_______________General Description
The MAX398/MAX399 precision, monolithic, CMOS ana-
log multiplexers (muxes) offer low on-resistance (less
than 100
), which is matched to within 6
between
channels and remains flat over the specified analog sig-
nal range (11
max). They also offer low leakage over
temperature (NO-off leakage current less than 2.5nA at
+85C) and fast switching speeds (transition time less
than 250ns). The MAX398 is an 8-channel device, and
the MAX399 is a dual 4-channel device.
The MAX398/MAX399 are fabricated with Maxim's low-
voltage silicon-gate process. Design improvements
yield extremely low charge injection (less than 5pC) and
guarantee electrostatic discharge protection greater than
2000V.
These muxes operate with a single +3V to +15V supply or
bipolar 3V to 8V supplies, while retaining CMOS-logic
input compatibility and fast switching. CMOS inputs pro-
vide reduced input loading. The MAX398/MAX399 are
pin compatible with the industry-standard 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
Low-Voltage Data Acquisition Systems
____________________________Features
o
Pin Compatible with Industry-Standard
DG408/DG409/DG508A/DG509A
o
Guaranteed On-Resistance Match
Between Channels (<6
)
o
Low On-Resistance (<100
)
o
Guaranteed Flat On-Resistance over Signal
Range (<11
)
o
Guaranteed Low Charge Injection (<5pC)
o
NO-Off Leakage Current <1nA at +85C
o
COM-Off Leakage Current <2.5nA at +85C
o
Electrostatic Discharge Protection >2000V
o
Single-Supply Operation (+3V to +15V)
Bipolar-Supply Operation (3V to 8V)
o
Low Power Consumption (<300W)
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
______________Ordering Information
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for package availability.
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
________________________________________________________________
Maxim Integrated Products
1
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A1
A2
GND
V+
N01
V-
EN
A0
TOP VIEW
MAX398
NO5
NO6
NO7
NO8
COM
N04
N03
N02
DIP/SO
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A1
GND
V+
NO1B
N01A
V-
EN
A0
MAX399
NO2B
NO3B
NO4B
COMB
COMA
N04A
N03A
N02A
DIP/SO
__________________________________________________________Pin Configurations
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
PART
MAX398
CPE
MAX398CSE
MAX398C/D
0C to +70C
0C to +70C
0C to +70C
TEMP. RANGE
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
MAX398EPE
MAX398ESE
-40C to +85C
-40C to +85C
16 Plastic DIP
16 Narrow SO
MAX398EJE
MAX398MJE
-55C to +125C
-40C to +85C
16 CERDIP**
16 CERDIP**
19-0299; Rev. 2; 7/96
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS--Dual Supplies
(V+ = +5V 10%, V- = -5V 10%, GND = 0V, V
AH
= V
ENH
= +2.4V, V
AL
= V
ENL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
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.
Voltage Referenced to GND
V+ .......................................................................-0.3V to +17V
V- ........................................................................+0.3V to -17V
V+ to V-...............................................................-0.3V to +17V
Voltage into Any Terminal (Note 1).........(V- - 2V) to (V+ + 2V) or
30mA (whichever occurs first)
Current into Any Terminal ...................................................30mA
Peak Current, Any Terminal
(pulsed at 1ms, 10% duty cycle max) ............................40mA
Continuous Power Dissipation (T
A
= +70C)
Plastic DIP (derate 7.5mW/C above +70C) ..............470mW
Narrow SO (derate 8.7mW/C above +70C) ..............696mW
CERDIP (derate 10.0mW/C above +70C) .................900mW
Operating Temperature Ranges
MAX39_C_ _ .......................................................0C to +70C
MAX39_E_ _.....................................................-40C to +85C
MAX39_MJE ..................................................-55C to +125C
Storage Temperature Range .............................-65C to +150C
Lead Temperature (soldering, 10sec) .............................+300C
V
COM
= 4.5V,
V
NO
= 4.5V,
V+ = 5.5V, V- = -5.5V
V
COM
= 4.5V,
V
NO
= 4.5V,
V+ = 5.5V, V- = -5.5V
CONDITIONS
-10
10
I
COM(OFF)
COM-Off Leakage Current
(Note 6)
-1.5
1.5
-0.1
0.1
-20
20
-2.5
2.5
nA
-0.2
0.2
60
100
V
V-
V+
V
COM
, V
NO
Analog Signal Range
-10
10
I
NO(OFF)
NO-Off Leakage Current
(Note 6)
-1.0
1.0
nA
-0.1
0.1
14
R
FLAT(ON)
On-Resistance Flatness
(Note 5)
125
R
ON
Channel On-Resistance
6
8
R
ON
R
ON
Matching Between
Channels (Note 4)
11
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
MAX399
V
NO
= 4.5V, V
COM
= 4.5V,
V+ = 5.5V, V- = -5.5V
MAX398
I
NO
= 1mA, V
COM
= 3V,
V+ = 5V, V- = -5V
I
NO
= 1mA, V
COM
= 3.5V
I
NO
= 1mA, V
COM
= 3.5V,
V+ = 5V, V- = -5V
T
A
= +25C
(Note 3)
M
C, E
M
C, E
T
A
= +25C
M
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
C, E
T
A
= +25C
T
A
= +25C
Note 1:
Signals on any terminal exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.
