Page 1
_______________General Description
The MAX338/MAX339 are monolithic, CMOS analog
multiplexers (muxes). The 8-channel MAX338 is
designed to connect one of eight inputs to a common
output by control of a 3-bit binary address. The dual, 4channel MAX339 is designed to connect one of four
inputs to a common output by control of a 2-bit binary
address. Both devices can be used as either a mux or
a demux. On-resistance is 400Ω max, and the devices
conduct current equally well in both directions.
These muxes feature extremely low off leakages (less
than 20pA at +25°C), and extremely low on-channel
leakages (less than 50pA at +25°C). The new design
offers guaranteed low charge injection (1.5pC typ) and
electrostatic discharge (ESD) protection greater than
2000V, per method 3015.7. These improved muxes are
pin-compatible upgrades for the industry-standard
DG508A and DG509A. For similar Maxim devices with
lower leakage and charge injection but higher on-resistance, see the MAX328 and MAX329.
The MAX338/MAX339 operate from a single +4.5V to
+30V supply or from dual supplies of ±4.5V to ±20V.
All control inputs (whether address or enable) are TTL
compatible (+0.8V to +2.4V) over the full specified temperature range and over the ±4.5V to ±18V supply
range. These parts are fabricated with Maxim’s 44V silicon-gate process.
________________________Applications
Data-Acquisition Systems Sample-and-Hold Circuits
Test Equipment Heads-Up Displays
Military Radios Communications Systems
Guidance and Control Systems
PBX, PABX
____________________________Features
♦ On-Resistance, <400Ω max
♦ Transition Time, <500ns
♦ On-Resistance Match, <10Ω
♦ NO-Off Leakage Current, <20pA at +25°C
♦ 1.5pC Charge Injection
♦ Single-Supply Operation (+4.5V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
♦ Plug-In Upgrade for Industry-Standard
DG508A/DG509A
♦ Rail-to-Rail Signal Handling
♦ TTL/CMOS-Logic Compatible
♦ ESD Protection >2000V, per Method 3015.7
______________Ordering Information
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
________________________________________________________________
Maxim Integrated Products
1
CMOS DECODE LOGIC
A2 A1 A0 EN
NO8
NO7
NO6
NO5
NO4
NO3
NO2
NO1
COM
V+ V- GND
MAX338 8-CHANNEL SINGLE-ENDED MULTIPLEXER
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A1
A2
GND
V+
NO1
V-
EN
A0
TOP VIEW
MAX338
NO5
NO6
NO7
NO8
COM
NO4
NO3
NO2
DIP/SO
Continued at end of data sheet.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
Call toll free 1-800-998-8800 for free samples or literature.
19-0272; Rev 0; 8/94
PART
MAX338CPE
MAX338CSE
MAX338C/D 0°C to +70°C
0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
Dice*
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
MAX338EPE -40°C to +85°C 16 Plastic DIP
MAX338ESE -40°C to +85°C 16 Narrow SO
MAX338EJE -40°C to +85°C 16 CERDIP
MAX338MJE -55°C to +125°C 16 CERDIP**
Page 2
1.5 5TA= +25°C
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= 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 V-
V+ ............................................................................-0.3V, 44V
GND.........................................................................-0.3V, 25V
Digital Inputs, NO, COM (Note 1)...........(V- - 2V) to (V+ + 2V) or
30mA (whichever occurs first)
Continuous Current (any terminal)......................................30mA
Peak Current, NO or COM
(pulsed at 1ms, 10% duty cycle max) ..........................100mA
Continuous Power Dissipation (TA = +70°C)
Plastic DIP (derate 10.53mW/°C above +70°C) ..........842mW
Narrow SO (derate 8.70mW/°C above +70°C) ............696mW
CERDIP (derate 10.00mW/°C above +70°C)...............800mW
Operating Temperature Ranges
MAX33_C__ ........................................................0°C to +70°C
MAX33_E__......................................................-40°C to +85°C
MAX33_MJE ..................................................-55°C to +125°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
V
COM
= ±10V,
VNO= ±10V,
sequence
each switch
on
VNO= +10V,
V
COM
= ±10V,
V
EN
= 0V
V
COM
= +10V,
VNO= ±10V,
VEN= 0V
INO= 0.2mA,
V
COM
= ±10V
VNO= ±10V,
V
COM
= +10V,
V
EN
= 0V
CONDITIONS
nA
-20 20
I
COM(ON)
COM-On Leakage Current
(Note 5)
-1.65 1.65
-0.05 0.008 0.05
-40 40
-3.25 3.25
-0.05 0.006 0.05
nA
-20 20
I
COM(OFF)
COM-Off Leakage Current
(Note 5)
-1.65 1.65
-0.05 0.005 0.05
-40 40
220 400
-3.25 3.25
-0.05 0.005 0.05
nA
-20 20
I
NO(OFF)
NO-Off Leakage Current
(Note 5)
-1.25 1.25
Ω
500
R
ON
On-Resistance
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
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.
