MAX328EWE+T ,Ultra-Low-Leakage, Single-Ended, Monolithic, CMOS Analog MultiplexerFeaturesThe MAX328/MA329 are monolithic CMOS analog multi- ♦ Ultra-Low Off- and On-Leakage: 1pA Typ ..
MAX3291CSD ,RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance CommunicationApplicationsMAX3291ESD -40°C to +85°C 14 SOLong-Distance, High-Speed RS-485/RS-422MAX3291EPD -40°C ..
MAX3291CSD+ ,RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance CommunicationMAX3291/MAX329219-1405; Rev 1; 4/99RS-485/RS-422 Transceivers w ith Preemphasisfor High-Speed, Long ..
MAX3291CSD+T ,RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance CommunicationELECTRICAL CHARACTERISTICS(Typical Operating Circuit, V = +5V ±5%, R = 0 (MAX3292), V = V (MAX3292) ..
MAX3291EPD ,RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance CommunicationApplicationsMAX3291ESD -40°C to +85°C 14 SOLong-Distance, High-Speed RS-485/RS-422MAX3291EPD -40°C ..
MAX3291ESD ,RS-485/RS-422 Transceivers with Preemphasis for High-Speed, Long-Distance CommunicationELECTRICAL CHARACTERISTICS(Typical Operating Circuit, V = +5V ±5%, R = 0 (MAX3292), V = V (MAX3292) ..
MAX694CPA ,Microprocessor Supervisory CircuitsFeatures
. Precision Voltage Monitor
4.65V in MAX690, MAX691, MAX694 and MAX695
4.40V in MAX69 ..
MAX694CPA+ ,Microprocessor Supervisory CircuitsElectrical CharacteristicsV = full operating range, V = 2.8V, T = +25°C, unless otherwise noted.)CC ..
MAX694EPA ,Microprocessor Supervisory CircuitsApplications
Computers
Controllers
Intelligent Instruments
Automotive Systems
Critical ..
MAX694EPA ,Microprocessor Supervisory Circuits19-02 18; He V 2; 4/95
MAX694MJA ,Microprocessor Supervisory CircuitsELECTRICAL CHARACTERISTICS
(Vcc = full operating range, VBATT = 2.8V, T, = 25°C, unless otherwis ..
MAX6950EEE+ ,Serially Interfaced, +2.7V to +5.5V, 5- and 8-Digit LED Display DriversApplicationsMAX6950EEE -40°C to +85°C 16 QSOP-EP*Set-Top BoxesMAX6951CEE 0°C to +70°C 16 ..
MAX328ETE+T-MAX328EWE+-MAX328EWE+T-MAX329CWE+T
Ultra-Low-Leakage, Single-Ended, Monolithic, CMOS Analog Multiplexer
General DescriptionThe 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 40kΩresistor to each input makes
the MAX328/MAX329 an excellent fault-tolerant multi-
plexer. Low leakage (less than 1pA at +25°C) and
2.5kΩon-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.
ApplicationsControl Systems
Data Logging Systems
Aircraft Heads-Up Displays
Data-Acquisition Systems
Signal Routing
FeaturesUltra-Low Off- and On-Leakage: 1pA TypBidirectional Operation (Use as Mux or Demux)TTL and CMOS Logic CompatibilityAnalog-Signal Range Includes Power-Supply RailsSwitching Speeds Less Than 1.5µsPin Compatible with DG508/DG509 and
MAX358/MAX359Latchup Proof Construction
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog MultiplexersA1
GND
TOP VIEW
MAX328
DIP/SOA1
GND
S1B
S2B
S3B
S4B
MAX329
DIP/SOS3A
S1A
S2A
S4A
Pin Configurations
Ordering InformationMAX328V-GNDA1A2EN
AMP
+15V-15V
40kΩ
1/2W
40kΩ
1/2WANALOG
INPUT
ANALOG
INPUT
DM7493
+15V
+15V
N.C.
CLK IN
N.C.
GNDV02V01
AIN
BIN
OUT
i BIAS < 1pA
1-OF-8 CHANNEL SEQUENTIAL MUX WITH 120V AC FAULT CAPABILITY
Typical Operating Circuit19-1006; Rev 3; 2/11
+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.
PARTTEMP RANGEPIN-PACKAGE
MAX328CPE+ 0°C to +70°C 16 Plastic DIP
MAX328CWE+ 0°C to +70°C 16 Wide SO
MAX328CJE 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***
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS(V+ = 15V, V- = -15V, VGND= 0V, TA
= +25°C, unless otherwise noted.) (Note 2)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.
