MAX4644 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – High-Speed, Low-Voltage, 4Ω, SPDT CMOS Analog Switch

19-1657; Rev 0; 3/00
High-Speed, Low-Voltage, 4Ω,
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 4Ω on-resistance (R_ON)
as well as 1Ω 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 0.01µW of quiescent power,
making it suitable for use in low-power, portable appli-
cations.
The MAX4644’s 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 µMAX or a tiny 6-pin
SOT23.
________________________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: 0.75Ω typ (+5V supply)
o Guaranteed R_ON Match Between Channels:
0.1Ω 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: < 0.01µW
Ordering Information
PART
TEMP. RANGE
MAX4644EUT-T -40°C to +85°C
MAX4644EUA -40°C to +85°C
PIN-
PACKAGE
6 SOT23-6
8 µMAX
TOP
MARK
AAHQ
—
TOP VIEW
Pin Configurations/Functional Diagrams/Truth Table
MAX4644
MAX4644
IN 1
V+ 2
GND 3
6 NO
5 COM
4 NC
SOT23-6
COM 1
NC 2
GND 3
V+ 4
MAX4644
IN NC NO
0 ON OFF
1 OFF ON
µMAX
8 NO
7 N.C.
6 IN
5 N.C.
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