V-15 15
VNO,
V
COM
Analog Signal Range
INO= 0.2mA,
V
COM
= ±10V (Note 4)
Ω
410
∆R
ON
On-Resistance Matching
Between Channels
(Note 3)
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
-0.02 0.001 0.02TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= T
MIN
to T
MAX
MAX339
MAX338
MAX339
MAX338
C, E
M
C, E
M
C, E
M
C, E
M
C, E
M
SWITCH
TA= T
MIN
to T
MAX
15
Page 3
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
Off Isolation
(Note 6)
dB-75V
ISO
1.5 5Q
Charge Injection
(Note 3)
100 500
ns
750
t
ON(EN)
Enable Turn-On Time
160 500
ns10 140t
OPEN
Break-Before-Make Interval
µA-1.0 1.0I
AL
Input Current with
Input Voltage Low
µA-1.0 0.001 1.0I
AH
Input Current with
Input Voltage High
µA
-10 10
I-Negative Supply Current
-1 1
µA
600
I+Positive Supply Current
290 500
V±4.5 ±20Power-Supply Range
50 100
µA
150
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
Crosstalk Between Channels V
CT
-92 dB
Logic Input Capacitance C
IN
2 pF
NO-Off Capacitance C
NO(OFF)
3 pF
11
COM-Off Capacitance C
COM(OFF)
f = 1MHz,
VEN= 0.8V,
V
COM
= 0V,
Figure 8
6
pF
16
COM-On Capacitance C
COM(ON)
f = 1MHz,
VEN= 2.4V,
V
COM
= 0V,
Figure 8
9
pF
TA= +25°C
VEN= 0V or 2.4V,
VA= 0V
TA= +25°C
VA= 2.4V or 15V
TA= +25°C
TA= T
MIN
to T
MAX
TA= T
MIN
to T
MAX
TA= +25°C
TA= +25°C
TA= +25°C
TA= T
MIN
to T
MAX
TA= +25°C
TA= +25°C
TA= T
MIN
to T
MAX
CONDITIONS
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
VEN= 0V,
RL= 1kΩ,
f = 100kHz
CL= 100pF,
VNO= 0V,
RS= 0Ω, Figure 6
Figure 3
VEN= 0V or 2.4V,
V
A(ALL)
= 0V, 2.4V or 5V
Figure 4
VEN= 2.4V,
V
A(ALL)
= 2.4V
VEN= VA= 0V
VEN= 2.4V,
f = 100kHz,
V
GEN
= 1V
P-P
,
RL= 1kΩ, Figure 7
f = 1MHz
f = 1MHz,
VEN= VNO= 0V,
Figure 8
MAX338
MAX339
MAX338
MAX339
ns200 500t
TRANS
Transistion Time TA= +25°CFigure 2
pC
ns
750
t
OFF(EN)
Enable Turn-Off Time
TA= T
MIN
to T
MAX
Figure 3
INPUT
SUPPLY
DYNAMIC
Page 4
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
4 _______________________________________________________________________________________
(Note 3)
CONDITIONS
CL= 100pF,
VNO= 0V,
RS= 0Ω
V
INH
= 2.4V,
V
INL
= 0V,
V
NO1
= 5V,
Figure 3
V
INH
= 2.4V,
V
INL
= 0V,
V
NO1
= 5V,
Figure 3
V
NO1
= 8V,
V
NO8
= 0V,
VIN= 2.4V,
Figure 1
INO= 0.2mA
V
COM
= 3V or 10V
pC1.8 5Q
Charge Injection
(Note 3)
ns110 500t