Voltage Referenced to V-........................................................................................+44V
GND.....................................................................................+25V
Digital Inputs (Note 1), VS, VD............................-2V to (V+ + 2V)
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
Power Dissipation (Package) (Note 1)
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)
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
MAX328M
MAX329M
MAX328C/E
MAX329C/EPARAMETER SYMBOL CONDITIONS
MIN TYP MAX MIN TYP MAX
UNITS
SWITCHAnalog Signal Range VANALOG -15 +15 -15 +15 V
VD = 10V,
IS = 100µA 1.5 2.5 1.5 3.5 Drain-Source
On-Resistance RDS(ON)
VD = -10V,
IS = 100µA
Seq. each
switch on,
VAL = 0.8V,
VAH = 2.4V 1.0 2.5 1.0 3.5
Greatest Change in
Drain-Source On-
Resistance Between
Channels
RDS(ON)
RDS(ON) =
RDS(ON) Max - RDS(ON)
Min ) RDS(ON)
Ave 2 2 %
VS = 10V, VD = -10V 0.1 ±10 0.1 ±10 Source Off-Leakage
Current (Note 3) IS(OFF)VS = -10V, VD = 10V VEN = 0V 0.3 ±10 0.3 ±10 pA
VD = 10V, VS = -10V 0.3 ±10 0.3 ±10 MAX328 VD = -10V, VS = 10V 1.0 ±10 1.0 ±10
VD = 10V, VS = -10V 0.3 ±10 0.3 ±10
Drain Off-
Leakage
Current
(Note 3) MAX329
ID(OFF)
VD = -10V, VS = 10V
VEN = 0V
0.5 ±10 0.5 ±10
pA
VS (all) = VD = 10V 3.0 ±10 3.0 ±10 MAX328 VS (all) = VD = -10V 2.0 ±10 2.0 ±10
VS (all) = VD = 10V 1.5 ±10 1.5 ±10
Drain On-
Leakage
Current
(Note 3) MAX329
ID(ON)
VS (all) = VD = -10V
Seq. each
switch on,
VAL = 0.8V,
VAH = 2.4V 1.0 ±10 1.0 ±10
pA
Note 1:All leads soldered or welded to PC board.
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
ELECTRICAL CHARACTERISTICS (continued)(V+ = 15V, V- = -15V, VGND= 0V, TA
= +25°C, unless otherwise noted.) (Note 2)
MAX328M
MAX329M
MAX328C/E
MAX329C/EPARAMETER SYMBOL CONDITIONS
MIN TYP MAX MIN TYP MAX
UNITS
INPUTVA = 2.4V 0.001 ±1 0.001 ±1 Address Input Current,
Input Voltage High IAHVA = 15V 0.001 ±1 0.001 ±1 µA
VEN = 2.4V 0.001 ±1 0.001 ±1 Address Input Current,
Input Voltage Low IALVEN = 0V
All
VA = 0V 0.001 ±1 0.001 ±1 µA
DYNAMICSwitching Time of
Multiplexer tTRANSITION Figure 1 1.0 1.5 µs
Break-Before-Make
Interval tOPENFigure 2 0.2 0.2 µs
Enable Turn-On Time tON(EN) Figure 3 1.0 1.5 µs
Enable Turn-Off Time tOFF(EN) Figure 3 0.7 1.0 µs
Off-Isolation OIRR VEN = 0V, RL = 1k, CL = 15pF,
VS = 7VRMS, f = 500kHz 84 84 dB
Source Off-Capacitance CS(OFF) VS = 0V VEN = 0V,
f = 1MHz 1.8 1.8 pF
MAX328 8.0 8.0 Drain Off-
Capacitance MAX329 CD(OFF) VD = 0V VEN = 0V,
f = 1MHz 4.0 4.0 pF
VA = 10V 1 1
VA = 0V 2 5 2 5 Charge Injection
(Note 4) Q(INJ)
VA = -10V 4 4
pc
SUPPLYPositive Supply Current I+ VEN = 2.4V VA = 0V/5V 4.5 200 4.5 200 µA
Negative Supply Current I- VEN = 2.4V VA = 0V/5V 1 -100 1 -100 µA
Power-Supply Range for
Continuous Operation
(Note 7)
VOP ±5 ±18 ±5 ±18 V
