MAX4643 Maxim, MAX4643 Datasheet

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MAX4643

Manufacturer Part Number
MAX4643
Description
The MAX4641/MAX4642/MAX4643 are monolithic, dual, single-pole/single-throw (SPST) switches that can operate from a single supply ranging from +1
Manufacturer
Maxim
Datasheet

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The MAX4641/MAX4642/MAX4643 are monolithic, dual,
single-pole/single-throw (SPST) switches that can operate
from a single supply ranging from +1.8V to +5.5V. The
MAX4641/MAX4642/MAX4643 provide low 4Ω on-resis-
tance (R
1Ω R
These devices offer fast switching times of less than 20ns
while consuming less than 0.01µW of quiescent power.
The MAX4641 has two normally open (NO) switches,
and the MAX4642 has two normally closed (NC)
switches. The MAX4643 has one NO switch and one NC
switch. All three devices have low 0.35nA leakage cur-
rents over the entire temperature range. The MAX4641/
MAX4642/MAX4643 are available in small 8-pin µMAX
and 8-pin QFN packages.
19-1656; Rev 1; 2/02
Rail-to-Rail is a 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.
Pin Configurations continued at end of data sheet.
TOP VIEW
ON
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
ON
flatness over the entire analog signal range.
COM1
GND
NO1
), 0.6Ω R
IN2
1
2
3
4
High-Speed, Low-Voltage, 4Ω, Dual SPST
________________________________________________________________ Maxim Integrated Products
IN_
0
1
ON
MAX4641
MAX4641
µMAX
matching between channels, and
General Description
NO_
OFF
ON
8
7
6
5
Pin Configurations/Functional Diagrams/Truth Tables
V+
IN1
COM2
NO2
Applications
COM1
GND
NC1
IN2
1
2
3
4
IN_
0
1
MAX4642
MAX4642
µMAX
CMOS Analog Switches
o +1.8V to +5.5V Single-Supply Operation
o Rail-to-Rail™ Analog Signal Range
o Guaranteed R
o +1.8V Operation
o Guaranteed R
o Guaranteed R
o Low Leakage (<0.35nA) Over Entire Temperature
o Excellent AC Characteristics
o Low Power Consumption: < 0.01µW
NC_
OFF
ON
MAX4641EUA
MAX4641EGA
MAX4642EUA
MAX4642EGA
MAX4643EUA
MAX4643EGA
Range
8
7
6
5
4Ω max (+5V supply)
8Ω max (+3V supply)
Low Crosstalk: -97dB at 1MHz
High Off-Isolation: -80dB at 1MHz
0.018% Total Harmonic Distortion
R
t
0.6Ω (+5V supply)
ON
PART
ON
V+
IN1
COM2
NC2
18ns typ, t
30Ω typ Over Temperature
COM1
GND
ON
ON
ON
NO1
IN2
IN_
0
1
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
OFF
TEMP RANGE
Flatness: 1Ω (+5V supply)
Match Between Channels
1
2
3
4
Ordering Information
12ns typ
MAX4643
MAX4643
µMAX
NO1
OFF
ON
PIN-PACKAGE
8 µMAX
8 QFN 3 x 3
8 µMAX
8 QFN 3 x 3
8 µMAX
8 QFN 3 x 3
8
7
6
5
NC2
OFF
ON
V+
IN1
COM2
NC2
Features
1

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MAX4643 Summary of contents

Page 1

... The MAX4641 has two normally open (NO) switches, and the MAX4642 has two normally closed (NC) switches. The MAX4643 has one NO switch and one NC switch. All three devices have low 0.35nA leakage cur- rents over the entire temperature range. The MAX4641/ MAX4642/MAX4643 are available in small 8-pin µ ...

Page 2

... 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

... ELECTRICAL CHARACTERISTICS—Single +5V Supply (continued) (V+ = +4.5V to +5.5V 2.4V, V INH INL PARAMETER SYMBOL DYNAMIC Turn-On Time (Note Turn-Off Time (Note 4) t OFF Break-Before-Make (Note 4) t BBM (MAX4643 only) Charge Injection Q C NO_ (OFF), NO_, NC_ Off-Capacitance COM_ Off-Capacitance C COM_ Switch On-Capacitance C (ON) Off-Isolation (Note 6) V ...

Page 4

... IN_ Input Logic Low V IL IN_ Input Current I IN DYNAMIC Turn-On Time (Note Turn-Off Time (Note 4) t OFF Break-Before-Make (Note 4) t BBM (MAX4643 only) Charge Injection Q C NO_(OFF) NO_, NC_ Off-Capacitance C NC_(OFF) COM_ Off-Capacitance C COM_(OFF) Switch On-Capacitance C (ON) Off-Isolation (Note 6) V ...

Page 5

High-Speed, Low-Voltage, 4Ω, Dual SPST (V+ = +5V or +3V V GND, T INH INL ON-RESISTANCE vs. V COM 10mA COM 3.0V 5 ...

Page 6

... FREQUENCY RESPONSE -10 ON-LOSS -20 OFF-ISOLATION -30 -40 -50 -60 -70 -80 -90 -100 0.01 0 100 1000 FREQUENCY (MHz) PIN MAX4641 MAX4642 MAX4643 1, 5 – – – – – – 1 – – Note: NO_, NC_, and COM_ pins are identical and interchangeable. Signals can be passed through either side of these bidirectional switches ...

Page 7

... NO_, NC_ GND Figure 1. Overvoltage Protection Using External Blocking Diodes The MAX4641/MAX4642/MAX4643 operate from a sin- gle supply ranging from +1.8V to +5.5V. The devices are guaranteed to be functional over that supply range, but TTL/CMOS compatibility is only valid for operation using a +5V supply. All voltage levels are referenced to GND ...

Page 8

... V+ V+ NO_ OPEN NO_ MAX4641 IN_ COM_ 50Ω GND V+ V+ NC_ OPEN NC_ MAX4642 IN_ COM_ 50Ω GND V+ V+ NO_ V NC_ S MAX4643 IN_ COM_ 50Ω GND Figure 2. Switching Times 8 _______________________________________________________________________________________ NO_ IN_ COM_ NO_ V COM_ 0 300Ω 35pF V + 0.5V IH ...

Page 9

... C L REQUIRED 1000pF Figure 5. NO_, NC_, and COM_ Capacitance MAX4642 ∆V OUT TRANSISTOR COUNT: 105 NETWORK ANALYZER 50Ω 50Ω MEAS REF 50Ω 50Ω V OUT OUT NO_ OR NC_ MAX4641 CAPACITANCE MAX4642 IN_ COM_ MAX4643 GND Chip Information 1MHz ANALYZER 9 ...

Page 10

... CMOS Analog Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied ...

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