MUX8521 (5/11)

Standard Products
MUX8521 16-Channel Analog Multiplexer Module
Radiation Tolerant & ESD Protected
Kelvin Measurement Configured
www.aeroflex.com/mux
May 17, 2011
FEATURES
❑
❑
16 Kelvin measurement channels provided by two 16-channel multiplexers
Radiation performance
- Total dose:
300 krads(Si), Dose rate = 50 - 300 rads(Si)/s
- SEU:
Immune up to 120 MeV-cm2/mg
- SEL:
Immune by process design
❑
Full military temperature range
❑
Low power consumption < 30mW
❑
One address bus A0~A3, and one enable line
❑
All channel inputs protected by ±20V nominal Transorbs
❑
Fast access time 1500ns typical
❑
Break-Before-Make switching
❑
High analog input impedance (power on or off )
❑
Designed for aerospace and high reliability space applications
Packaging – Hermetic ceramic
- 56 leads, 0.80"Sq x 0.20"Ht quad flat pack
- Typical Weight 6 grams
❑
GENERAL DESCRIPTION
Aeroflex’s MUX8521 is a radiation tolerant, 16 channel multiplexer MCM (Multi Chip Module) with
electrostatic discharge (ESD) protection on all channel inputs.
The MUX8521 has been specifically designed to meet exposure to radiation environments. It is available
in a 56 lead High Temperature Co-Fired Ceramic (HTCC) Quad Flatpack (CQFP). It is guaranteed
operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534, the
MUX8521 is ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The MUX8521 consists of two 16 channel multiplexers arranged as shown in the block diagram,
addressable by bus A0~A3 including enable which connects the addressed channel to two separate outputs,
"Output" and "Current". This technique enables selecting and reading a remote resistive sensor without the
MUX resistance being part of the measurement. For grounded sensors, this is done by passing current to
the sensor by means of the "Current" pin and reading the resultant voltage (proportional to the sensor
resistance) at the "Output" pin.
SCD8521 Rev B
16
CH 0
•
•
•
16
VR
MUX 1
CH 15
OUTPUT (0-15)
EN (0-15)
+VEE
-VEE
16
MUX 2
VREF
CURRENT (0-15)
GND
A0
A1
A2
A3
MUX8521: 16 KELVIN MEASUREMENT CHANNEL ANALOG MUX BLOCK DIAGRAM
SCD8521 Rev B 5/17/11
2
Aeroflex Plainview
ABSOLUTE MAXIMUM RATINGS 1/
Parameter
Range
Units
Case Operating Temperature Range
-55 to +125
°C
Storage Temperature Range
-65 to +150
°C
+16.5
-16.5
+16.5
V
V
V
< VREF +4
> GND -4
V
V
±18V
V
Supply Voltage
+VEE (Pin 18)
-VEE (Pin 46)
VREF (Pin 39)
Digital Input Overvoltage
VEN (Pin 13), VA (Pins 14, 15, 16, 17)
Analog Input Over Voltage
VIN
Notes:
1/ All measurements are made with respect to ground.
NOTICE: Stresses above those listed under "Absolute Maximums Rating" may cause permanent damage to the device. These are stress rating
only; functional operation beyond the "Operation Conditions" is not recommended and extended exposure beyond the "Operation Conditions" may
affect device reliability.
RECOMMENDED OPERATING CONDITIONS 1/
Symbol
Parameter
Typical
Units
+VEE
+15V Power Supply Voltage
+15.0
V
-VEE
-15V Power Supply Voltage
-15.0
V
VREF
Reference Voltage
+5.00
V
VAL
Logic Low Level
+0.8
V
VAH
Logic High Level
+4.0
V
1/ Power Supply turn-on sequence shall be as follows: +VEE, -VEE, followed by VREF.