OFF(EN)
Enable Turn-Off Time
(Note 3)
V012
V
NO
,
V
COM
Analog Signal Range
ns280 500t
ON(EN)
Enable Turn-On Time
(Note 3)
ns210 500t
TRANS
Transition Time
(Note 3)
Ω460 650R
ON
On-Resistance
UNITS
MIN TYP MAX
(Note 2)
SYMBOLPARAMETER
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, GND = 0V, VAH= +2.4V, VAL= +0.8V, TA= T
MIN
to T
MAX
, unless otherwise noted.)
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: Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C.
Note 6: Worst-case isolation is on channel 4 because of its proximity to the drain pin. Off isolation = 20log V
COM/VNO
, where
V
COM
= output and VNO= input to off switch.
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
TA= +25°C
SWITCH
DYNAMIC
Page 5
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
_______________________________________________________________________________________
5
600
ON-RESISTANCE vs. V
COM
(DUAL SUPPLIES)
500
MAX338/9 TOC-01
0
100
200
300
-20 20-15 15-10 10-5 50
400
V
COM
(V)
±5V
±10V
±15V
±20V
R
ON
(Ω)
ON-RESISTANCE vs. V
COM
OVER
TEMPERATURE (DUAL SUPPLIES)
MAX338/9 TOC-02
0
100
200
300
-15 15-10 10-5 50
400
V
COM
(V)
+125°C
+85°C
+25°C
-55°C
R
ON
(Ω)
V+ = +15V
V- = -15V
1200
1400
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
1000
MAX338/9 TOC-03
0
200
400
600
15 201050
800
V
COM
(V)
R
ON
(Ω)
+5V
+12V
+15V
+20V
600
700
ON-RESISTANCE vs. V
COM
OVER
TEMPERATURE (SINGLE SUPPLY)
500
MAX338/9 TOC-04
0
100
200
300
151050
400
V
COM
(V)
R
ON
(Ω)
+125°C
+85°C
+25°C
-55°C
V+ = +15V
V- = 0V
30
CHARGE INJECTION vs. V
COM
20
MAX338/9 TOC-07
-30
-20
-10
0
-15 15-10 10-5 50
10
V
COM
(V)
Q
j
(pC)
CL = 100pF
V- = 0V
±15V
40
+12V
+5V
10
0.0001
-55 125
OFF LEAKAGE vs. TEMPERATURE
1
MAX338/9 TOC-05
TEMPERATURE (°C)
OFF LEAKAGE (nA)
25
0.01
0.001
-35 -15 65
0.1
100
1000
45 85 105
5
I
NO (OFF)
I
COM (OFF)
V+ = +15V
V- = -15V
10
0.0001
-55 125
ON LEAKAGE vs. TEMPERATURE
1
MAX338/9 TOC-06
TEMPERATURE (°C)
ON LEAKAGE (nA)
25
0.01
0.001
-35 -15 65
0.1
100
1000
45 85 105
5
I
COM (ON)
V+ = +15V
V- = -15V
100
0.001
-55 125
SUPPLY CURRENT vs. TEMPERATURE
10
MAX338/9 TOC-08
TEMPERATURE (°C)
I+, I- (µA)
25
0.1
0.01
-35 -15 65145 85 105
5
I-
1000
I+, V
A(ALL)
= 2.4V
I+, VA = 0V
600
1000
900
800
700
TRANSITION TIME vs.
