MAXIM MAX338EPE

19-0272; Rev 0; 8/94
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
________________________Applications
Data-Acquisition Systems
Sample-and-Hold Circuits
Test Equipment
Heads-Up Displays
Military Radios
Communications Systems
____________________________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
PART
TEMP. RANGE
MAX338CPE
0°C to +70°C
16 Plastic DIP
PIN-PACKAGE
MAX338CSE
MAX338C/D
MAX338EPE
MAX338ESE
MAX338EJE
MAX338MJE
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
-55°C to +125°C
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP**
Ordering Information continued at end of data sheet.
* Contact factory for dice specifications.
** Contact factory for availability.
Guidance and Control Systems
PBX, PABX
_____________________Pin Configurations/Functional Diagrams/Truth Tables
V+
V-
GND
TOP VIEW
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
MAX338
NO1 4
COM 8
9
DIP/SO
Continued at end of data sheet.
NO2
NO3
COM
NO8
CMOS DECODE LOGIC
NO8
A2
A1
A0
EN
MAX338 8-CHANNEL SINGLE-ENDED MULTIPLEXER
________________________________________________________________ Maxim Integrated Products
Call toll free 1-800-998-8800 for free samples or literature.
1
MAX338/MAX339
_______________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.
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to VV+ ............................................................................-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
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.
Note 1:
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, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
MIN
CONDITIONS
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
On-Resistance
VNO,
VCOM
RON
On-Resistance Matching
Between Channels
∆RON
NO-Off Leakage Current
(Note 5)
INO(OFF)
COM-Off Leakage Current
(Note 5)
(Note 3)
-15
INO = 0.2mA,
VCOM = ±10V
TA = +25°C
INO = 0.2mA,
VCOM = ±10V (Note 4)
TA = +25°C
VCOM = +10V,
VNO = ±10V,
VEN = 0V
TA = +25°C
VNO = ±10V,
VCOM = +10V, MAX338
VEN = 0V
TA = +25°C
VNO = +10V,
VCOM = ±10V, MAX339
VEN = 0V
TA = +25°C
ICOM(OFF)
220
TA = TMIN to TMAX
TA = TMIN
to TMAX
1.5
4
TA = TMIN
to TMAX
TA = TMIN
to TMAX
M
M
2
ICOM(ON)
VCOM = ±10V, MAX338
VNO = ±10V,
sequence
each switch
MAX339
on
TA = TMIN
to TMAX
M
20
C, E
M
M
Ω
Ω
nA
0.05
3.25
40
0.005
-1.65
0.05
nA
1.65
-20
20
0.006
-3.25
0.05
3.25
-40
-0.05
C, E
0.005
-40
-0.05
TA = +25°C
TA = TMIN
to TMAX
1.25
-3.25
V
0.02
-20
-0.05
C, E
0.001
-1.25
-0.05
C, E
10
5
15
-0.02
C, E
400
500
TA = TMIN to TMAX
TA = +25°C
COM-On Leakage Current
(Note 5)
15
40
0.008
0.05
-1.65
1.65
-20
20
_______________________________________________________________________________________
nA
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
(V+ = +15V, V- = -15V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
INPUT
Input Current with
Input Voltage High
IAH