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
(TC = -55°C TO +125°C, +VEE = +15V, -VEE = -15V, VREF = +5.0V -- UNLESS OTHERWISE SPECIFIED)
Parameter
Symbol
Conditions
Min
Max
Units
+IEE
VEN(0-15) = VA(0-3) = 0
0.1
1
mA
-IEE
VEN(0-15) = VA(0-3) = 0
-1
-0.1
mA
+ISBY
VEN(0-15) = 4V, VA(0-3) = 0 6/
0.1
1
mA
-ISBY
VEN(0-15) = 4V, VA(0-3) = 0 6/
-1
-0.1
mA
IAL(0-3)A
VA = 0V
-2
2
A
IAH(0-3)A
VA = 5V
-2
2
A
IENL(0-15)
VEN(0-15) = 0V
-2
2
A
IENH(0-15)
VEN(0-15) = 5V
-2
2
A
Supply Current
Address Input Current
Enable Input Current
SCD8521 Rev B 5/17/11
3
Aeroflex Plainview
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/ (continued)
(TC = -55°C TO +125°C, +VEE = +15V, -VEE = -15V, VREF = +5.0V -- UNLESS OTHERWISE SPECIFIED)
Parameter
Symbol
Conditions
Min
Max
Units
Positive Input
Leakage Current
(CH0-CH15)
+ISOFFOUTPUT(ALL)
VIN = +10V, VEN = 4V, output and all unused MUX inputs
under test = -10V 2/, 3/
-100
+700
nA
Negative Input
Leakage Current
(CH0-CH15)
-ISOFFOUTPUT(ALL)
VIN = -10V, VEN = 4V, output and all unused MUX inputs
under test = +10V 2/, 3/
-100
+700
nA
Positive Output
Leakage Current
OUTPUTS (pins 12,45)
+IDOFFOUTPUT(ALL)
VOUT = +10V, VEN = 4V, output and all unused MUX
inputs under test = -10V 3/, 4/
-100
+100
nA
Negative Output
Leakage Current
OUTPUTS (pins 12,45)
-IDOFFOUTPUT(ALL)
VOUT = -10V, VEN = 4V, output and all unused MUX inputs
under test = +10V 3/, 4/
-100
+100
nA
Input Clamped Voltage
(CH0-CH15)
+VCLMP
+25°C
+125°C
-55°C
18.0
18.0
17.5
23.0
23.5
22.5
V
V
V
+25°C
+125°C
-55°C
-23.0
-23.5
-22.5
-18.0
-18.0
-17.5
V
V
V
VEN = 4V, all unused MUX inputs under test
are open. 3/
Input Clamped Voltage
(CH0-CH15)
Switch ON Resistance
OUTPUTS (pins 12,45)
-VCLMP
RDS(ON)(0-15)A
VIN = +15V, VEN = 0.8V, IOUT = -1mA 2/, 3/, 5/
500
3000

RDS(ON)(0-15)B
VIN = +5V, VEN = 0.8V, IOUT = -1mA 2/, 3/, 5/
500
3000

RDS(ON)(0-15)C
VIN = -5V, VEN = 0.8V, IOUT = +1mA 2/, 3/, 5/
500
3000

Notes:
1/ Measure inputs sequentially. Ground all unused inputs of the device under test. VA is the applied input voltage to the address lines A(0-3).
2/ VIN is the applied input voltage to the input channels (CH0-CH15).
3/ VEN is the applied input voltage to the enable line EN (0-15).
4/ VOUT is the applied input voltage to the output lines OUTPUT (0-15), CURRENT (0-15)
5/ Negative current is the current flowing out of each of the MUX pins. Positive current is the current flowing into each MUX pin.
6/ Not tested, guaranteed to the specified limits.
