19-0271; Rev 2; 8/02
Precision, 8-Channel/Dual 4-Channel,
High-Performance, CMOS Analog Multiplexers
The MAX308/MAX309 are fabricated with Maxim’s
improved 44V silicon-gate process. Design improvements yield extremely low charge injection (less than
10pC) and guarantee electrostatic discharge protection
greater than 2000V.
These muxes operate with a single +5V to +30V supply
or bipolar ±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 industrystandard DG408, DG409, DG508A, and DG509A.
________________________Applications
Sample-and-Hold Circuits
Automatic Test Equipment
Heads-Up Displays
Guidance and Control Systems
Military Radios
Communications Systems
Battery-Operated Systems
PBX, PABX
Audio Signal Routing
____________________________Features
o Guaranteed On-Resistance Match Between
Channels, <5Ω Max
o Low On-Resistance, <100Ω Max
o Guaranteed Flat On-Resistance over Specified
Signal Range, 7Ω Max
o Guarateed Low Charge Injection, <10pC
o NO-Off Leakage Current <5nA at +85°C
o COM-Off Leakage Current <20nA at +85°C
o ESD Protection >2000V
o Plug-In Upgrade for Industry-Standard
DG408/DG409/DG508A/DG509A
o Single-Supply Operation (+5V to +30V)
Bipolar-Supply Operation (±5V to ±20V)
o Low Power Consumption, <300µW
o Rail-to-Rail Signal Handling
o TTL/CMOS-Logic Compatible
______________Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX308CPE
0°C to +70°C
16 Plastic DIP
MAX308CSE
MAX308C/D
MAX308CUE
MAX308EPE
MAX308ESE
MAX308EJE
MAX308EUE
MAX308MJE
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
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
16 Narrow SO
Dice*
16 TSSOP
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 TSSOP
16 CERDIP**
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
**Contact factory for availability.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
V+
TOP VIEW
V-
GND
NO1
A0 1
16 A1
EN 2
15 A2
V- 3
14 GND
NO4
13 V+
NO5
NO2 5
12 NO5
NO6
NO3 6
11 NO6
NO7
NO4 7
10 NO7
NO8
MAX308
NO1 4
COM 8
9
NO8
NO2
NO3
COM
CMOS DECODE LOGIC
DIP/SO/TSSOP
Continued at end of data sheet.
A2
A1
A0
EN
MAX308 8-CHANNEL SINGLE-ENDED MULTIPLEXER
________________________________________________________________ Maxim Integrated Products
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.
1
MAX308/MAX309
_______________General Description
The MAX308/MAX309 precision, monolithic, CMOS analog multiplexers (muxes) offer low on-resistance (less
than 100Ω), which is matched to within 5Ω between
channels and remains flat over the specified analog signal 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
than 250ns). The MAX308 is a single-ended 1-of-8
device, and the MAX309 is a differential 2-of-4 device.