VA = 2.4V or 15V
-1.0
Input Current with
Input Voltage Low
IAL
VEN = 0V or 2.4V,
VA = 0V
-1.0
SUPPLY
Power-Supply Range
±4.5
VEN = VA = 0V
Positive Supply Current
Negative Supply Current
I+
I-
VEN = 2.4V,
VA(ALL) = 2.4V
VEN = 0V or 2.4V,
VA(ALL) = 0V, 2.4V or 5V
DYNAMIC
Transistion Time
Break-Before-Make Interval
tTRANS
tOPEN
Figure 2
Figure 4
Enable Turn-On Time
tON(EN)
Figure 3
Enable Turn-Off Time
tOFF(EN)
Figure 3
Charge Injection
(Note 3)
0.001
Q
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = +25°C
TA = +25°C
TA = TMIN to TMAX
TA = +25°C
TA = TMIN to TMAX
50
290
-1
-10
10
200
140
160
100
CL = 100pF,
VNO = 0V,
RS = 0Ω, Figure 6
TA = +25°C
1.5
1.0
µA
1.0
µA
±20
100
150
500
600
1
10
V
500
500
750
500
750
5
µA
µA
µA
ns
ns
ns
ns
pC
Off Isolation
(Note 6)
VISO
VEN = 0V,
RL = 1kΩ,
f = 100kHz
TA = +25°C
-75
dB
Crosstalk Between Channels
VCT
VEN = 2.4V,
f = 100kHz,
VGEN = 1VP-P,
RL = 1kΩ, Figure 7
TA = +25°C
-92
dB
Logic Input Capacitance
CIN
f = 1MHz
TA = +25°C
2
pF
f = 1MHz,
VEN = VNO = 0V,
Figure 8
TA = +25°C
3
pF
NO-Off Capacitance
COM-Off Capacitance
COM-On Capacitance
CNO(OFF)
f = 1MHz,
VEN = 0.8V,
VCOM = 0V,
Figure 8
f = 1MHz,
VEN = 2.4V,
CCOM(ON)
VCOM = 0V,
Figure 8
MAX338
CCOM(OFF)
11
TA = +25°C
MAX339
pF
6
MAX338
16
TA = +25°C
MAX339
pF
9
_______________________________________________________________________________________
3
MAX338/MAX339
ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
ELECTRICAL CHARACTERISTICS—Single Supply
(V+ = +12V, V- = 0V, GND = 0V, VAH = +2.4V, VAL = +0.8V, TA = TMIN to TMAX, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
(Note 2)
UNITS
SWITCH
Analog Signal Range
On-Resistance
VNO,
VCOM
RON
(Note 3)
INO = 0.2mA
VCOM = 3V or 10V
0
12
V
TA = +25°C
460
650
Ω
TA = +25°C
210
500
ns
TA = +25°C
280
500
ns
TA = +25°C
110
500
ns
TA = +25°C
1.8
5
pC
DYNAMIC
Transition Time
(Note 3)
tTRANS
Enable Turn-On Time
(Note 3)
tON(EN)
Enable Turn-Off Time
(Note 3)
tOFF(EN)
Charge Injection
(Note 3)
Q
VNO1 = 8V,
VNO8 = 0V,
VIN = 2.4V,
Figure 1
VINH = 2.4V,
VINL = 0V,
VNO1 = 5V,
Figure 3
VINH = 2.4V,
VINL = 0V,
VNO1 = 5V,
Figure 3
CL = 100pF,
VNO = 0V,
RS = 0Ω
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: ∆RON = RON(MAX) - RON(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 VCOM/VNO, where
VCOM = output and VNO = input to off switch.
4
_______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
ON-RESISTANCE vs. VCOM
(DUAL SUPPLIES)
V+ = +15V
V- = -15V
+125°C
1200
300
RON (Ω)
±15V
300
+25°C
200
200
600
+12V
+15V
400
100
100
+20V
200
0
0
-5
0
5
10
15
20
-15
-10
-5
VCOM (V)
+125°C
+85°C
+25°C
300
-55°C
200
V+ = +15V
V- = -15V
1
ICOM (OFF)
0.1
15
V+ = +15V
V- = -15V
100
1
0.1
ICOM (ON)
INO (OFF)
0.001
0.0001
-55 -35 -15
5
25 45
65
-55 -35 -15
85 105 125
25 45
5
85 105 125
65
VCOM (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
CHARGE INJECTION vs. VCOM
SUPPLY CURRENT vs. TEMPERATURE
TRANSITION TIME vs.
