MAX329 Maxim, MAX329 Datasheet

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MAX329

Manufacturer Part Number
MAX329
Description
The MAX328/MA329 are monolithic CMOS analog multiplexers
Manufacturer
Maxim
Datasheet

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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.
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.
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.
19-1006; Rev 3; 2/11
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.
EN IN
(MUX ON/OFF CONTROL)
CLK IN
N.C.
Control Systems
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
BIN
AIN
V
01
DM7493
1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY
+15V
+15V
V
V+
02
Typical Operating Circuit
GND
ANALOG
ANALOG
________________________________________________________________ Maxim Integrated Products
INPUT
INPUT
Q
Q
Q
Q
B
C
O
A
N.C.
General Description
40kΩ
1/2W
40kΩ
1/2W
Ultra-Low Leakage Monolithic CMOS
S1
S8
+15V
V+
A0
MAX328
A1
GND
A2
Applications
-15V
EN
V-
D
i BIAS < 1pA
AMP
OP
OUT
o Ultra-Low Off- and On-Leakage: 1pA Typ
o Bidirectional Operation (Use as Mux or Demux)
o TTL and CMOS Logic Compatibility
o Analog-Signal Range Includes Power-Supply Rails
o Switching Speeds Less Than 1.5µs
o Pin Compatible with DG508/DG509 and
o Latchup Proof Construction
+ Denotes a lead(Pb)-free/RoHS-compliant package.
* Contact factory for dice specifications.
** 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.
MAX328CPE+
MAX328CWE+
MAX328CJE
MAX328C/D
MAX328ETE+
MAX328EPE+
MAX328EWE+
MAX328EJE
MAX328MJE
Pin Configurations continued at end of data sheet.
MAX358/MAX359
A0
EN
S1
S2
S3
S4
V-
D
1
2
3
4
5
6
7
8
PART
Analog Multiplexers
+
MAX328
DIP/SO
16
15
14
13
12
11
10
9
-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
TEMP RANGE
Ordering Information
A1
A2
GND
V+
S5
S6
S7
S8
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
TOP VIEW
Pin Configurations
S1A
S2A
S3A
S4A
DA
A0
EN
V-
1
2
3
4
5
6
7
8
+
MAX329
DIP/SO
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
16 CERDIP
Dice*
16 TQFN-EP**
16 Plastic DIP
16 Wide SO
16 CERDIP***
16 CERDIP***
Features
16
15
14
13
12
11
10
9
A1
GND
V+
S1B
S2B
S3B
S4B
DB
1

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MAX329 Summary of contents

Page 1

... 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 ± ...

Page 2

... V = 10V (all 10V S D Seq. each V (all -10V switch on 0.8V, V (all 10V 2. (all -10V S D MAX328M MAX328C/E MAX329M MAX329C/E TYP MAX MIN TYP MAX -15 +15 -15 +15 1.5 2.5 1.5 3.5 1.0 2.5 1.0 3 0.1 ±10 0.1 ±10 0.3 ±10 0.3 ±10 0.3 ±10 0.3 ±10 1.0 ±10 1.0 ±10 0.3 ± ...

Page 3

... OPEN Interval Enable Turn-On Time t ON(EN) Enable Turn-Off Time t OFF(EN) Off-Isolation OIRR Source Off-Capacitance C S(OFF) MAX328 Drain Off- C D(OFF) Capacitance MAX329 Charge Injection Q (INJ) (Note 4) SUPPLY Positive Supply Current I+ Negative Supply Current I- Power-Supply Range for Continuous Operation V OP (Note 7) _______________________________________________________________________________________ Analog Multiplexers ...

Page 4

... 2. (all -10V 2. 15V 2.4V All MAX328M MAX328C/E MAX329M MAX329C/E TYP MAX MIN TYP MAX -15 +15 -15 +15 2.2 4 1.9 5 1.5 4 1.2 5 ±5 ±5 ±5 ±5 ±20 ±20 ±20 ±20 ±10 ±10 ±10 ±10 ±20 ±20 ± ...

Page 5

... SUPPLIES ANALOG INPUT (V) vs. TEMPERATURE I D(ON 15V V- = 15V 100 10 1.0 0.1 MAX328/ 0.01 MAX329 0.001 105 125 -55 -35 TEMPERATURE (°C) R vs. ANALOG INPUT DS(ON) FOR SINGLE SUPPLY WITH +15V SUPPLY ANALOG INPUT (V) I vs. TEMPERATURE D(OFF) MAX328 ...

Page 6

... Analog Outputs—Bidirectional 6, 7 DA, DB Analog Outputs—Bidirectional — S8–S5 Analog Inputs—Bidirectional 8–11 S4B–S1B Analog Inputs—Bidirectional 12 V+ Positive-Supply Voltage Input 13 GND Ground — EP Exposed pad. Connect EP to V+. (TQFN only). Truth Table—MAX329 SWITCH 0 None ...

Page 7

Ultra-Low Leakage Monolithic CMOS V = 3.0V AH 50% ADDRESS DRIVE (V +10V 90 Figure 1. Access Time vs. Logic Level (High 3.0V AH ADDRESS 0V DRIVE (V 50% 50% t OPEN Figure 2. Break-Before-Make Delay ...

Page 8

... 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. The resistors, R, need to be 39kΩ or higher to limit the power dissipation in the resistor when a 120V AC fault occurs (i ...

Page 9

... MAX329CJE 0°C to +70°C MAX329C/D 0°C to +70°C MAX329ETE+ -40°C to +85°C MAX329EPE+ -40°C to +85°C MAX329EWE+ -40°C to +85°C MAX329EJE -40°C to +85°C MAX329MJE -55°C to +125°C + Denotes a lead(Pb)-free/RoHS-compliant package. * Contact factory for dice specifications Exposed pad. ...

Page 10

... 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 © ...

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