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PDF MAX354 Data sheet ( Hoja de datos )
| Número de pieza | MAX354 | |
| Descripción | Fault-Protected Analog Multiplexers | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-0389; Rev. 2; 9/96
Fault-Protected Analog Multiplexers
_______________General Description
The MAX354/MAX355 fault-protected multiplexers
(muxes) use a series N-channel, P-channel, N-channel
structure that protects the devices from overvoltage up
to 40V beyond the supply rails during power-up, power-
down, and fault conditions. The MAX354/MAX355 also
protect sensitive circuit components against voltages
near or beyond the normal supplies.
The MAX354 single 8-channel mux and the MAX355
dual 4-channel mux protect analog signals while oper-
ating from a single 4.5V to 36V supply or ±4.5V to ±18V
dual supplies. These muxes have 350Ω on-resistance
and can be used for demultiplexing as well as multi-
plexing. Input leakage current is less than 0.5nA at
+25°C and less than 5nA at +85°C.
All digital inputs have 0.8V and 2.4V logic thresholds,
ensuring both TTL and CMOS logic compatibility with-
out pull-up resistors. Break-before-make operation is
guaranteed and power consumption is less than
1.5mW.
________________________Applications
Data-Acquisition Systems
Industrial and Process Control
Avionics
ATE Equipment
Signal Routing
Redundant/Backup Systems
____________________________Features
o 350Ω Max On-Resistance
o Improved 2nd Source for MAX358/MAX359 and
DG458/DG459
o Pin Compatible with ADG508F/ADG509F
o All Switches Off with Supplies Off
o On Switch Turns Off with Overvoltage
o Output Clamps at 1.5V Below Supply Rails
o 0.5nA Max Input Leakage at +25°C (5nA at +85°C)
o No Power-Up Sequencing Required
o TTL and CMOS-Logic Compatibility
______________Ordering Information
PART
MAX354CPE
TEMP. RANGE
0°C to +70°C
MAX354CWE
MAX354C/D
0°C to +70°C
0°C to +70°C
MAX354EPE
-40°C to +85°C
MAX354EWE
-40°C to +85°C
MAX354MJE
-55°C to +125°C
MAX355CPE
0°C to +70°C
MAX355CWE
MAX355C/D
MAX355EPE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
MAX355EWE
-40°C to +85°C
MAX355MJE
-55°C to +125°C
* Dice are tested at TA = +25°C only.
** Contact factory for availability.
PIN-PACKAGE
16 Plastic DIP
16 Wide SO
Dice*
16 Plastic DIP
16 Wide SO
16 CERDIP**
16 Plastic DIP
16 Wide SO
Dice*
16 Plastic DIP
16 Wide SO
16 CERDIP**
__________________________________________________________Pin Configurations
A0 1
EN 2
V- 3
NO1 4
NO2 5
NO3 6
NO4 7
COM 8
MAX354
LOGIC
DIP/SO
16 A1
15 A2
14 GND
13 V+
12 NO5
11 NO6
10 NO7
9 NO8
TOP VIEW
A0 1
EN 2
V- 3
NO1A 4
NO2A 5
NO3A 6
NO4A 7
COMA 8
MAX355
LOGIC
DIP/SO
16 A1
15 GND
14 V+
13 NO1B
12 NO2B
11 NO3B
10 NO4B
9 COMB
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
1 page  
Fault-Protected Analog Multiplexers
____________________________Typical Operating Characteristics (continued)
(TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERATURE
1000
100
V+ = +15V
V- = -15V
VEN = +5V
I+ (VA_ = 5V)
I+ (VA_ = 0V)
10
1
I-
0.1
-75 -50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
FAULT CURRENT vs. FAULT VOLTAGE
10m
1m
100µ
V+ = V- = 0V
10µ
1µ
100m
V+ = +15V
V- = -15V
10n
1n
100p
10p
-70 -50 -30 -10 10 30 50 70
FAULT VOLTAGE (V)
______________________________________________________________Pin Description
PIN
MAX354 MAX355
1, 15, 16
—
— 1, 16
22
33
4–7 —
— 4–7
8—
— 8, 9
9–12
—
— 10–13
13 14
14 15
NAME
FUNCTION
A0, A2, A1
A0, A1
EN
V-
NO1–NO4
NO1A–NO4A
COM
COMA, COMB
NO8–NO5
NO4B–NO1B
V+
GND
Address Logic Inputs
Address Logic Inputs
Enable Logic Input. See truth tables.
Negative Supply Voltage Input. Connect to GND for single-supply operation.
Analog Inputs—bidirectional
Analog Inputs—bidirectional “A” switch
Analog Output—bidirectional
Analog Outputs—bidirectional
Analog Inputs—bidirectional
Analog Inputs—bidirectional “B” switch
Positive Supply Voltage Input
Ground
Note: Analog inputs and outputs are electrically identical and completely interchangeable.
_______________________________________________________________________________________ 5
5 Page 
Fault-Protected Analog Multiplexers
Table 2a. Typical Off-Isolation Rejection
Ratio
Frequency
One Channel Driven
100kHz
100dB
1MHz
80dB
Test Conditions: VIN = 20Vp-p at the tabulated frequency,
RL = 1.5kΩ between OUT and ground, EN = 0V.
20Vp-p
VISO = 20log —————
VOUT (p-p)
Table 2b. Typical Crosstalk Rejection Ratio
Frequency
100kHz
1MHz
RL = 1.5kΩ
92dB
72dB
RL = 10kΩ
76dB
56dB
Test Conditions: Specified RL connected from OUT to ground,
EN = +5V, A0 = A1 = A2 = +5V (Channel 1 selected). 20Vp-p
at the tabulated frequency is applied to Channel 2. All other
channels are open circuited. Similar crosstalk rejection can be
observed between any two channels.
__________________________________________Functional Diagrams/Truth Tables
MAX354
NO1
NO2
NO3
NO4
NO5
NO6
NO7
NO8
V+ V- GND
COM
DECODERS / DRIVERS
A0 A1 A2 EN
MAX354
A2 A1 A0 EN ON SWITCH
X XX 0
0 00 1
0 01 1
0 10 1
0 11 1
1 00 1
1 01 1
1 10 1
1 11 1
NONE
1
2
3
4
5
6
7
8
LOGIC "O" VAL ≤ +0.8V, LOGIC "1" VAH ≥ +2.4V
MAX355
NO1A
NO2A
NO3A
NO4A
NO1B
NO2B
NO3B
NO4B
V+ V- GND
DECODERS / DRIVERS
A0 A1
EN
COMA
COMB
MAX355
A1 A0 EN ON SWITCH
X X0
0 01
0 11
1 01
1 11
NONE
1
2
3
4
LOGIC "O" VAL ≤ +0.8V, LOGIC "1" VAH ≥ +2.4V
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX354.PDF ] | |
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