POWER SUPPLIES
500
MAX338/9 TOC-09
0
100
200
300
±15 ±20±10
OR 10V
(SINGLE)
±5
OR 5V
(SINGLE)
0
400
SUPPLY VOLTAGE (V)
t
TRANS
(nS)
SINGLE SUPPLY
DUAL SUPPLIES
RL = 1kΩ
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
Page 6
__________Applications Information
Operation with
Supply Voltages Other than 15V
Using supply voltages less than ±15V will reduce the
analog signal range. The MAX338/MAX339 switches
operate with ±4.5V to ±20V bipolar supplies or with a
+4.5V to +30V single supply. Connect V- to GND when
operating with a single supply. Both device types can
also operate with unbalanced supplies such as +24V
and -5V. The
Typical Operating Characteristics
graphs
show typical on-resistance with 20V, 15V, 10V, and 5V
supplies. (Switching times increase by a factor of two
or more for operation at 5V.)
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maximum ratings, because stresses beyond the listed ratings may cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs NO and COM. If power-supply sequencing
is not possible, add two small signal diodes in series
with supply pins for overvoltage protection (Figure 1).
Adding diodes reduces the analog signal range to 1V
below V+ and 1V above V-, but does not affect the
devices’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V+ and V- should not exceed 44V.
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
6 _______________________________________________________________________________________
______________________________________________________________Pin Description
V
g
NO
COM
V-
V+
Figure 1. Overvoltage Protection Using External Blocking
Diodes
PIN
MAX338 MAX339
NAME FUNCTION
1, 15, 16 A0, A2, A1 Address Inputs
—
—
A0, A1 Address Inputs
2 2 EN Enable Input
3 3 V- Negative Supply Voltage Input
4–7 — NO1–NO4 Analog Inputs—bidirectional
— 4–7 NO1A–NO4A Analog Inputs—bidirectional
8 — COM Analog Output—bidirectional
— 8, 9 COMA, COMB Analog Outputs—bidirectional
9–12 — NO8–NO5 Analog Inputs—bidirectional
— 10–13 NO4B–NO1B Analog Inputs—bidirectional
13 14 V+ Positive Supply Voltage Input
14 15 GND Ground
1, 16
Page 7
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
_______________________________________________________________________________________ 7
______________________________________________Test Circuits/Timing Diagrams
50%
t
TRANS
tr < 20ns
tf < 20ns
V
OUT
+3V
0V
V
NO1
0V
V
NO8
LOGIC
INPUT
SWITCH
OUTPUT
+15V
V
OUT
-15V
GND
V+
A1
V-
A2
A0
EN
NO1
NO2-NO7
NO8
COM
±10V
+10V
50Ω
MAX338
1k
10pF
+15V
V
OUT
-15V
GND
V+
A0
V-
A1
EN
NO1B
NO1A-NO4A
NO4B
COMB
±10V
50Ω
MAX339
1k
10pF
90%
90%
t
TRANS
ON
+10V
ON
50%
t
OFF(EN)
tr < 20ns
tf < 20ns
V
OUT
V
O
+3V
0V
0V
LOGIC
INPUT
SWITCH
OUTPUT
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
A2
EN
NO1
NO2-NO8
COM
-5V
50Ω
MAX338
1k
10pF
90%
10%
t
ON(EN)
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
EN
NO1B
NO1A-NO4A,
NO2B-NO4B,
COMA
COMB
-5V
50Ω
MAX339
1k
35pF
Figure 2. Transition Time
Figure 3. Enable Switching Time
Page 8
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
8 _______________________________________________________________________________________
50%
t
OPEN
tr < 20ns
tf < 20ns
