MAX328ETE+ [MAXIM]
Ultra-Low Leakage Monolithic CMOS Analog Multiplexers;
| 型号： | MAX328ETE+ |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Ultra-Low Leakage Monolithic CMOS Analog Multiplexers |
| 文件： | 总10页 (文件大小：175K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-1006; Rev 3; 2/11
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8/MAX329
General Description
The MAX328/MA329 are monolithic CMOS analog multi-
plexers. The MAX328 is a single-ended, 1-of-8 device,
and the MAX329 is a differential, 2-of-8 device.
Features
o Ultra-Low Off- and On-Leakage: 1pA Typ
o Bidirectional Operation (Use as Mux or Demux)
o TTL and CMOS Logic Compatibility
Designed to provide the lowest possible on- and off-
leakages, these multiplexers switch signals from high
source impedance, providing the mux operates into a
high-input-impedance op amp or A/D converter. The
MAX328/MAX329 are pin-for-pin replacements for the
popular DG508/DG509 in these applications.
o Analog-Signal Range Includes Power-Supply Rails
o Switching Speeds Less Than 1.5µs
o Pin Compatible with DG508/DG509 and
MAX358/MAX359
o Latchup Proof Construction
Adding an external 40kΩ resistor to each input makes
the MAX328/MAX329 an excellent fault-tolerant multi-
plexer. Low leakage (less than 1pA at +25°C) and
2.5kΩ on-resistance allow the circuit to sustain 110V
AC faults indefinitely while maintaining an error of less
than 40nV for normal signals (i.e., 1pA times 40kΩ).
The MAX328/MAX329 work equally well with a single
supply of 10V to 30V or dual supplies of 5V to 18V.
They also perform well with unbalanced combinations of
supply voltage, such as +12V and -5V or +5V and -15V.
Low power dissipation (1.9mW with 15V supplies)
allows use in portable applications.
Ordering Information
PART
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
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
16 CERDIP
MAX328CPE+
MAX328CWE+
MAX328CJE
MAX328C/D
MAX328ETE+
MAX328EPE+
MAX328EWE+
MAX328EJE
MAX328MJE
Dice*
16 TQFN-EP**
16 Plastic DIP
16 Wide SO
16 CERDIP***
16 CERDIP***
Applications
Control Systems
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Contact factory for dice specifications.
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
**EP = Exposed pad.
***Contact factory for availability. Substrate may be allowed to
be unconnected or be connected to V+.
Ordering Information continued at end of data sheet.
Typical Operating Circuit
Pin Configurations
1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY
+15V
V+
-15V
V-
TOP VIEW
GND
40kΩ
1/2W
ANALOG
INPUT
+
OP
AMP
+
S1
OUT
A0
A0
1
2
3
4
5
6
7
8
16 A1
15 A2
14 GND
13 V+
12 S5
11 S6
10 S7
1
2
3
4
5
6
7
8
16 A1
MAX328
D
40kΩ
1/2W
EN
V-
S1
S2
S3
S4
D
EN
V-
15 GND
14 V+
ANALOG
INPUT
i BIAS < 1pA
S8
A0 A1 A2 EN
+15V
V+
MAX328
S1A
S2A
S3A
S4A
DA
MAX329
13 S1B
12 S2B
11 S3B
10 S4B
Q
B
CLK IN
N.C.
BIN
AIN
Q
Q
C
O
DM7493
9
S8
9
DB
Q
N.C.