POWER SUPPLIES
100
±15V
I+, I- (µA)
+12V
0
800
700
1
0.1
-10
-20
-30
0.001
SINGLE SUPPLY
600
500
400
300
I0.01
RL = 1kΩ
900
10
+5V
10
I+, VA = 0V
1000
tTRANS (nS)
20
I+, VA(ALL) = 2.4V
MAX338/9 TOC-09
CL = 100pF
V- = 0V
MAX338/9 TOC-08
1000
MAX338/9 TOC-07
40
20
10
0.01
0.0001
10
15
ON LEAKAGE vs. TEMPERATURE
10
0.001
30
10
1000
0.01
0
5
5
VCOM (V)
MAX338/9 TOC-05
100
100
0
0
15
OFF LEAKAGE vs. TEMPERATURE
OFF LEAKAGE (nA)
V+ = +15V
V- = 0V
400
10
1000
MAX338/9 TOC-04
700
500
5
VCOM (V)
ON-RESISTANCE vs. VCOM OVER
TEMPERATURE (SINGLE SUPPLY)
600
0
MAX338/9 TOC-06
-15 -10
ON LEAKAGE (nA)
0
-20
RON (Ω)
800
-55°C
±20V
Qj (pC)
+5V
1000
+85°C
±10V
RON (Ω)
RON (Ω)
400
MAX338/9 TOC-03
±5V
1400
MAX338/9 TOC-02
400
MAX338/9 TOC-01
600
500
ON-RESISTANCE vs. VCOM
(SINGLE SUPPLY)
ON-RESISTANCE vs. VCOM OVER
TEMPERATURE (DUAL SUPPLIES)
DUAL SUPPLIES
200
100
-15
-10
-5
0
VCOM (V)
5
10
15
0
-55 -35 -15
5
25 45
65
TEMPERATURE (°C)
85 105 125
0
±5
OR 5V
±10
OR 10V
(SINGLE)
(SINGLE)
±15
±20
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
5
MAX338/MAX339
__________________________________________Typical Operating Characteristics
(TA = +25°C, unless otherwise noted.)
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
______________________________________________________________Pin Description
PIN
MAX338
MAX339
NAME
FUNCTION
1, 15, 16
—
A0, A2, A1
Address Inputs
—
1, 16
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
__________Applications Information
V+
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.
6
NO
COM
Vg
V-
Figure 1. Overvoltage Protection Using External Blocking
Diodes
_______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
+15V
V+
NO1
A2
A1
±10V
NO2-NO7
A0
MAX338
NO8
EN
+10V
COM
GND
VOUT
V-
LOGIC
INPUT
10pF
50Ω
-15V
VNO1
SWITCH
OUTPUT
VOUT
V+
NO1B
A1
50%
0V
1k
+15V
±10V
90%
0V
A0
90%
NO1A-NO4A
VNO8
NO4B
MAX339
EN
+10V
ON
VOUT
50Ω
tTRANS
tTRANS
COMB
V-
GND
tr < 20ns
tf < 20ns
+3V
ON
10pF
1k
-15V
Figure 2. Transition Time
+15V
V+
EN
NO1
-5V
NO2-NO8
A0
MAX338
A1
A2
COM
GND
50Ω
VOUT
V-
10pF
1k
LOGIC
INPUT
V+
NO1B
10%
SWITCH
OUTPUT
VOUT
-5V
NO1A-NO4A,
NO2B-NO4B,
COMA
90%
VO
MAX339
A1
50Ω
tOFF(EN)
0V
+15V
A0
50%
0V
tON(EN)
-15V
EN
tr < 20ns
tf < 20ns
+3V
GND
COMB
V-
VOUT
1k
35pF
-15V
Figure 3. Enable Switching Time
_______________________________________________________________________________________
7
MAX338/MAX339
______________________________________________Test Circuits/Timing Diagrams
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
_________________________________Test Circuits/Timing Diagrams (continued)
+15V
+2.4V
V+
EN
NO1-NO8
LOGIC
INPUT
+5V
tr < 20ns
tf < 20ns
+3V
50%
0V
A0
A1
VOUT
MAX338
80%
A2
COM
GND
SWITCH
OUTPUT
VOUT
V-
10pF
tOPEN
0V
1k
50Ω
-15V
Figure 4. Break-Before-Make Interval
+15V
RS
V+
NO
LOGIC
INPUT
EN
VS
CHANNEL
SELECT
OFF
ON
OFF
0V
A0
COM
A1
A2
+3V
VOUT
MAX338
CL = 100pF
GND
V-
∆VOUT
VOUT
∆VOUT IS THE MEASURED VOLTAGE DUE TO CHARGE TRANSFER
ERROR Q WHEN THE CHANNEL TURNS OFF.
