19-0271; Rev 0; 7/94
P re c is io n , 8 -Ch a n n e l/Du a l 4 -Ch a n n e l,
Hig h -P e rfo rm a n c e , CMOS An a lo g Mu lt ip le x e rs
8/MAX309
_______________Ge n e ra l De s c rip t io n
____________________________Fe a t u re s
♦ Guaranteed On-Resistance Match Between
The MAX308/MAX309 precision, monolithic, CMOS ana-
log multiplexers (muxes) offer low on-resistance (less
than 100Ω), which is matched to within 5Ω between
channels and remains flat over the specified analog sig-
nal range (7Ω max). They also offer low leakage over
temperature (NO-off leakage current less than 5nA at
+85°C) and fast switching speeds (transition time less
tha n 250ns ). The MAX308 is a s ing le -e nd e d 1-of-8
device, and the MAX309 is a differential 2-of-4 device.
Channels, <5Ω Max
♦ Low On-Resistance, <100Ω Max
♦ Guaranteed Flat On-Resistance over Specified
Signal Range, 7Ω Max
♦ Guarateed Low Charge Injection, <10pC
♦ NO-Off Leakage Current <5nA at +85°C
♦ COM-Off Leakage Current <20nA at +85°C
♦ ESD Protection >2000V
♦ Plug-In Upgrade for Industry-Standard
DG408/DG409/DG508A/DG509A
The MAX308/MAX309 a re fa b ric a te d with Ma xim’s
improved 44V silicon-gate process. Design improve-
ments yield extremely low charge injection (less than
10pC) and guarantee electrostatic discharge protection
greater than 2000V.
♦ Single-Supply Operation (+4.5V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
♦ Low Power Consumption, <300µW
♦ Rail-to-Rail Signal Handling
♦ TTL/CMOS-Logic Compatible
These muxes operate with a single +4.5V to +30V sup-
ply or bipolar ±4.5V to ±20V supplies, while retaining
TTL/CMOS-logic input compatibility and fast switching.
CMOS inputs provide reduced input loading. These
improved parts are plug-in upgrades for the industry-
standard DG408, DG409, DG508A, and DG509A.
______________Ord e rin g In fo rm a t io n
PART
TEMP. RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
MAX308CPE
MAX308CSE
MAX308C/D
MAX308EPE
MAX308ESE
MAX308EJE
MAX308MJE
0°C to +70°C
________________________Ap p lic a t io n s
Sample-and-Hold Circuits
Automatic Test Equipment
Heads-Up Displays
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
16 Plastic DIP
16 Narrow SO
16 CERDIP
Guidance and Control Systems
Military Radios
16 CERDIP**
Communications Systems
Battery-Operated Systems
PBX, PABX
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
Audio Signal Routing
_____________________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
V+
V-
GND
NO1
NO2
NO3
NO4
NO5
A0
EN
A1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A2
V-
GND
V+
NO1
COM
MAX308
NO2
NO3
NO5
NO6
NO7
NO8
NO6
NO7
NO8
NO4
CMOS DECODE LOGIC
COM
DIP/SO
A2
A1
A0
EN
Continued at end of data sheet.
MAX308 8-CHANNEL SINGLE-ENDED MULTIPLEXER
________________________________________________________________ Maxim Integrated Products
1
Ca ll t o ll fre e 1 -8 0 0 -9 9 8 -8 8 0 0 fo r fre e s a m p le s o r lit e ra t u re .