A
V
V
02
GND
01
DIP/SO
DIP/SO
+15V
EN IN
(MUX ON/OFF CONTROL)
Pin Configurations continued at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
Voltage Referenced to V-
Power Dissipation (Package) (Note 1)
V+ ........................................................................................+44V
GND.....................................................................................+25V
CERDIP (derate 10mW/°C above +70°C) .....................800mW
PDIP (derate 10.5mW/°C above +70°C) ....................842.1mW
Wide SO (derate 14.3mW/°C above +70°C)............1142.9mW
TQFN (derate 33.3mW/°C above +70°C) .................2666.7mw
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
Digital Inputs (Note 1), V , V ............................-2V to (V+ + 2V)
S
D
Current (Any Terminal, Except S or D)................................30mA
Continuous Current, S or D
(pulsed at 1ms, 10% duty cycle max)..............................40mA
Operating Temperature Range
MAX328/329 C _ _................................................0°C to +70°C
MAX328/329 E _ _.............................................-40°C to +85°C
MAX328/329 M _ _..........................................-55°C to +125°C
Lead(Pb)-free packages (PDIP, TQFN, Wide SO) ........+260°C
Packages containing lead(Pb) (CERDIP, PDIP, Wide SO)..+240°C
Packages containing lead(Pb) (TQFN) .........................+260°C
Note 1: All leads soldered or welded to PC board.
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.
8/MAX329
ELECTRICAL CHARACTERISTICS
(V+ = 15V, V- = -15V, V
= 0V, T = +25°C, unless otherwise noted.) (Note 2)
A
GND
MAX328M
MAX329M
MAX328C/E
MAX329C/E
PARAMETER
SYMBOL
CONDITIONS
UNITS
MIN
TYP MAX MIN TYP MAX
SWITCH
Analog Signal Range
V
-15
+15
2.5
-15
+15
3.5
V
ANALOG
V
= 10V,
= 100µA
D
Seq. each
switch on,
1.5
1.0
1.5
1.0
I
S
Drain-Source
On-Resistance
R
kꢀ
DS(ON)
V
AL
= 0.8V,
= 2.4V
V
D
= -10V,
= 100µA
2.5
3.5
V
AH
I
S
Greatest Change in
Drain-Source On-
Resistance Between
Channels
R
=
DS(ON)
R
Max - R
Min
DS(ON)
DS(ON)
ꢁR
2
2
%
DS(ON)
(
)
R
Ave
DS(ON)
V
V
V
V
V
V
= 10V, V = -10V
0.1
0.3
0.3
1.0
0.3
0.5
3.0
2.0
1.5
1.0
10
10
10
10
10
10
10
10
10
10
0.1
0.3
0.3
1.0
0.3
0.5
3.0
2.0
1.5
1.0
10
10
10
10
10
10
10
10
10
10
Source Off-Leakage
Current (Note 3)
S
S
D
I
V
= 0V
pA
S(OFF)
EN
EN
= -10V, V = 10V
D
= 10V, V = -10V
D
D
D
D
S
Drain Off-
MAX328
= -10V, V = 10V
Leakage
Current
S
I
V
= 0V
pA
pA
D(OFF)
= 10V, V = -10V
S
MAX329
(Note 3)
= -10V, V = 10V
S
V (all) = V = 10V
S
D
Drain On-
MAX328
Seq. each
switch on,
V (all) = V = -10V
Leakage
Current
S
D
I
D(ON)
V
V
= 0.8V,
= 2.4V
V (all) = V = 10V
AL
S
D
MAX329
(Note 3)
AH
V (all) = V = -10V
S
D
2
_______________________________________________________________________________________
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8/MAX329
ELECTRICAL CHARACTERISTICS (continued)
(V+ = 15V, V- = -15V, V
= 0V, T = +25°C, unless otherwise noted.) (Note 2)
A
GND
MAX328M
MAX329M
MAX328C/E
MAX329C/E
