19-0220; Rev 2; 7/96
S e ria l Co n t ro lle d , 8 -Ch a n n e l S P S T S w it c h
MAX35
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ 8 Separately Controlled SPST Switches
♦ SPI-Compatible Serial Interface
The MAX335 analog switch with serial digital interface
offers eight separately controlled single-pole-single-
throw (SPST) switches. All switches conduct equally in
either direction, and on-resistance (100Ω) is constant
over the analog signal range.
♦ Accepts ±15V Analog Swings
These CMOS switches can operate continuously with
power supplies ranging from ±4.5V to ±20V and handle
rail-to-rail analog signals. Upon power-up, all switches are
off, and the internal serial and parallel shift registers are
reset to zero. The MAX335 is equivalent to two DG211
quad switches but controlled by a serial interface.
♦ Multiple Devices Can Be Daisy Chained
______________Ord e rin g In fo rm a t io n
The interface is compatible with the Motorola SPI inter-
face standard. Functioning as a shift register, this serial
interface allows data (at DIN) to be locked in synchro-
nous with the rising edge of clock (SCLK). The shift reg-
ister's output (DOUT) enables several MAX335s to be
daisy chained.
PART
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 Wide SO
MAX335CNG
MAX335CWG
MAX335C/D
MAX335ENG
MAX335EWG
MAX335MRG
0°C to +70°C
0°C to +70°C
Dice*
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
24 Narrow Plastic DIP
24 Wide SO
________________________Ap p lic a t io n s
24 Narrow CERDIP**
Serial Data Acquisition and Process Control
* Contact factory for dice specifications.
** Contact factory for availability and processing to MIL-STD-883.
Avionics
Signal Routing
Networking
__________________P in Co n fig u ra t io n
TOP VIEW
________________Fu n c t io n a l Dia g ra m
NO0
NO7
SCLK
V+
1
2
3
4
5
6
7
8
9
24 CS
23 VL
DIN
22 DOUT
21 V-
COM0
COM7
MAX335
GND
NO0
20 NO7
19 COM7
18 NO6
17 COM6
16 NO5
15 COM5
14 NO4
13 COM4
PARALLEL REGISTER AND TRANSLATOR
8-BIT SHIFT REGISTER
COM0
NO1
DOUT
D
IN
COM1
NO2
V
L
+5V TRANSLATOR
COM2 10
NO3 11
MAX335
SCLK
CS
CLOCK TRANSLATOR
LATCH
COM3 12
DIP/SO
CS TRANSLATOR
SPI is a trademark of Motorola Corp.
________________________________________________________________ Maxim Integrated Products
1
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