19-0272; Rev 4; 4/12
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
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, 4-
channel 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-resis-
tance, 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 tem-
perature range and over the ±4.5V to ±18V supply
range. These parts are fabricated with Maxim’s 44V sili-
con-gate process.
____________________________Features
o
On-Resistance, <400Ω max
o
Transition Time, <500ns
o
On-Resistance Match, <10Ω
o
NO-Off Leakage Current, <20pA at +25°C
o
1.5pC Charge Injection
o
Single-Supply Operation (+4.5V to +30V)
Bipolar-Supply Operation (±4.5V to ±20V)
o
Plug-In Upgrade for Industry-Standard
DG508A/DG509A
o
Rail-to-Rail Signal Handling
o
TTL/CMOS-Logic Compatible
o
ESD Protection >2000V, per Method 3015.7
MAX338/MAX339
Ordering Information
PART
MAX338CEE+
MAX338CPE+
MAX338CSE+
MAX338C/D
MAX338EEE+
MAX338ETE+
TEMP RANGE
0°C to +70°C
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
PIN-PACKAGE
16 QSOP
16 PDIP
16 Narrow SO
Dice*
16 QSOP
16 TQFN-EP**
(5mm x 5mm)
________________________Applications
Data-Acquisition Systems
Test Equipment
Military Radios
Guidance and Control Systems
Sample-and-Hold Circuits
Heads-Up Displays
Communications Systems
PBX, PABX
Ordering Information continued at end of data sheet.
*Contact
factory for dice specifications.
**EP
= Exposed Pad
***Contact
factory for availability.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
_____________________Pin Configurations/Functional Diagrams/Truth Tables
TOP VIEW
A0
EN
V-
NO1
V+
V-
GND
1
2
3
4
16 A1
15
A2
14
GND
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
CMOS DECODE LOGIC
COM
MAX338
13
V+
12
NO5
11
NO6
10
NO7
9
NO8
NO2
5
NO3
6
NO4
7
COM
8
DIP/SO/QSOP
A2
A1
A0
EN
Pin Configurations/Functional Diagrams/Truth Tables
continued at end of data sheet.
MAX338 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 Maxim’s website at www.maxim-ic.com.
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
MAX338/MAX339
ABSOLUTE MAXIMUM RATINGS
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
16 QSOP (derate 8.3mW/°C above +70°C) ..............666.7mW
Note 1:
16-Pin TQFN (derate 20.8mW/°C above +70°C) ....1666.7mW
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, MSE .........................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Soldering Temperature (reflow)
Lead(Pb)-free packages..............................................+260°C
Packages containing lead(Pb).....................................+240°C
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 CHARACTERISTICS—Dual Supplies
(V+ = +15V, V- = -15V, V
GND
= 0V, V
AH
= +2.4V, V
AL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
On-Resistance
On-Resistance Matching
Between Channels
NO-Off Leakage Current
(Note 5)
V
NO
,
V
COM
R
ON
∆R
ON
(Note 3)
I
NO
= 0.2mA,
V
COM
= ±10V
I
NO
= 0.2mA,
V
COM
= ±10V (Note 4)
V
COM
= +10V,
V
NO
= ±10V,
V
EN
= 0V
V
NO
= ±10V,
V
COM
= +10V, MAX338
V
EN
= 0V
I
COM(OFF)
V
NO
= +10V,
V
COM
= ±10V, MAX339
V
EN
= 0V
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
COM-On Leakage Current
(Note 5)
V
COM
= ±10V, MAX338
V
NO
= ±10V,
sequence
each switch
MAX339
on
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
C, E
M
C, E
M
C, E
M
C, E
M
C, E
M
-0.02
-1.25
-20
-0.05
-3.25
-40
-0.05
-1.65
-20
-0.05
-3.25
-40
-0.05
-1.65
-20
0.008
0.006
0.005
0.005
0.001
4
1.5
-15
220
15
400
500
10
5
15
0.02
1.25
20
0.05
3.25
40
0.05
1.65
20
0.05
3.25
40
0.05
1.65
20
nA
nA
nA
V
Ω
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
I
NO(OFF)
COM-Off Leakage Current
(Note 5)
I
COM(ON)
2
_______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
(V+ = +15V, V- = -15V, V
GND
= 0V, V
AH
= +2.4V, V
AL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
INPUT
Input Current with
Input Voltage High
Input Current with
Input Voltage Low
SUPPLY
Power-Supply Range
V
EN
= V
A
= 0V
Positive Supply Current
I+
V
EN
= 2.4V,
V
A(ALL)
= 2.4V
V
EN
= 0V or 2.4V,
V
A(ALL)
= 0V, 2.4V or 5V
Figure 2
Figure 4
Figure 3
Figure 3
C
L
= 100pF,
V
NO
= 0V,
R
S
= 0Ω, Figure 6
V
EN
= 0V,
R
L
= 1kΩ,
f = 100kHz
V
EN
= 2.4V,
f = 100kHz,
V
GEN
= 1V
P-P
,
R
L
= 1kΩ, Figure 7
f = 1MHz
f = 1MHz,
V
EN
= V
NO
= 0V,
Figure 8
MAX338
T
A
= +25°C
MAX339
MAX338
T
A
= +25°C
MAX339
9
6
16
pF
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
T
A
= T
MIN
to T
MAX
T
A
= +25°C
I
AH
I
AL
V
A
= 2.4V or 15V
V
EN
= 0V or 2.4V,
V
A
= 0V
-1.0
-1.0
0.001
1.0
1.0
µA
µA
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
MAX338/MAX339
±4.5
50
290
-1
-10
200
140
160
100
Negative Supply Current
DYNAMIC
Transistion Time
Break-Before-Make Interval
Enable Turn-On Time
Enable Turn-Off Time
Charge Injection
(Note 3)
Off Isolation
(Note 6)
I-
±20
100
150
500
600
1
10
500
500
750
500
750
5
V
µA
µA
µA
t
TRANS
t
OPEN
t
ON(EN)
t
OFF(EN)
10
ns
ns
ns
ns
Q
1.5
pC
V
ISO
T
A
= +25°C
-75
dB
Crosstalk Between Channels
V
CT
C
IN
C
NO(OFF)
T
A
= +25°C
T
A
= +25°C
T
A
= +25°C
-92
dB
Logic Input Capacitance
NO-Off Capacitance
2
3
11
pF
pF
COM-Off Capacitance
COM-On Capacitance
f = 1MHz,
V
EN
= 0.8V,
C
COM(OFF)
V
COM
= 0V,
Figure 8
f = 1MHz,
V
EN
= 2.4V,
C
COM(ON)
V
COM
= 0V,
Figure 8
pF
_______________________________________________________________________________________
3
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
MAX338/MAX339
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, V
GND
= 0V, V
AH
= +2.4V, V
AL
= +0.8V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.)