PARAMETER
INPUT
SYMBOL
CONDITIONS
UNITS
MIN
TYP MAX MIN TYP MAX
V
V
V
V
= 2.4V
= 15V
0.001
0.001
0.001
0.001
1
1
1
1
0.001
0.001
0.001
0.001
1
1
1
1
Address Input Current,
Input Voltage High
A
I
µA
µA
AH
A
= 2.4V
= 0V
Address Input Current,
Input Voltage Low
EN
EN
All
I
AL
V
A
= 0V
DYNAMIC
Switching Time of
Multiplexer
t
Figure 1
Figure 2
1.0
1.5
µs
µs
TRANSITION
Break-Before-Make
Interval
0.2
0.2
t
OPEN
Enable Turn-On Time
Enable Turn-Off Time
t
Figure 3
Figure 3
1.0
0.7
1.5
1.0
µs
µs
ON(EN)
t
OFF(EN)
V
V
= 0V, R = 1kꢀ, C = 15pF,
L L
EN
Off-Isolation
OIRR
84
84
dB
pF
pF
= 7V
, f = 500kHz
RMS
S
V
= 0V,
EN
Source Off-Capacitance
C
S(OFF)
V
V
= 0V
= 0V
1.8
1.8
S
f = 1MHz
MAX328
MAX329
8.0
4.0
1
8.0
4.0
1
Drain Off-
Capacitance
V
EN
f = 1MHz
= 0V,
C
D(OFF)
D
V
A
V
A
V
A
= 10V
= 0V
Charge Injection
(Note 4)
Q
(INJ)
pc
2
5
2
5
= -10V
4
4
SUPPLY
Positive Supply Current
Negative Supply Current
I+
I-
V
V
= 2.4V
= 2.4V
V
V
= 0V/5V
= 0V/5V
4.5
1
200
4.5
1
200
µA
µA
EN
EN
A
-100
-100
A
Power-Supply Range for
Continuous Operation
(Note 7)
V
5
18
5
18
V
OP
_______________________________________________________________________________________
3
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
ELECTRICAL CHARACTERISTICS (Overtemperature)
(V+ = 15V, V- = -15V, V
= 0V, T = T
to T , unless otherwise noted.) (Note 2)
MAX
GND
A
MIN
MAX328M
MAX329M
MAX328C/E
MAX329C/E
UNITS
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX MIN
TYP MAX
SWITCH
Analog-Signal Range
V
-15
+15
4
-15
+15
5
V
ANALOG
V
= 10V,
= 100µA
D
Seq. each
switch on,
2.2
1.5
1.9
1.2
I
S
Drain-Source
On-Resistance
R
kꢀ
DS(ON)
V
V
= 0.8V,
= 2.4V
AL
V
D
= -10V,
= 100µA
4
5
AH
I
S
V
V
V
V
V
V
= 10V, V = -10V
5
5
Source Off-Leakage
Current (Note 6)
S
S
D
I
V
V
= 0V
nA
nA
S(OFF)
EN
EN
= -10V, V = 10V
5
5
D
8/MAX329
= 10V, V = -10V
20
20
10
10
20
20
10
10
20
20
10
10
20
20
10
10
D
D
D
D
S
Drain Off-
MAX328
= -10V, V = 10V
Leakage
Current
S
I
= 0V
D(OFF)
= 10V, V = -10V
S
MAX329
(Note 6)
= -10V, V = 10V
S
V (all) = V = 10V
S
D
Drain On-
MAX328
Seq. each
switch on,
V (all) = V = -10V
Leakage
Current
S
D
I
nA
D(ON)
V
V
= 0.8V,
= 2.4V
V (all) = V = 10V
AL
S
D
MAX329
(Note 6)
AH
V (all) = V = -10V
S
D
INPUT
V
V
V
V
= 2.4V
= 15V
0.01
0.01
0.01
0.01
1
1
1
1
0.01
0.01
0.01
0.01
1
1
1
1
Address Input Current,
Input Voltage High
A
I
µA
µA
AH
A
= 2.4V
= 0V
Address Input Current,
Input Voltage Low
EN
EN
All
I
AL
V
A
= 0V
Note 2: Typical values are for design aid only; not guaranteed or subject to production testing.
Note 3: All leakage parameters are 100% tested at maximum rated operating temperature, i.e., +70°C, +85°C, +125°C, and guaran-
teed by correlation at +25°C.
Note 4: Guaranteed by design.
Note 5: Electrical characteristics, such as On-Resistance, change when power supplies other than 15V are used. Power-supply
range is a design characteristic, not production tested.
Note 6: Leakage parameters are 100% tested at maximum rated operating temperature, i.e., +70°C, etc.