-15V
Q = CL x ∆VOUT
Figure 5. Charge Injection
8
_______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
+15V
+15V
VOUT
VIN
V+
NO1
RS = 50Ω
A1
A2
COM
MAX338
EN
GND
10nF
OFF ISOLATION = 20log
V+
NO1
NO2
NO8
A0
10nF
10nF
VOUT
RL=
1k
NO8
RS = 50Ω
A0
MAX338
COM
A1
RL
1k
A2
V-
GND
EN
10nF
-15V
VOUT
VIN
CROSSTALK = 20log
Figure 6. Off Isolation
V-
-15V
VOUT
VIN
Figure 7. Crosstalk
+15V
V+
NO1
A2
CHANNEL
SELECT
Meter
MAX338
A1
NO8
A0
GND
EN
COM
V-
Impedance
Analyzer
f = 1MHz
-15V
Figure 8. NO/COM Capacitance
_______________________________________________________________________________________
9
MAX338/MAX339
_________________________________Test Circuits/Timing Diagrams (continued)
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
________Pin Configurations/Functional Diagrams/Truth Tables (continued)
TOP VIEW
V+
16 A1
EN 2
15 GND
V- 3
14 V+
NO3A
MAX339
GND
NO1A
A0 1
NO1A 4
V-
NO2A
13 NO1B
NO4A
NO2A 5
12 NO2B
NO1B
NO3A 6
11 NO3B
NO4A 7
10 N04B
COMA
NO2B
COMB
NO3B
COMA 8
9
COMB
NO4B
DIP/SO
CMOS DECODE LOGIC
A1
EN
A0
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
10
A1
A0
EN
ON
SWITCH
X
X
0
None
0
0
1
1
0
1
1
2
1
0
1
3
1
1
1
4
MAX339
LOGIC “0” VAL ≤ 0.8V, LOGIC “1” VAH ≥ 2.4V
______________________________________________________________________________________
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
TEMP. RANGE
PIN-PACKAGE
MAX339CPE
PART
0°C to +70°C
16 Plastic DIP
MAX339CSE
MAX339C/D
MAX339EPE
MAX339ESE
MAX339EJE
MAX339MJE
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
-55°C to +125°C
16 Narrow SO
Dice*
16 Plastic DIP
16 Narrow SO
16 CERDIP
16 CERDIP**
MAX338/MAX339
_Ordering Information (continued)
* Contact factory for dice specifications.
** Contact factory for availability.
______________________________________________________________________________________
11
MAX338/MAX339
8-Channel/Dual 4-Channel,
Low-Leakage, CMOS Analog Multiplexers
__________________________________________________________Chip Topographies
MAX338
EN
A0
A1
A2
MAX339
EN
GND
A0
A1
N.C. GND
V+
V+
V-
VNO1
NO5
NO1A
NO1B
NO2
NO6
NO2A
NO2B
NO3
N.C.
0.114"
(2.89mm)
NO3A
NO3B
0.114"
(2.89mm)
NO4
N07
NO4A
N04B
COMA COMB
COM NO8
0.078"
(1.98mm)
0.078"
(1.98mm)
N.C. = NO INTERNAL CONNECTION
TRANSISTOR COUNT: 224
SUBSTRATE IS INTERNALLY CONNECTED TO V+
TRANSISTOR COUNT: 224
SUBSTRATE IS INTERNALLY CONNECTED TO V+
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implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
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