Number
MAX4639
Description
The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/demuxes)
Manufacturer
Maxim
Datasheet

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The MAX4638/MAX4639 are single 8:1 and dual 4:1
CMOS analog multiplexers/demultiplexers (muxes/
demuxes). Each mux operates from a single +1.8V to
+5V supply or dual ±2.5V supplies. These devices fea-
ture 3.5Ω on-resistance (R
single +5V supply and have -75dB off-isolation and
-85dB crosstalk from the output to each off channel.
The switching times are 18ns t
feature a -3dB 85MHz bandwidth and a guaranteed
0.25nA leakage current at +25°C.
A +1.8V to +5.5V operating range makes the MAX4638/
MAX4639 ideal for battery-powered, portable instru-
ments. All channels guarantee break-before-make
switching. These parts feature bidirectional operation
and can handle Rail-to-Rail
inputs are TTL/CMOS-logic compatible. Decoding is in
standard BCD format, and an enable input is provided to
simplify cascading of devices. These devices are avail-
able in small 16-pin thin QFN, TSSOP, and SO packages,
as well as a 20-pin thin QFN package.
19-1782; Rev 2; 2/04
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
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.
TOP VIEW
Automatic Test Equipment
Low-Voltage Data-Acquisition Systems
Audio and Video Signal Routing
Medical Equipment
Battery-Powered Equipment
Relay Replacement
COM
NO1
NO2
NO3
NO4
A0
EN
V-
1
2
3
4
5
6
7
8
________________________________________________________________ Maxim Integrated Products
TSSOP/SO
MAX4638
General Description
LOGIC
®
ON
analog signals. All control
) when powered with a
ON
16
15
14
13
12
11
10
9
Applications
and 7ns t
Low-Voltage Analog Multiplexers
A1
A2
GND
NO6
NO7
NO8
V+
NO5
3.5Ω, Single 8:1 and Dual 4:1,
OFF
. They
Pin Configurations/Functional Diagrams
Ordering Information continued at end of data sheet.
MAX4638ETE
MAX4638EUE
MAX4638ESE
MAX4638ETP
Guaranteed R
Guaranteed 0.4Ω R
Guaranteed 1Ω R
Guaranteed Low Leakage Currents
Switching Times: t
+1.8V to +5.5V Single-Supply Operation
±2.5V Dual-Supply Operation
Rail-to-Rail Signal Handling
TTL/CMOS-Logic Compatible
Crosstalk: -80dB (1MHz)
Off-Isolation: -60dB (10MHz)
3.5Ω (+5V or ±2.5V Supplies)
6Ω (+3V Supply)
0.25nA at +25°C
PART
COMA
NO1A
NO2A
NO3A
NO4A
ON
A0
EN
V-
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
-40 C to +85 C
TEMP RANGE
ON
1
2
3
4
5
6
7
8
ON
Ordering Information
ON
Flatness Over Signal Range
TSSOP/SO
= 18ns, t
Match Between Channels
MAX4639
LOGIC
OFF
PIN-PACKAGE
16 Thin QFN (4 4)
16 TSSOP
16 SO
20 Thin QFN (4 4)
16
15
14
13
12
11
10
9
= 7ns
A1
GND
V+
NO3B
NO4B
COMB
NO1B
NO2B
Features
1

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MAX4639 Summary of contents

Page 1

... Rev 2; 2/04 General Description The MAX4638/MAX4639 are single 8:1 and dual 4:1 CMOS analog multiplexers/demultiplexers (muxes/ demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices fea- ture 3.5Ω on-resistance (R ) when powered with a ON single +5V supply and have -75dB off-isolation and -85dB crosstalk from the output to each off channel ...

Page 2

... their maximum ratings. 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— ...

Page 3

... T A Figure MAX4638 T C OM_ 1MHz, MAX4639 T Figure COM_ MAX4638 0V, NO_ (ON 1MHz, MAX4639 T A Figure ISO 10M ...

