MAX335 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Serial Controlled, 8-Channel SPST Switch

19-0220; Rev 2; 7/96
Serial Controlled, 8-Channel SPST Switch
_______________General Description
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.
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.
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.
________________________Applications
Serial Data Acquisition and Process Control
Avionics
Signal Routing
Networking
____________________________Features
o 8 Separately Controlled SPST Switches
o SPI-Compatible Serial Interface
o Accepts ±15V Analog Swings
o Multiple Devices Can Be Daisy Chained
______________Ordering Information
PART
MAX335CNG
MAX335CWG
MAX335C/D
MAX335ENG
MAX335EWG
MAX335MRG
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 Wide SO
Dice*
24 Narrow Plastic DIP
24 Wide SO
24 Narrow CERDIP**
* Contact factory for dice specifications.
** Contact factory for availability and processing to MIL-STD-883.
__________________Pin Configuration
________________Functional Diagram
TOP VIEW
NO0
NO7
COM0
COM7
PARALLEL REGISTER AND TRANSLATOR
D_IN
8-BIT SHIFT REGISTER
DOUT
V_L
+5V TRANSLATOR
SCLK
CLOCK TRANSLATOR
CS
CS TRANSLATOR
MAX335
LATCH
SCLK 1
V+ 2
DIN 3
GND 4
NO0 5
COM0 6
NO1 7
COM1 8
NO2 9
COM2 10
NO3 11
COM3 12
MAX335
24 CS
23 VL
22 DOUT
21 V-
20 NO7
19 COM7
18 NO6
17 COM6
16 NO5
15 COM5
14 NO4
13 COM4
DIP/SO
SPI is a trademark of Motorola Corp.
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