PARAMETER
SWITCH
Analog Signal Range
On-Resistance
DYNAMIC
Transition Time
(Note 3)
t
TRANS
V
NO1
= 8V,
V
NO8
= 0V,
V
IN
= 2.4V,
Figure 1
V
INH
= 2.4V,
V
INL
= 0V,
V
NO1
= 5V,
Figure 3
V
INH
= 2.4V,
V
INL
= 0V,
V
NO1
= 5V,
Figure 3
C
L
= 100pF,
V
NO
= 0V,
R
S
= 0Ω
T
A
= +25°C
210
500
ns
V
NO
,
V
COM
R
ON
(Note 3)
I
NO
= 0.2mA
V
COM
= 3V or 10V
T
A
= +25°C
0
460
12
650
V
Ω
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
Enable Turn-On Time
(Note 3)
t
ON(EN)
T
A
= +25°C
280
500
ns
Enable Turn-Off Time
(Note 3)
Charge Injection
(Note 3)
t
OFF(EN)
T
A
= +25°C
110
500
ns
Q
T
A
= +25°C
1.8
5
pC
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
/V
NO
, where
V
COM
= output and V
NO
= input to off switch.
4
_______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
MAX338/MAX339
ON-RESISTANCE vs. V
COM
(DUAL SUPPLIES)
MAX338/9 TOC-01
ON-RESISTANCE vs. V
COM
OVER
TEMPERATURE (DUAL SUPPLIES)
V+ = +15V
V- = -15V
+125°C
300
+85°C
R
ON
(Ω)
200
-55°C
100
+25°C
R
ON
(Ω)
800
600
MAX338/9 TOC-02
ON-RESISTANCE vs. V
COM
(SINGLE SUPPLY)
MAX338/9 TOC-03
600
500
400
R
ON
(Ω)
300
200
100
0
-20
±5V
400
1400
1200
1000
+5V
±10V
±15V
+12V
400
200
±20V
+15V
+20V
0
-15
-10
-5
0
V
COM
(V)
5
10
15
20
-15
-10
-5
0
V
COM
(V)
5
10
15
0
0
5
10
V
COM
(V)
15
20
ON-RESISTANCE vs. V
COM
OVER
TEMPERATURE (SINGLE SUPPLY)
MAX338/9 TOC-04
OFF LEAKAGE vs. TEMPERATURE
MAX338/9 TOC-05
ON LEAKAGE vs. TEMPERATURE
V+ = +15V
V- = -15V
MAX338/9 TOC-06
700
600
500
R
ON
(Ω)
400
300
200
100
0
0
5
V
COM
(V)
10
V+ = +15V
V- = 0V
+125°C
+85°C
+25°C
-55°C
1000
100
OFF LEAKAGE (nA)
10
1
0.1
0.01
0.001
0.0001
I
NO (OFF)
I
COM (OFF)
V+ = +15V
V- = -15V
1000
100
ON LEAKAGE (nA)
10
1
0.1
0.01
0.001
0.0001
I
COM(ON)
15
-55 -35 -15
5
25 45
65
85 105 125
-55 -35 -15
5
25 45
65
85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE INJECTION vs. V
COM
MAX338/9 TOC-07
SUPPLY CURRENT vs. TEMPERATURE
MAX338/9 TOC-08
TRANSITION TIME vs.
POWER SUPPLIES
900
800
700
t
TRANS
(nS)
600
500
400
300
DUAL SUPPLIES
SINGLE SUPPLY
R
L
= 1kΩ
MAX338/9 TOC-09
40
30
20
Q
j
(pC)
10
0
-10
-20
-30
-15
-10
-5
0
V
COM
(V)
5
10
15
C
L
= 100pF
V- = 0V
±15V
+5V
+12V
1000
I+, V
A(ALL)
= 2.4V
100
10
I+, I- (µA)
1
0.1
I-
0.01
0.001
-55 -35 -15
5
25 45
65
I+, V
A
= 0V
1000
200
100
0
85 105 125
0
±5
OR 5V
(SINGLE)
TEMPERATURE (°C)
±10
OR 10V
(SINGLE)
±15
±20
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
5
无线连接
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
