19-1136; Rev 3; 10/01
Qu a d , Lo w -Vo lt a g e , S P S T An a lo g S w it c h e s
Ge n e ra l De s c rip t io n
Fe a t u re s
The MAX4521/MAX4522/MAX4523 are quad, low-volt-
age, single-pole/single-throw (SPST) analog switches.
On-resistance (100Ω max) is matched between switch-
es to 4Ω max, and is flat (12Ω max) over the specified
signal range. Each switch can handle Rail-to-Rail ana-
log s ig na ls . The off-le a ka g e c urre nt is only 1nA a t
+25°C and 10nA at +85°C.
ꢀ +2V to +12V Single Supply
±2V to ±6V Dual Supplies
ꢀ 100Ω Signal Paths with ±5V Supplies
ꢀ Low Power Consumption, <1µW
®
ꢀ 4 Separately Controlled SPST Switches
ꢀ Rail-to-Rail Signal Handling
The MAX4521 has four normally closed (NC) switches,
and the MAX4522 has four normally open (NO) switch-
es. The MAX4523 has two NC switches and two NO
switches.
ꢀ Pin Compatible with Industry-Standard
DG211/DG212/DG213
ꢀ >2kV ESD Protection per Method 3015.7
These CMOS switches can operate with dual power
supplies ranging from ±2V to ±6V or a single supply
between +2V and +12V. They are fully specified for sin-
gle +2.7V operation.
ꢀ TTL/CMOS-Compatible Inputs with ±5V or
Single +5V Supply
All digital inputs have +0.8V and +2.4V logic thresh-
old s , e ns uring TTL/CMOS-log ic c omp a tib ility whe n
using ±5V or a single +5V supply.
Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 QSOP
Ap p lic a t io n s
MAX4521CPE
MAX4521CSE
MAX4521CEE
MAX4521CUE
MAX4521CGE
MAX4521C/D
Battery-Operated Equipment
Data Acquisition
Test Equipment
Avionics
16 TSSOP
16 QFN
Dice*
Audio Signal Routing
Networking
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
Pin Configurations continued at end of data sheet.
P in Co n fig u ra t io n s /Fu n c t io n a l Dia g ra m s /Tru t h Ta b le s
TOP VIEW
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
IN1
16
15
14
IN1
16 IN2
15 COM2
14 NO2
13 V+
IN1
16 IN2
15 COM2
14 NC2
13 V+
IN2
COM1
NC1
V-
COM2
NC2
COM1
NO1
V-
COM1
NO1
V-
13 V+
MAX4522
MAX4523
MAX4521
N.C.
GND
NC4
12
11
10
9
12
12
11
10
9
GND
NO4
GND
NO4
N.C.
N.C.
NC3
COM3
IN3
NC3
COM3
IN3
11
10
9
NO3
COM3
IN3
COM4
IN4
COM4
IN4
COM4
IN4
DIP/SO/QSOP/TSSOP
DIP/SO/QSOP/TSSOP
DIP/SO/QSOP/TSSOP
MAX4521
MAX4522
MAX4523
SWITCHES
1, 4
SWITCHES
2, 3
LOGIC
SWITCH
LOGIC
SWITCH
LOGIC
0
1
ON
0
1
OFF
ON
0
1
OFF
ON
ON
OFF
OFF
SWITCHES SHOWN FOR LOGIC "0" INPUT
N.C. = NOT CONNECTED
________________________________________________________________ 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.