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
ELECTRICAL CHARACTERISTICS (Overtemperature)(V+ = 15V, V- = -15V, VGND= 0V, TA
= TMINto TMAX, unless otherwise noted.) (Note 2)
MAX328M
MAX329M
MAX328C/E
MAX329C/E PARAMETER SYMBOL TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNITS
SWITCHAnalog-Signal Range VANALOG -15 +15 -15 +15 V
VD = 10V,
IS = 100µA 2.2 4 1.9 5 Drain-Source
On-Resistance RDS(ON)
VD = -10V,
IS = 100µA
Seq. each
switch on,
VAL = 0.8V,
VAH = 2.4V 1.5 4 1.2 5
VS = 10V, VD = -10V ±5 ±5 Source Off-Leakage
Current (Note 6) IS(OFF)VS = -10V, VD = 10V VEN = 0V ±5 ±5 nA
VD = 10V, VS = -10V ±20 ±20 MAX328 VD = -10V, VS = 10V ±20 ±20
VD = 10V, VS = -10V ±10 ±10
Drain Off-
Leakage
Current
(Note 6) MAX329
ID(OFF)
VD = -10V, VS = 10V
VEN = 0V ±10 ±10
nA
VS (all) = VD = 10V ±20 ±20 MAX328 VS (all) = VD = -10V ±20 ±20
VS (all) = VD = 10V ±10 ±10
Drain On-
Leakage
Current
(Note 6) MAX329
ID(ON)
VS (all) = VD = -10V
Seq. each
switch on,
VAL = 0.8V,
VAH = 2.4V ±10 ±10
nA
INPUTVA = 2.4V 0.01 ±1 0.01 ±1 Address Input Current,
Input Voltage High IAHVA = 15V 0.01 ±1 0.01 ±1 µA
VEN = 2.4V 0.01 ±1 0.01 ±1 Address Input Current,
Input Voltage Low IALVEN = 0V
All
VA = 0V 0.01 ±1 0.01 ±1 µA
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.
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
Typical Operating Characteristics(TA = +25°C, unless otherwise noted.)
RDS(ON) vs. ANALOG INPUT
FOR DUAL SUPPLIESMAX328/MAX329 toc01
ANALOG INPUT (V)
DS(ON)
(k50-5-10
±5V SUPPLIES
±15V SUPPLIES
RDS(ON) vs. ANALOG INPUT
FOR SINGLE SUPPLYMAX328/MAX329 toc02
ANALOG INPUT (V)
DS(ON)
(k5
WITH +15V SUPPLY
IS(OFF) vs. TEMPERATUREMAX328/MAX329 toc03
TEMPERATURE (°C)
LEAKAGE (nA)
V+ = 15V
V- = 15V
MAX328/
MAX329
ID(ON), ID(OFF) vs. TEMPERATUREMAX328/MAX329 toc04
TEMPERATURE (°C)
LEAKAGE (nA)
V+ = 15V
V- = 15V
MAX328
MAX328/MAX329
Ultra-Low Leakage Monolithic CMOS
Analog Multiplexers
PIN
MAX328 MAX329
DIP/SO TQFN-EP DIP/SO TQFN-EP
NAME FUNCTION 1, 15, 16 15, 14, 13 — — A0, A2, A1 Address Input — 1, 16 15, 14 A0, A1 Address Input
2 16 2 16 EN Enable
3 1 3 1 V- Negative-Supply Voltage Input
4–7 2–5 — — S1–S4 Analog Inputs—Bidirectional
— — 4–7 2–5 S1A–S4A Analog Inputs—Bidirectional
8 6 — — D Analog Outputs—Bidirectional — 8, 9 6, 7 DA, DB Analog Outputs—Bidirectional
9–12 7–10 — — S8–S5 Analog Inputs—Bidirectional
— — 10–13 8–11 S4B–S1B Analog Inputs—Bidirectional
13 11 14 12 V+ Positive-Supply Voltage Input
14 12 15 13 GND Ground — — — EP Exposed pad. Connect EP to V+. (TQFN only).
Pin Description
Truth Table—MAX328
A2 A1 A0 EN ON
SWITCH X X X 0 None
0 0 0 1 1
0 0 1 1 2
0 1 0 1 3
0 1 1 1 4
1 0 0 1 5
1 0 1 1 6
1 1 0 1 7
1 1 1 1 8
Truth Table—MAX329
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
Note:Logic “0” = VAL≤0.8V, Logic “1” = VAH≥2.4V
