MAX308/MAX309
19-0271; Rev 2; 8/02
Precision, 8-Channel/Dual 4-Channel,
High-Performance, CMOS Analog Multiplexers
_______________General Description ____________________________Features
Guaranteed On-Resistance Match Between
The MAX308/MAX309 precision, monolithic, CMOS ana-
Channels, <5 Max
log multiplexers (muxes) offer low on-resistance (less
than 100 ), which is matched to within 5 between Low On-Resistance, <100 Max
channels and remains flat over the specified analog sig-
Guaranteed Flat On-Resistance over Specified
nal range (7 max). They also offer low leakage over
Signal Range, 7 Max
temperature (NO-off leakage current less than 5nA at
Guarateed Low Charge Injection, <10pC
+85C) and fast switching speeds (transition time less
NO-Off Leakage Current <5nA at +85C
than 250ns). The MAX308 is a single-ended 1-of-8
COM-Off Leakage Current <20nA at +85C
device, and the MAX309 is a differential 2-of-4 device.
ESD Protection >2000V
The MAX308/MAX309 are fabricated with Maxims
Plug-In Upgrade for Industry-Standard
improved 44V silicon-gate process. Design improve-
DG408/DG409/DG508A/DG509A
ments yield extremely low charge injection (less than
10pC) and guarantee electrostatic discharge protection Single-Supply Operation (+5V to +30V)
Bipolar-Supply Operation (5V to 20V)
greater than 2000V.
Low Power Consumption, <300W
These muxes operate with a single +5V to +30V supply
or bipolar 5V to 20V supplies, while retaining Rail-to-Rail Signal Handling
TTL/CMOS-logic input compatibility and fast switching.
TTL/CMOS-Logic Compatible
CMOS inputs provide reduced input loading. These
______________Ordering Information
improved parts are plug-in upgrades for the industry-
standard DG408, DG409, DG508A, and DG509A.
PART TEMP RANGE PIN-PACKAGE
MAX308CPE 0C to +70C 16 Plastic DIP
________________________Applications
MAX308CSE 0C to +70C 16 Narrow SO
Sample-and-Hold Circuits
MAX308C/D 0C to +70C Dice*
Automatic Test Equipment
MAX308CUE 0C to +70C 16 TSSOP
Heads-Up Displays
MAX308EPE -40C to +85C 16 Plastic DIP
Guidance and Control Systems
MAX308ESE -40C to +85C 16 Narrow SO
Military Radios
MAX308EJE -40C to +85C 16 CERDIP
Communications Systems
MAX308EUE -40C to +85C 16 TSSOP
Battery-Operated Systems
MAX308MJE -55C to +125C 16 CERDIP**
PBX, PABX
Ordering Information continued at end of data sheet.
*Contact factory for dice specifications.
Audio Signal Routing
**Contact factory for availability.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
V+ V- GND
TOP VIEW
NO1
A0
A1
1 16
NO2
EN
2 A2
15
NO3
V-
3 GND
14
NO4
COM
NO1
MAX308 V+
4 13
NO5
NO2 NO5
5 12 NO6
NO7
NO3 NO6
6 11
NO8
NO4
7 10 NO7
COM CMOS DECODE LOGIC
8 9 NO8
DIP/SO/TSSOP
A2 A1 A0 EN
Continued at end of data sheet.
MAX308 8-CHANNEL SINGLE-ENDED MULTIPLEXER
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxims website at www.maxim-ic.com.Precision, 8-Channel/Dual 4-Channel,
High-Performance, CMOS Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V- Continuous Power Dissipation (T = +70C)
A
V+ ............................................................................-0.3V, 44V Plastic DIP (derate 10.53mW/C above +70C) ..........842mW
GND.........................................................................-0.3V, 25V Narrow SO (derate 8.70mW/C above +70C) ............696mW
Digital Inputs, NO, COM (Note 1)...........(V- - 2V) to (V+ + 2V) or CERDIP (derate 10.00mW/C above +70C)...............800mW
30mA, (whichever occurs first) TSSOP (derate 6.7mW/C above +70C) ....................457mW
Continuous Current (any terminal)......................................30mA Operating Temperature Ranges
Peak Current, NO or COM MAX30_C_ _ .......................................................0C to +70C
(pulsed at 1ms, 10% duty cycle max) ..........................100mA MAX30_E_ _.....................................................-40C to +85C
MAX30_MJE ..................................................-55C to +125C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
Note 1: Signals on NO, COM, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Limit forward current to
maximum current ratings.
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICSDual Supplies
(V+ = +15V, V- = -15V, GND = 0V, V = +2.4V, V = +0.8V, T = T to T , unless otherwise noted.)
AH AL A MIN MAX
MIN TYP MAX
PARAMETER SYMBOL CONDITIONS UNITS
(Note 2)
SWITCH
V ,
NO
Analog Signal Range (Note 3) -15 15 V
V
COM
T = +25C 60 100
I = -1.0mA, A
NO
On-Resistance R
ON
V = 10V
COM
T = T to T 125
A MIN MAX
T = +25C 1.5 5
A
On-Resistance Matching I = -1.0mA,
NO
R
ON
Between Channels V = 10V (Note 4)
COM T = T to T 8
A MIN MAX
T = +25C 1.8 7
I = -1.0mA, A
NO
On-Resistance Flatness R
FLAT
V = 5V or 0V
COM
T = T to T 10
A MIN MAX
T = +25C -0.5 0.01 0.5
A
V = +10V,
COM
NO-Off Leakage Current
I V = 10V, C, E -2.5 2.5 nA
NO(OFF) NO
T = T
A MIN
(Note 5)
V = 0V
EN
to T
MAX
M -5.0 5.0
T = +25C -0.75 0.02 0.75
A
V = 10V,
NO
V = +10V, MAX308 C, E -10 10
COM
T = T
A MIN
V = 0V
EN
to T
MAX M -20 20
COM-Off Leakage Current
I nA
COM(OFF)
(Note 5)
T = +25C -0.75 0.02 0.75
A
V = +10V,
NO
V = 10V, MAX309 C, E -5 5
COM
T = T
A MIN
V = 0V
EN
to T
MAX M -10 10
T = +25C -0.75 0.02 0.75
A
V = 10V,
COM MAX308 C, E -10 10
T = T
A MIN
V = 10V,
NO
to T
MAX
M -20 20
COM-On Leakage Current
I sequence nA
COM(ON)
(Note 5)
T = +25C -0.75 0.02 0.75
A
each switch
on MAX309 C, E -5 5
T = T
A MIN
to T
MAX
M -10 10
2 _______________________________________________________________________________________
MAX308/MAX309