CMOS analog switches with low on-resistance of 10鈩?/div>
max, specifically designed to handle large switch cur-
rents. With a switch capability of up to 400mA peak cur-
rent and 300mA continuous current (MAX4655/
MAX4656), and up to 300mA peak current and 150mA
continuous current (MAX4657/MAX4658), these parts
can switch loads as low as 25鈩? They can replace reed
relays with a million times the speed and virtually unlim-
ited number of lifetime cycles. Normal power consump-
tion is only 3mW, whether the switch is on or off. These
parts are TTL/CMOS compatible and will switch any
voltage within its power-supply range.
These are SPST (single-pole/single-throw) switches.
The MAX4655/MAX4657 are normally closed (NC),
while the MAX4656/MAX4658 are normally open (NO).
The difference between the MAX4655/MAX4656 and
the MAX4657/MAX4658 is in the power dissipation of
their packages. Refer to the
Absolute Maximum Ratings
and the
Electrical Characteristics.
The MAX4655鈥揗AX4658 power-supply range is from
鹵4.5V to 鹵20V for dual supply operation and +9V to
+40V for single supply operation. These switches can
operate from any combination of supplies, within a 40V
V+ to V- range. They conduct equally well in either direc-
tion and can handle Rail-to-Rail
廬
analog signals. The off-
leakage current is only 1nA max at T
A
= +25擄C. They are
available in 8-pin 碌MAX, QFN, and SO packages, with
exposed pad options for high-power applications.
o
High Continuous Current Handling
300mA (MAX4655/MAX4656)
150mA (MAX4657/MAX4658)
o
High Peak Current Handling
400mA (MAX4655/MAX4656)
300mA (MAX4657/MAX4658)
o
10鈩?max On-Resistance (鹵15V supplies)
o
V
L
not Required
o
1鈩?max R
ON
Flatness over Specified Signal
Range
o
Rail-to-Rail Signal Handling
o
+12V Single Supply or 鹵15V Dual Supply
Operation
o
Pin Compatible with DG417, DG418
Features
MAX4655鈥揗AX4658
Ordering Information
PART
MAX4655EGA
MAX4655EUA
MAX4655ESA
MAX4656EGA
MAX4656EUA
MAX4656ESA
MAX4657EGA
MAX4657EUA
MAX4657ESA
MAX4658EGA
MAX4658EUA
MAX4658ESA
TEMP. RANGE
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN-PACKAGE
8 QFN
8
碌MAX-EP*
8 SO-EP*
8 QFN
8
碌MAX-EP*
8 SO-EP*
8 QFN
8
碌MAX
8 SO
8 QFN
8
碌MAX
8 SO
Applications
Relay Replacement
Test Equipment
Communication Systems
xDSL Modems
PBX, PABX Systems
Audio Signal Routing
Audio Systems
PC Multimedia Boards
Redundant/Backup Systems
*EP = exposed pad
Pin Configurations/
Functional Diagrams/Truth Tables
TOP VIEW
COM
N.C.
1
2
8
7
6
MAX4655/MAX4657
5
NC
V-
IN
N.C.
COM
N.C.
1
2
8
7
6
MAX4656/MAX4658
5
NO
V-
IN
N.C.
GND
3
V+
4
GND
3
V+
4
碌MAX/SO/QFN
MAX4655/MAX4657
LOGIC
SWITCH
0
1
ON
OFF
碌MAX/SO/QFN
MAX4656/MAX4658
LOGIC
SWITCH
0
1
N.C. = NO CONNECT
NC = NORMALLY CLOSED
OFF
ON
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
SWITCHES SHOWN FOR LOGIC "0" INPUT
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.