19-1657; Rev 0; 3/00
High-Speed, Low-Voltage, 4鈩?
SPDT CMOS Analog Switch
General Description
The MAX4644 is a single-pole/double-throw (SPDT)
switch that operates from a single supply ranging from
+1.8V to +5.5V. It provides low 4鈩?on-resistance (R
ON
)
as well as 1鈩?R
ON
flatness over the entire analog signal
range. The MAX4644 offers fast switching times of less
than 20ns while ensuring break-before-make operation.
It typically consumes only 0.01碌W of quiescent power,
making it suitable for use in low-power, portable appli-
cations.
The MAX4644鈥檚 features include low leakage currents
over the entire temperature range, TTL/CMOS-compati-
ble digital logic, and excellent AC characteristics. It is
packaged in either a small 8-pin 碌MAX or a tiny 6-pin
SOT23.
Features
o
+1.8V to +5.5V Single-Supply Operation
o
Rail-to-Rail
廬
Analog Signal Range
o
Guaranteed R
ON
4鈩?max (+5V supply)
8鈩?max (+3V supply)
o
+1.8V Operation
R
ON
30鈩?typ Over Temperature
t
ON
18ns typ, t
OFF
12ns typ
o
Guaranteed R
ON
Flatness: 0.75鈩?typ (+5V supply)
o
Guaranteed R
ON
Match Between Channels:
0.1鈩?typ (+5V supply)
o
Low Leakage (<0.35nA) Over Entire Temperature
Range
o
Excellent AC Characteristics
Low Crosstalk: -82dB at 1MHz
High Off-Isolation: -80dB at 1MHz
0.018% Total Harmonic Distortion
o
Low Power Consumption: < 0.01碌W
MAX4644
________________________Applications
Battery-Operated Equipment
Audio and Video Signal Routing
Low-Voltage Data-Acquisition Systems
Sample-and-Hold Circuits
Communications Circuits
Ordering Information
PART
MAX4644EUT-T
MAX4644EUA
TEMP. RANGE
-40擄C to +85擄C
-40擄C to +85擄C
PIN-
PACKAGE
6 SOT23-6
8 碌MAX
TOP
MARK
AAHQ
鈥?/div>
Rail-to-Rail is a trademark of Nippon Motorola, Ltd.
Pin Configurations/Functional Diagrams/Truth Table
TOP VIEW
MAX4644
IN
1
V+
2
GND
3
6
5
4
NO
COM
NC
COM
1
NC
2
GND
3
V+
4
MAX4644
8
7
6
5
NO
N.C.
IN
N.C.
SOT23-6
碌MAX
MAX4644
IN
0
1
NC
ON
OFF
NO
OFF
ON
________________________________________________________________
Maxim Integrated Products
1
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
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