SCD8518 Rev D
FEATURES
❑32 Channels provided by two independent 16-channel multiplexers
❑Radiation performance
- Total dose: 150 krads(Si), Dose rate = 50 - 300 rads(Si)/s
- SEU: Immune up to 90 MeV-cm2/mg
- SEL: Immune by process design
❑Full military temperature range
❑Low power consumption < 30mW
❑Two address busses (A0-3 & B0-3), and two enable lines afford flexible organization
❑All channel Inputs protected by ±20V nominal transorbs
❑Fast access time < 500ns typical
❑Break-Before-Make switching
❑High analog input impedance (power on or off)
❑Designed for aerospace and high reliability space applications
❑Packaging – Hermetic ceramic
- 96 leads, 1.32"Sq x 0.20"Ht quad flat pack
- Typical Weight 15 grams
❑DSCC SMD 5962-09204 pending
ACT8518 32-Channel Analog Multiplexer Module
Radiation Tolerant & ESD Protected
GENERAL DESCRIPTION
Aeroflex’s ACT8518 is a radiation tolerant, 32 channel multiplexer MCM (multi-chip module) with
electrostatic discharge (ESD) protection on all channel inputs.
The ACT8518 has been specifically designed to meet exposure to radiation environments. It is available in
a 96 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 ACT8518
is ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The ACT8518 consists of two 16 channel multiplexers arranged as shown in the Block Diagram. The
ACT8518 design is inherently radiation tolerant.
A SECTION
Sixteen (16) channels addressable by bus A0~A3, in one 16 channel block including enable.
B SECTION
Sixteen (16) channels addressable by bus B0~B3, in one 16 channel block including enable.
www.aeroflex.com/mux
Standard Products
November 18, 2008
Note: Aeroflex Plainview does not currently have a DSCC certified Radiation Hardened Assurance Program.
2
SCD8518 Rev D 11/18/08 Aeroflex Plainview
CH 0
CH 15
•
•
•
EN 0-15
CH 16
CH 31
•
•
•
EN 16-31
A0
A1
A2
A3
OUTPUT 16-31
OUTPUT 0-15
B0
B1
B2
B3
MUX 1
16
16
16
VR
VR
+VEE -VEE
16
MUX 2
ACT8518 32 – CHANNEL ANALOG MUX BLOCK DIAGRAM
SECTION A
SECTION B
VREF
GND
3
SCD8518 Rev D 11/18/08 Aeroflex Plainview
ABSOLUTE MAXIMUM RATINGS 1/
Parameter Range Units
Case Operating Temperature Range -55 to +125 °C
Storage Temperature Range -65 to +150 °C
Supply Voltage
+VEE (Pin 44)
-VEE (Pin 46)
VREF (Pin 48)
+20
-20
+7.5
V
V
V
Digital Input Overvoltage
VEN (Pins 5, 92), VA (Pins 1, 3, 93, 95), VB (Pins 2, 4, 94, 96) < VREF +.5
> GND -.5 V
V
Analog Input Over Voltage
VS ±18V V
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 Volt age -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, VREF, followed by +VEE.
