MAX4641 Datasheet, PDF (1/10 Pages) Maxim Integrated Products – High-Speed, Low-Voltage, 4Ω, Dual SPST CMOS Analog Switches

19-1656; Rev 1; 2/02
High-Speed, Low-Voltage, 4Ω, Dual SPST
CMOS Analog Switches
General Description
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_ON), 0.6Ω R_ON matching between channels, and
1Ω R_ON flatness over the entire analog signal range.
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.
Applications
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Rail-to-Rail is a trademark of Nippon Motorola, Ltd.
Features
o +1.8V to +5.5V Single-Supply Operation
o Rail-to-Rail™ Analog Signal Range
o Guaranteed R_ON
4Ω max (+5V supply)
8Ω max (+3V supply)
o +1.8V Operation
R_ON 30Ω typ Over Temperature
t_ON 18ns typ, t_OFF 12ns typ
o Guaranteed R_ON Flatness: 1Ω (+5V supply)
o Guaranteed R_ON Match Between Channels
0.6Ω (+5V supply)
o Low Leakage (<0.35nA) Over Entire Temperature
Range
o Excellent AC Characteristics
Low Crosstalk: -97dB at 1MHz
High Off-Isolation: -80dB at 1MHz
0.018% Total Harmonic Distortion
o Low Power Consumption: < 0.01µW
Ordering Information
PART
MAX4641EUA
MAX4641EGA
MAX4642EUA
MAX4642EGA
MAX4643EUA
MAX4643EGA
TEMP RANGE
-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
PIN-PACKAGE
8 µMAX
8 QFN 3 x 3
8 µMAX
8 QFN 3 x 3
8 µMAX
8 QFN 3 x 3
Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
MAX4641
MAX4642
MAX4643
NO1 1
COM1 2
IN2 3
GND 4
8 V+
7 IN1
6 COM2
5 NO2
NC1 1
COM1 2
IN2 3
GND 4
8 V+
7 IN1
6 COM2
5 NC2
NO1 1
COM1 2
IN2 3
GND 4
8 V+
7 IN1
6 COM2
5 NC2
µMAX
MAX4641
IN_
NO_
0
OFF
1
ON
Pin Configurations continued at end of data sheet.
µMAX
MAX4642
IN_
NC_
0
ON
1
OFF
µMAX
MAX4643
IN_
NO1
NC2
0
OFF
ON
1
ON
OFF
________________________________________________________________ Maxim Integrated Products 1
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.