MAX328ETE View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
MAX328ETE Datasheet PDF : 10 Pages
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19-1006; Rev 3; 2/11
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
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.
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.
Applications
Control Systems
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
Typical Operating Circuit
1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY
+15V
-15V
CLK IN
N.C.
ANALOG
INPUT
ANALOG
+15V INPUT
40kΩ
1/2W
40kΩ
1/2W
V+
QB
BIN DM7493 QC
AIN
QO
QA N.C.
V01 V02 GND
V+ GND V-
S1
MAX328 D
S8
A0 A1 A2 EN
OP
AMP
OUT
i BIAS < 1pA
+15V
EN IN
(MUX ON/OFF CONTROL)
Features
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
MAX358/MAX359
o Latchup Proof Construction
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX328CPE+
0°C to +70°C
16 Plastic DIP
MAX328CWE+
0°C to +70°C
16 Wide SO
MAX328C JE
0°C to +70°C
16 CERDIP
MAX328C/D
0°C to +70°C
Dice*
MAX328ETE+
-40°C to +85°C
16 TQFN-EP**
MAX328EPE+
-40°C to +85°C
16 Plastic DIP
MAX328EWE+
-40°C to +85°C
16 Wide SO
MAX328EJE
-40°C to +85°C
16 CERDIP***
MAX328MJE
-55°C to +125°C 16 CERDIP***
+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.
Pin Configurations
TOP VIEW
+
A0 1
EN 2
V- 3
S1 4 MAX328
S2 5
S3 6
S4 7
D8
DIP/SO
16 A1
15 A2
14 GND
13 V+
12 S5
11 S6
10 S7
9 S8
+
A0 1
EN 2
V- 3
S1A 4 MAX329
S2A 5
S3A 6
S4A 7
DA 8
DIP/SO
16 A1
15 GND
14 V+
13 S1B
12 S2B
11 S3B
10 S4B
9 DB
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.
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