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
(TC = -55°C TO +125°C, -VEE = -15V, VREF = +5.0V, +VEE= +15V - UNLESS OTHERWISE SPECIFIED)
Parameter Symbol Conditions Min Max Units
Supply Current +IEE VEN(0-31) = VA(0-3)A = VA(0-3)B = 0 0 1 mA
-IEE VEN(0-31) = VA(0-3)A = VA(0-3)B = 0 -1 0 mA
+ISBY VEN(0-31) = 4V, VA(0-3)A = VA(0-3)B = 0 7/01mA
-ISBY VEN(0-31) = 4V, VA(0-3)A = VA(0-3)B = 0 7/-10mA
Address Input Current IAL(0-3)AVA = 0V -1 1 μA
IAH(0-3)AVA = 5V -1 1 μA
IAL(0-3)BVB = 0V -1 1 μA
IAH(0-3)BVB = 5V -1 1 μA
Enable Input Current IENL(0-15) VEN(0-15) = 0V -1 1 μA
IENH(0-15) VEN(0-15) = 5V -1 1 μA
IENL(16-31) VEN(16-31) = 0V -1 1 μA
IENH(16-31) VEN(16-31) = 5V -1 1 μA
4
SCD8518 Rev D 11/18/08 Aeroflex Plainview
Positive Input Leakage
Current CH0-CH31 +ISOFFOUTPUT VIN = +10V, VEN = 4V, output and all unused MUX inputs
under test = -10V 2/, 3/-100 +1000 nA
Negative Input Leakage
Current CH0-CH31 -ISOFFOUTPUT VIN = -10V, VEN = 4V, output and all unused MUX inputs
under test = +10V 2/, 3/-100 +1000 nA
Output Leakage
Current OUTPUTS
(pins 25 & 70) +IDOFFOUTPUT VOUT = +10V, VEN = 4V, output and all unused MUX
inputs under test = -10V 3/, 4/-100 +100 nA
Output Leakage
Current OUTPUTS
(pins 25 & 70) -IDOFFOUTPUT VOUT = -10V , V EN = 4V, output and all unused MUX inputs
under test = +10V 3/, 4/-100 +100 nA
Input Clamped Voltage
CH0 - CH31 +VCLMP VEN = 4V, all unused MUX inpu ts under test
are open. 3/+25°C
+125°C
-55°C
18.0
18.0
17.5
23.0
23.5
22.5
V
V
V
Input Clamped Voltage
CH0 - CH31 -VCLMP +25°C
+125°C
-55°C
-23.0
-23.5
-22.5
-18.0
-18.0
-17.5
V
V
V
Switch ON Resistance
OUTPUTS
(pins 25 & 70)
6/
RDS(ON)(0-31)AVIN = +15V, VEN = 0.8V, IOUT = -1mA 2/, 3/, 5/ 200 1000 Ω
RDS(ON)(0-31)BVIN = +5V, VEN = 0.8V, IOUT = -1mA 2/, 3/, 5/ 200 1500 Ω
RDS(ON)(0-31)CVIN = -5V, VEN = 0.8V, IOUT = +1mA 2/, 3/, 5/ 200 2500 Ω
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). VB
is the applied input voltage to the address lines B(0-3).
2/ VIN is the applied input voltage to the input channels CH0-CH31.
3/ VEN is the applied input voltage to the enable lines En(0-15), En(16-31).
4/ VOUT is the applied input voltage to the output lines OUTPUT(0-15), OUT PUT(16-31).
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/ The ACT8518 cannot be operated with analog inputs from -15 to -5 volts.
7/ Not tested, guaranteed to the specified limits.
SWITCHING CHARACTERISTICS
(Tc = -55°C to +125°C, -VEE = -15V, VREF = +5.0V, +VEE = +15V -- Unless otherwise specified)
Parameter Symbol Conditions Min Max Units
Switching Test MUX tAHL RL = 10KΩ, CL = 50pF 10 1000 ns
tALH 10 1000 ns
tONEN RL = 1KΩ, CL = 50pF 10 1000 ns
tOFFEN 10 1000 ns
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/ (continued)
(TC = -55°C TO +125°C, -VEE = -15V, VREF = +5.0V, +VEE= +15V - UNLESS OTHERWISE SPECIFIED)
Parameter Symbol Conditions Min Max Units
5
SCD8518 Rev D 11/18/08 Aeroflex Plainview
TRUTH TABLE (CH0 – CH15)
B3 B2 B1 B0 EN(0-15) "ON" CHANNEL 1/
XXXX H NONE
LLLL L CH0
LLLH L CH1
LLHL L CH2
LLHH L CH3
LHLL L CH4
LHLH L CH5
LHHL L CH6
LHHH L CH7
HLLL L CH8
HLLH L CH9
HLHL L CH10
HLHH L CH11
H H L L L CH12
H H L H L CH13
HHHL L CH14
HHHH L CH15
1/ Between CH0-15 and OUTPUT (0-15)
TRUTH TABLE (CH16 – CH31)
A3 A2 A1 A0 EN(16-31) "ON" CHANNEL 1/
XXXX H NONE
LLLL L CH16
LLLH L CH17
L L H L L CH18
L L H H L CH19
L H L L L CH20
LHLH L CH21
L H H L L CH22
LHHH L CH23
HLLL L CH24
H L L H L CH25
HLHL L CH26
H L H H L CH27
H H L L L CH28
H H L H L CH29
HHHL L CH30
HHHH L CH31
1/ Between CH16-31 and OUTPUT (16-31)
6
SCD8518 Rev D 11/18/08 Aeroflex Plainview
ACT8518 SWITCHING DIAGRAMS
4.0V
50%
~3V to 12.5V
50%
0V
t
OFF
ENt
ON
EN
Definition of t
ON
EN
and t
OFF
EN
0.8V
0V
0V
50%
50%
4.0V
0.8V
50%
11.6V MIN
11.6V MIN
4.0V
Address Lines
t
A
HL
50%
NOTE: f = 10KHz, Duty cycle = 50%.