V
COM
= 4.5V,
V
NO
= 4.5V,
-20
20
I
COM(ON)
COM-On Leakage Current
(Note 6)
-2.5
2.5
-0.2
0.2
-40
40
-5
5
nA
-0.4
0.4
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
MAX399
MAX398
M
C, E
T
A
= +25C
M
C, E
T
A
= +25C
SWITCH
V
EN
= V
A
= 0V/V+,
V+ = 5.5V, V- = -5.5V
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
_______________________________________________________________________________________
3
f = 1MHz,
V
EN
= V
D
= 0V
f = 1MHz,
V
EN
= V
D
= 0V
CONDITIONS
34
C
COM(ON)
COM-On Capacitance
pF
54
20
C
COM(OFF)
COM-Off Capacitance
pF
40
pF
11
C
NO(OFF)
NO-Off Capacitance
pF
8
C
IN
Logic Input Capacitance
dB
-92
V
CT
Crosstalk Between Channels
dB
-75
Off Isolation (Note 7)
pC
2
5
Q
Charge Injection (Note 3)
ns
250
t
ON(EN)
Enable Turn-On Time
60
150
V
2.4
V
AH
, V
ENH
Logic High Input Voltage
ns
0
40
t
OPEN
Break-Before-Make Interval
ns
150
t
TRANS
Transition Time
-1
1
I
GND
Ground Current
V
3
8
Power-Supply Range
A
-1
1
I+
Positive Supply Current
A
-1
1
I-
Negative Supply Current
A
-1
1
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
MAX399
MAX398
MAX399
MAX398
f = 1MHz, V
EN
= V
D
= 0V
f = 1MHz
V
EN
= 2.4V, f = 100kHz,
V
GEN
= 1V
p-p
, R
L
= 1k
Figure 2
Figure1
V
EN
= 0V, R
L
= 1k
, f = 100kHz
C
L
= 10nF, V
S
= 0V, R
S
= 0
V
EN
= V
A
= 0V/V+,
V+ = 5.5V, V- = -5.5V
Figure 3
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= +25C
ELECTRICAL CHARACTERISTICS--Dual Supplies (continued)
(V+ = +5V 10%, V- = -5V 10%, GND = 0V, V
AH
= V
ENH
= +2.4V, V
AL
= V
ENL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
V
0.8
V
AL
, V
ENL
Logic Low Input Voltage
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
A
V
A
= V
EN
= 0.8V
V
A
= V
EN
= 2.4V
A
-0.1
0.1
I
AH
, I
ENH
Input Current with
Input Voltage High
-0.1
0.1
I
AL
, I
ENL
Input Current with
Input Voltage Low
V
EN
= V
A
= 0V/V+,
V+ = 5.5V, V- = -5.5V
ns
200
t
OFF(EN)
Enable Turn-Off Time
40
150
Figure 3
T
A
= T
MIN
to T
MAX
T
A
= +25C
DIGITAL LOGIC INPUT
SUPPLY
DYNAMIC
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
4
_______________________________________________________________________________________
V
COM
= 4.5V,
V
NO
= 4.5V,
V+ = 5.5V
-20
20
I
COM(ON)
COM-On Leakage Current
(Note 8)
-2.5
2.5
-0.2
0.2
-40
40
-5
5
nA
V
COM
= 4.5V,
V
NO
= 0V,
V+ = 5.5V
-0.4
0.4
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
MAX399
V
COM
= 4.5V,
V
NO
= 0V,
V+ = 5.5V
MAX398
M
C, E
T
A
= +25C
M
C, E
T
A
= +25C
CONDITIONS
-10
10
I
COM(OFF)
COM-Off Leakage Current
(Note 8)
-1.5
1.5
-0.2
0.2
-20
20
-2.5
2.5
nA
-0.2
0.2
150
225
V
V-
V+
V
COM
, V
NO
Analog Signal Range
-10
10
I
NO(OFF)
NO-Off Leakage Current
(Note 8)
-1.0
1.0
nA
-0.1
0.1
15
22
R
FLAT
On-Resistance Flatness
280
R
ON
On-Resistance
11
13
R
ON
R
ON
Matching Between
Channels (Note 4)
10
18
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
MAX399
V
NO
= 4.5V, V
COM
= 0V,
V+ = 5.5V
MAX398
I
NO
= 1mA; V
COM
= 3V, 2V, 1V;
V+ = 5V
I
NO
= 1mA, V
COM
= 3.5V,
V+ = 4.5V
I
NO
= 1mA, V
COM
= 3.5V,
V+ = 4.5V
T
A
= +25C
(Note 3)
M
C, E
M
C, E
T
A
= +25C
M
T
A
= +25C
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
T
A
= +25C
T
A
= T
MIN
to T
MAX