V
OUT
+3V
0V
LOGIC
INPUT
SWITCH
OUTPUT
+15V
V
OUT
-15V
GND
V+
A0
V-
A1
A2
EN
NO1-NO8
COM
+5V
50Ω
MAX338
1k
10pF
80%
+2.4V
0V
∆V
OUT
+3V
0V
LOGIC
INPUT
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
A2
EN
COM
MAX338
CL = 100pF
V
OUT
NO
CHANNEL
SELECT
R
S
V
S
ONOFF OFF
∆V
OUT
IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
Q = C
L
x ∆V
OUT
_________________________________Test Circuits/Timing Diagrams (continued)
Figure 4. Break-Before-Make Interval
Figure 5. Charge Injection
Page 9
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
_______________________________________________________________________________________ 9
+15V
V
OUT
-15V
GND
V+
A1
V-
A0
A2
NO8
COM
MAX338
NO1
R
S
= 50Ω
V
IN
EN
10nF
R
L
1k
OFF ISOLATION = 20log
V
OUT
V
IN
10nF
+15V
-15V
GND
V+
A1
V-
A0
A2
NO8
COM
MAX338
NO2
R
S
= 50Ω
V
OUT
EN
10nF
R
L
=
1k
CROSSTALK = 20log
V
OUT
V
IN
10nF
NO1
+15V
-15V
GND
V+
A2
V-
A1
A0
NO8
MAX338
CHANNEL
SELECT
NO1
COM
EN
Meter
Impedance
Analyzer
f = 1MHz
_________________________________Test Circuits/Timing Diagrams (continued)
Figure 6. Off Isolation Figure 7. Crosstalk
Figure 8. NO/COM Capacitance
Page 10
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
10 ______________________________________________________________________________________
________Pin Configurations/Functional Diagrams/Truth Tables (continued)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A1
GND
V+
NO1B
NO1A
V-
EN
A0
TOP VIEW
MAX339
NO2B
NO3B
N04B
COMB
COMA
NO4A
NO3A
NO2A
DIP/SO
CMOS DECODE LOGIC
A1 A0
EN
NO4B
NO3B
NO2B
NO1B
NO4A
NO3A
NO2A
NO1A
COMA
V+ V-
GND
COMB
MAX339 8-CHANNEL SINGLE-ENDED MULTIPLEXER
A2 A1 A0 EN
ON
SWITCH
X
0
0
0
0
1
1
1
1
X
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
None
1
2
3
4
5
6
7
8
MAX338
LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V
A1 A0 EN
ON
SWITCH
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
None
1
2
3
4
MAX339
LOGIC “0” V
AL
≤ 0.8V, LOGIC “1” VAH ≥ 2.4V
Page 11
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
______________________________________________________________________________________ 11
_Ordering Information (continued)
* Contact factory for dice specifications.
** Contact factory for availability.
16 CERDIP**-55°C to +125°CMAX339MJE
16 CERDIP-40°C to +85°CMAX339EJE
16 Narrow SO-40°C to +85°CMAX339ESE
16 Plastic DIP-40°C to +85°CMAX339EPE
Dice*
16 Narrow SO
16 Plastic DIP
PIN-PACKAGETEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°CMAX339C/D
MAX339CSE
MAX339CPE
PART
Page 12
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12
__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600
© 1994 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
__________________________________________________________Chip Topographies
V+
NO3
EN
0.114"
(2.89mm)
0.078"
(1.98mm)
COM NO8
NO5
NO6
N07
A0 A1
A2
GND
NO2
NO1
V-
N.C.
NO4
V+
NO3A
EN
0.114"
(2.89mm)
0.078"
(1.98mm)
COMA COMB
NO1B
NO2B
N04B
A0 A1
N.C.
GND
NO2A
NO1A
V-
NO3B
NO4A
TRANSISTOR COUNT: 224
SUBSTRATE IS INTERNALLY CONNECTED TO V+
TRANSISTOR COUNT: 224
SUBSTRATE IS INTERNALLY CONNECTED TO V+
MAX338
MAX339
N.C. = NO INTERNAL CONNECTION
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