(A0 - A3)
MUX Output
MUX Output
MUX Output
Address Lines
(A0 - A3)
EN
Lines
t
A
LH
Definition of t
A
HL
Definition of t
A
LH
0.8V
7
SCD8518 Rev D 11/18/08 Aeroflex Plainview
PIN NUMBERS & FUNCTIONS
ACT8518 – 96 Leads Ceramic QUAD Flat Pack
Pin # Function Pin # Function Pin # Function
1A2 33 CH11 65 GND
2B2 34 GND 66 GND
3A3 35 CH12 67 NC
4B3 36 GND 68 NC
5EN 0-15 37 CH13 69 NC
6NC 38 GND 70 Output V(16-31)
7CH0 39 CH14 71 GND
8GND 40 GND 72 GND
9CH1 41 CH15 73 CH31
10 GND 42 GND 74 CH30
11 CH2 43 NC 75 CH29
12 GND 44 +VEE 76 CH28
13 CH3 45 NC 77 CH27
14 GND 46 -VEE 78 CH26
15 CH4 47 NC 79 CH25
16 GND 48 VREF 80 CH24
17 CH5 49 NC 81 CH23
18 GND 50 CASE GND 82 CH22
19 CH6 51 GND 83 CH21
20 GND 52 GND 84 CH20
21 CH7 53 GND 85 CH19
22 GND 54 GND 86 CH18
23 GND 55 GND 87 CH17
24 GND 56 GND 88 CH16
25 Output V(0-15) 57 GND 89 GND
26 NC 58 GND 90 GND
27 CH8 59 GND 91 NC
28 GND 60 GND 92 EN 16-31
29 CH9 61 GND 93 A0
30 GND 62 GND 94 B0
31 CH10 63 GND 95 A1
32 GND 64 GND 96 B1
NOTE: It is recommended that all "NC" or "no connect pin" be grounded. This eliminates or minimizes any ESD or
static buildup.
SCD8518 Rev D 11/18/08 8
PLAINVIEW, NEW YORK
Toll Free: 800-THE-1553
Fax: 516-694-6715
SE AND MID-ATLANTIC
Tel: 321-951-4164
Fax: 321-951-4254
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Tel: 603-888-3975
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CENTRAL
Tel: 719-594-8017
Fax: 719-594-8468
www.aeroflex.com info-ams@aeroflex.com
Aeroflex Microelectronic Solutions reserves the righ t 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 liab ility is assumed as a result of use of
this product. No patent licenses are implied.
Our passion for performance is defined by three
attributes represented by these three icons:
solution-minded, perform a nce -driven and cu stom e r-foc use d
EXPORT CONTROL: EXPOR T 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.)
1.320 SQ
Pin 85
Pin 12
Pin 60Pin 37
Pin 13
Pin 36
Pin 61
Pin 84
Pin 1
FLAT PACKAGE OUTLINE
MAX
(23 Spaces at .050)
Tol Non-Cum
4 Sides
.0165
±.003
1.150 ±.005
.200
MAX
(.400)
Note: Outs ide ceramic tie bars
not shown for clarity. Contact
factory for details.
.006
±.001
V
ORDERING INFORMATION
Model Number Screening DSCC SMD # Package
ACT8518-S Military Temperature, -55°C to +125°C,
Screened in accordance with MIL-PRF-38534, Class K
NA QUAD Flat Pack
ACT8518-7 Commercial Flow, +25°C testing only
ACT8518-201-1S In accordance with DSCC SMD 5962-0920401KXC