SWITCHING CHARACTERISTICS
(TC = -55°C TO +125°C, +VEE = +15V, -VEE = -15V, VREF = +5.0V -- UNLESS OTHERWISE SPECIFIED)
Parameter
Switching Test MUX
Symbol
Conditions
Min
Max
Units
tAHL
RL = 10KCL = 50pF
10
1500
ns
tALH
RL = 10KCL = 50pF
Tc = +25°C, +125°C
Tc = -55°C
10
10
2000
5000
ns
ns
10
1500
ns
10
1000
ns
tONEN
tOFFEN
SCD8521 Rev B 5/17/11
RL = 1KCL = 50pF
4
Aeroflex Plainview
TRUTH TABLE (CH0 – CH15)
A3
A2
A1
A0
EN (0-15)
"ON" CHANNEL 1/
X
X
X
X
H
NONE
L
L
L
L
L
CH0
L
L
L
H
L
CH1
L
L
H
L
L
CH2
L
L
H
H
L
CH3
L
H
L
L
L
CH4
L
H
L
H
L
CH5
L
H
H
L
L
CH6
L
H
H
H
L
CH7
H
L
L
L
L
CH8
H
L
L
H
L
CH9
H
L
H
L
L
CH10
H
L
H
H
L
CH11
H
H
L
L
L
CH12
H
H
L
H
L
CH13
H
H
H
L
L
CH14
H
H
H
H
L
CH15
1/ Between (CH0-CH15) and OUTPUT (0-15), CURRENT (0-15)
SCD8521 Rev B 5/17/11
5
Aeroflex Plainview
Address Lines
(A0 - A3)
4.0V
50%
0.8V
11.6V MIN
50%
MUX Output
0V
t AHL
Definition of t AHL
Address Lines
(A0 - A3)
4.0V
50%
0.8V
11.6V MIN
MUX Output
50%
0V
t ALH
Definition of t ALH
4.0V
EN Lines
50%
0.8V
~3V to 10.0V
MUX Output
50%
0V
tONEN
tOFFEN
Definition of tONEN and tOFFEN
NOTE: f = 10KHz, Duty cycle = 50%.
MUX8521 SWITCHING DIAGRAMS
SCD8521 Rev B 5/17/11
6
Aeroflex Plainview
PIN NUMBERS & FUNCTIONS
MUX8521 – 56 Leads Ceramic QUAD Flat Pack
Pin #
Function
Pin #
Function
1
CH0
29
NC
2
CH1
30
NC
3
CH2
31
NC
4
CH3
32
NC
5
CH4
33
NC
6
CH5
34
NC
7
GND
35
GND
8
GND
36
GND
9
CH6
37
NC
10
CH7
38
NC
11
CASE GND
39
VREF
12
OUTPUT (0-15)
40
NC
13
EN (0-15)
41
NC
14
A0
42
NC
15
A1
43
NC
16
A2
44
NC
17
A3
45
CURRENT (0-15)
18
+VEE
46
-VEE
19
CH15
47
NC
20
CH14
48
NC
21
GND
49
GND
22
GND
50
GND
23
CH13
51
NC
24
CH12
52
NC
25
CH11
53
NC
26
CH10
54
NC
27
CH9
55
NC
28
CH8
56
NC
Notes:
1. It is recommended that all "NC" or "no connect pin", be grounded. This eliminates or minimizes any ESD or static buildup.
2. Package lid is internally connected to circuit ground (Pins 7, 8, 11, 21, 22, 35, 36, 49, 50).
SCD8521 Rev B 5/17/11
7
Aeroflex Plainview
ORDERING INFORMATION
Model
DSCC SMD #
Screening
MUX8521-7
-
Commercial Flow, +25°C testing only
MUX8521-S
-
Military Temperature, -55°C to +125°C
Screened in accordance with the individual Test Methods
of MIL-STD-883 for Space Applications
5962-0922902KXC
In accordance with DSCC SMD
MUX8521-201-1S
PACKAGE OUTLINE
Package
QUAD Flat
Pack
0.650 ±.005
(13 Spaces at .050)
Tol Non-Cum
4 Sides
Pin 1
Pin 7
.200
MAX
Pin 50
Pin 49
Pin 8
.0165
±.003
0.800 SQ
±.010
Pin 21
(.650)
Pin 36
Pin 35
Pin 22
Note: Outside ceramic tie bars
not shown for clarity. Contact
factory for details.
.006
±.002
EXPORT CONTROL:
EXPORT WARNING:
This product is controlled for export under the International Traffic in
Arms Regulations (ITAR). A license from the U.S. Department of
State is required prior to the export of this product from the United
States.
Aeroflex’s military and space products are controlled for export under
the International Traffic in Arms Regulations (ITAR) and may not be
sold or proposed or offered for sale to certain countries. (See ITAR
126.1 for complete information.)
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www.aeroflex.com
[email protected]
Aeroflex Microelectronic Solutions reserves the right to
change at any time without notice the specifications, design,
function, or form of its products described herein. All
parameters must be validated for each customer's application
by engineering. No liability is assumed as a result of use of
this product. No patent licenses are implied.
SCD8521 Rev B 5/17/11
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