Page 4

Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers ELECTRICAL CHARACTERISTICS—+3.0V Single Supply (V+ = +2.7V to +3.3V +2.0V and T = +25°C.) (Note 9) A PARAMETER SYMBOL ANALOG SWITCH V COM_ Analog ...

Page 5

... 1MHz, NO_ T A Figure MAX4638 1MHz, MAX4639 T Figure COM NO_ MAX4638 0V, (ON 1MHz, MAX4639 T A Figure +3.3V IN_ = +2.0V +0.4V MIN CONDITIONS , COM_ V NO_ 10m 1.5V, A COM_ NO_ ...

Page 6

... ON(EN) (Note 5) Enable Turn-Off Time t OFF(EN) (Note 5) Break-Before-Make (Note 5) t BBM Note 2: The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in this data sheet. Note 3: ∆ ON(MAX) ON(MIN) Note 4: Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges ...

Page 7

+25°C, unless otherwise noted.) A ON-RESISTANCE vs. V COM + 0.5 1.0 1.5 2.0 2.5 3.0 3.5 ...

Page 8

... Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers (V+ = +5V +25°C, unless otherwise noted.) A FREQUENCY RESPONSE 0 ON-RESPONSE MAX4638 -20 ON-RESPONSE MAX4639 -40 OFF-ISOLATION -60 CROSSTALK -80 -100 -120 0.01 0 100 1000 FREQUENCY (MHz) PIN MAX4638 THIN QFN DIP/SO 16-PIN 20-PIN 1, 15, 16 15, 14, 13 19, 18, 17 — ...

Page 9

... The MAX4638 is an 8:1 mux that switches one of eight inputs (NO1–NO8 common output (COM) as determined by the 3-bit binary inputs A0, A1, and A2. The MAX4639 is a 4:1 dual mux that switches one of four differential inputs to a common differential out- put as determined by the 2-bit binary inputs A0 and A1. ...

Page 10

... Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers NO2–NO7 A0 50Ω MAX4638 GND NO1B A1 NO1A–NO4A A0 50Ω MAX4639 NO4B COMB GND Figure 2. Transition Time NO2–NO7 A0 MAX4638 GND V- 50Ω ...

Page 11

... NO_, COMA MAX4639 A1 GND 50Ω Figure 4. Enable Switching Time R S NO_ MAX4638 CHANNEL MAX4639 A1 SELECT A2 GND Figure 5. Charge Injection ______________________________________________________________________________________ 3.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers Test Circuits/Timing Diagrams (continued) NO1 V NO1 LOGIC COM V INPUT OUT V- V 35pF EN 100Ω ...

Page 12

... OUT V IN Figure 7. Crosstalk TRANSISTOR COUNT: 632 1MHz CAPACITANCE ANALYZER Note: Exposed pad on thin QFN packages is connected to V 1MHz 1µ NO1 NO2 NO8 MAX4638 V OUT COM A0 MAX4639 5pF A2 50Ω GND EN V- 1µ OUT V CROSSTALK = 20log ...

Page 13

... THIN QFN ______________________________________________________________________________________ Pin Configurations (continued GND NO1A 2 V+ MAX4639 NO5 NO2A 3 9 NO6 NO3A 4 THIN QFN 15 GND NO5 NO1A 3 MAX4639 12 NO6 NO2A 4 11 NO7 NO3A 5 THIN QFN NO1B 10 NO2B 9 NO3B 15 GND NO1B 12 NO2B 11 NO3B 13 ...

Page 14

... Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 14 ______________________________________________________________________________________ Package Information ...

Page 15

... For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ 3.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers Package Information (continued) PACKAGE OUTLINE 12, 16, 20, 24L THIN QFN, 4x4x0.8mm 1 C 21-0139 ...

Page 16

... A1 FRONT VIEW 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 _____________________16 © ...

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