C, E
T
A
= +25C
T
A
= +25C
V
T
A
= T
MIN
to T
MAX
T
A
= T
MIN
to T
MAX
A
V
A
= 0V
V
EN
= 0.8V
V
A
= V
EN
= 2.4V
A
-0.1
0.1
I
AH
, I
ENH
V
2.4
V
AH
, V
ENH
Logic High Input Voltage
-1.0
1.0
I
GND
I
GND
Supply Current
V
3
15
Power-Supply Range
A
-1.0
1.0
I+
Positive Supply Current
A
-1.0
1.0
I-
Negative Supply Current
A
-1.0
1.0
Input Current with
Input Voltage High
-0.1
0.1
0.8
V
AL
, V
ENL
Logic Low Input Voltage
I
AL
, I
ENL
Input Current with
Input Voltage Low
V
EN
= V+, 0V; V
A
= 0V;
V+ = 5.5V; V- = 0V
T
A
= T
MIN
to T
MAX
V
EN
= V
A
= 0V, V+; V+ = 5.5V; V- = 0V
V
EN
= V
A
= 0V, V+; V+ = 5.5V; V- = 0V
T
A
= +25C
ELECTRICAL CHARACTERISTICS--Single 5V
(V+ = 5V 10%, V- = 0V, GND = 0V, V
AH
= V
ENH
= +2.4V, V
AL
= V
ENL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
SWITCH
DIGITAL LOGIC INPUT
SUPPLY
MAX398/MAX399
Precision, 8-Channel/Dual 4-Channel,
Low-Voltage, CMOS Analog Multiplexers
_______________________________________________________________________________________
5
Note 2:
The algebraic convention, where the most negative value is a minimum and the most positive value a maximum, is used in
this data sheet.
Note 3:
Guaranteed by design.
Note 4:
R
ON
= R
ON
MAX - R
ON
MIN.
Note 5:
Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the
specified analog signal ranges, i.e., V
NO
= 3V to 0V and 0V to -3V.
Note 6:
Leakage parameters are 100% tested at maximum rated hot operating temperature, and guaranteed by correlation at +25C.
Note 7:
Worst-case isolation is on channel 4 because of its proximity to the COM pin. Off isolation = 20log V
COM
/V
NO
, V
COM
= output,
V
NO
= input to off switch.
Note 8:
Leakage testing at single supply is guaranteed by correlation testing with dual supplies.
ns
CONDITIONS
275
t
ON(EN)
Enable Turn-On Time
pC
1.5
5
Q
Charge Injection (Note 3)
t
OPEN
Break-Before-Make Interval
ns
90
245
t
TRANS
Transition Time
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
90
200
T
A
= T
MIN
to T
MAX
T
A
= +25C
C
L
= 10nF, V
S
= 0V, R
S
= 0
T
A
= +25C
V
NO
= 3V
T
A
= +25C
ELECTRICAL CHARACTERISTICS--Single 5V (continued)
(V+ = 5V 10%, V- = 0V, GND = 0V, V
AH
= V
ENH
= +2.4V, V
AL
= V
ENL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
ELECTRICAL CHARACTERISTICS--Single 3V
(V+ = 3V 10%, V- = 0V, GND = 0V, V
AH
= V
ENH
= +2.4V, V
AL
= V
ENL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
ns
CONDITIONS
Enable Turn-Off Time (Note 3)
pC
1
5
Q
Charge Injection (Note 3)
230
375
V
V-
V+
V
ANALOG
Analog Signal Range
UNITS
MIN
TYP
MAX
(Note 2)
SYMBOL
PARAMETER
Figure 3, V
INH
= 2.4V,
V
INL
= 0V, V
N01
= 1.5V
C
L
= 10nF, V
S
= 0V, R
S
= 0
T
A
= +25C
(Note 3)
T
A
= +25C
425
R
ON
On-Resistance
I
NO
= 1mA, V
COM
= 1.5V,
V+ = 3V
T
A
= T
MIN
to T
MAX
ns
230
575
t
TRANS
Transition Time (Note 3)
Figure 1, V
IN
= 2.4V,
V
N01
= 1.5V, V
N08
= 0V
T
A
= +25C
75
400
t
OFF(EN)
T
A
= +25C
ns
200
500
t
ON(EN)
Enable Turn-On Time (Note 3)
Figure 3, V
INH
= 2.4V,
V
INL
= 0V, V
N01
= 1.5V
T
A
= +25C
SWITCH
DYNAMIC
ns
10
40
ns
200
t
OFF(EN)
Enable Turn-Off Time
50
125
T
A
= T
MIN
to T
MAX
T
A
= +25C
DYNAMIC
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