4
_______________________________________________________________________________________
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8/MAX329
Typical Operating Characteristics
(T = +25°C, unless otherwise noted.)
A
R
vs. ANALOG INPUT
FOR DUAL SUPPLIES
R
vs. ANALOG INPUT
FOR SINGLE SUPPLY
DS(ON)
DS(ON)
9
8
7
6
5
4
3
2
1
0
5
4
3
2
1
0
WITH +15V SUPPLY
5V SUPPLIES
15V SUPPLIES
-15
-10
-5
0
5
10
15
0
5
10
15
ANALOG INPUT (V)
ANALOG INPUT (V)
I
vs. TEMPERATURE
I I vs. TEMPERATURE
D(ON), D(OFF)
S(OFF)
V+ = 15V
V- = 15V
V+ = 15V
V- = 15V
10.0
1.0
100
10
0.1
1.0
0.01
0.1
MAX328/
MAX329
MAX328
0.001
0.0001
0.01
0.001
-55 -35 -15
5
25 45 65 85 105 125
-55 -35 -15
5
25 45 65 85 105 125
TEMPERATURE (°C)
TEMPERATURE (°C)
_______________________________________________________________________________________
5
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
Pin Description
PIN
NAME
FUNCTION
MAX328
MAX329
DIP/SO
TQFN-EP
DIP/SO
TQFN-EP
—
1, 15, 16
15, 14, 13
—
1, 16
2
A0, A2, A1 Address Input
—
2
—
16
1
15, 14
16
A0, A1
EN
Address Input
Enable
3
3
1
V-
Negative-Supply Voltage Input
Analog Inputs—Bidirectional
Analog Inputs—Bidirectional
Analog Outputs—Bidirectional
Analog Outputs—Bidirectional
Analog Inputs—Bidirectional
Analog Inputs—Bidirectional
Positive-Supply Voltage Input
Ground
4–7
—
2–5
—
—
—
S1–S4
S1A–S4A
D
4–7
—
2–5
—
8
6
—
—
8, 9
—
6, 7
—
DA, DB
S8–S5
S4B–S1B
V+
9–12
—
7–10
—
8/MAX329
10–13
14
8–11
12
13
14
—
11
12
—
15
13
GND
—
—
EP
Exposed pad. Connect EP to V+. (TQFN only).
Truth Table—MAX328
Truth Table—MAX329
ON
SWITCH
ON
SWITCH
A2
A1
A0
EN
A1
A0
EN
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
X
0
0
1
1
X
0
1
0
1
0
1
1
1
1
None
1
2
3
4
5
6
7
8
1
2
3
4
Note: Logic “0” = V ≤ 0.8V, Logic “1” = V ≥ 2.4V
AL
AH
6
_______________________________________________________________________________________
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8/MAX329
V
AH
= 3.0V
10V
10V
A2
S1
S2
S2–S7
50%
ADDRESS
DRIVE (V )
MAX328
A
0V
V
A
A1
A0
S8
PROBE
50Ω
+10V
OUTPUT A
-10V
EN
OUT
GND
+V
AH
10MΩ
14pF
90%
t
A
Figure 1. Access Time vs. Logic Level (High)
V
AH
= 3.0V
+5V
A2
S1
MAX328
S2–S7
ADDRESS
V
A
A1
A0
DRIVE (V )
0V
A
S8
50Ω
OUTPUT
EN
OUT
V
OUT
GND
2.4V
50%
50%
12.5pF
1kΩ
t
OPEN
Figure 2. Break-Before-Make Delay (t
)
OPEN
V
AH
= 3.0V
+10V
S1
A2
ENABLE DRIVE
50%
MAX328
A1
A0
S2–S7
0V
EN
OUT
GND
90%
OUTPUT
90%
V
A
1kΩ
12.5pF
50Ω
t
ON(EN)
t
OFF(EN)
Figure 3. Enable Delay (t
, t
)
ON(EN) OFF(EN)
_______________________________________________________________________________________
7
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
Applications Information
Figure 4 is a typical circuit for converting the
A0
EN
1
2
3
16 A1
15 A2
14
MAX328/MAX329 into a fault-tolerant mux. In this
application, the internal diodes limit the voltage at the
MAX328 input to 15.7V ( 15V supplies). No external
diodes need to be added with the MAX328/MAX329,
unlike conventional multiplexers requiring external
diodes.
-15V
1µF
+15V
MAX328
13
R
1µF
The resistors, R, need to be 39kΩ or higher to limit the
S1
S2
S3
S4
4
5
6
7
8
power dissipation in the resistor when a 120V AC fault
R
R
R
R
2
occurs (i.e., power dissipation is (120-16) /39kΩ or
S5
S6
S7
S8
12
11
10
9
0.28W. This is why a 1/2/W resistor is needed). The circuit
withstands an indefinite fault to a 120V AC line with no
damage to any component.
R
R
In addition to allowing fault-protection, the guaranteed
low leakage of the MAX328/MAX329 also reduces signal
errors. The circuit in Figure 4 produces an error voltage of
10pA (max leakage) x 39kΩ or 0.39µV at room tempera-
ture and 39µV at +125°C. Therefore, for 10V signals, the
MAX328/MAX329 allows 17-bit resolution (38µV = 1LSB)
over the full temperature range.
R
8/MAX329
D
R = 39kΩ 1/2W
Figure 4. Fault-Tolerant Mux (indefinitely withstands 120V AC
fault voltages)
Functional Diagrams
TOP VIEW
V-
S1
S2
S3
1
2
3
4
V-
S1A
S2A
S3A
1
2
3
4
12 GND
11 V+
10 S5
12 V+
LOGIC
LOGIC
11 S1B
10 S2B
9
S6
9
S3B
MAX328
MAX329
8
_______________________________________________________________________________________
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
8/MAX329
Ordering Information (continued)
Pin Configurations (continued)
PART
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
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
16 CERDIP
TOP VIEW
MAX329CPE+
MAX329CWE+
MAX329CJE
MAX329C/D
MAX329ETE+
MAX329EPE+
MAX329EWE+
MAX329EJE
MAX329MJE
8
7
6
5
S7
A2 13
A1 14
Dice*
16 TQFN-EP**
16 Plastic DIP
16 Wide SO
16 CERDIP***
16 CERDIP***
S8
D
MAX328
A0 15
EN 16
+
S4
+Denotes a lead(Pb)-free/RoHS-compliant package.
*Contact factory for dice specifications.
**EP = Exposed pad.
TQFN
***Contact factory for availability. Substrate may be allowed to
be unconnected or be connected to V+.
TOP VIEW
Package Information
For the latest package outline information and land patterns
(footprints), go to www.maxim-ic.com/packages. Note that a
“+”, “#”, or “-” in the package code indicates RoHS status only.
Package drawings may show a different suffix character, but
the drawing pertains to the package regardless of RoHS status.
8
7
6
5
S4B
GND 13
A1 14
DB
MAX329
DA
A0 15
EN 16
+
PACKAGE
TYPE
PACKAGE
CODE
J16+3
OUTLINE
NO.
21-0045
21-0043
21-0140
21-0042
LAND
S4A
PATTERN NO.
16 CERDIP
—
16 PDIP
P16+2
—
16 TQFN-EP
16 Wide SO
T1655+3
W16+2
90-0073
90-0107
TQFN
_______________________________________________________________________________________
9
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
Revision History
REVISION REVISION
DESCRIPTION
PAGES
CHANGED
NUMBER
DATE
Updated the Ordering Information table to reflect lead-free parts and corrected part
numbers and package types
3
2/11
1, 9
8/MAX329
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.
10 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2011 Maxim Integrated Products
Maxim is a registered trademark of Maxim Integrated Products, Inc.
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MAX3291
RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication
MAXIM
MAX3291-MAX3292
RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication
MAXIM
MAX3291CPD
RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication
MAXIM
MAX3291CSD
RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication
MAXIM
MAX3291EPD
RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance Communication
MAXIM
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