Standard Products
ACT8500 64-Channel Analog Multiplexer Module
Radiation Hardened & ESD Protected
www.aeroflex.com/RADHARD
February 17, 2005
FEATURES
❑
Radiation Performance
- Radiation 300K(Si) Total Dose
- No Latch-Up or SEE to 120MeV/cm
2
/mg
Full Military Temperature Range
Low Power Consumption < 90mW
64 Channels Provided by Six (6) HS-1840RH Multiplexers
Two Address Busses (A0-3 & B0-3)
,
and Four Enable lines afford flexible organization
All Channel Inputs are Over Voltage protected by ±20V Transorbs (Power On or Off)
Fast Access Time 1500ns
Break-Before-Make Switching
High Analog Input Impedance (with Power On or Off)
No Latch-Up
Packaging – Hermetic Ceramic Quad Flat Pack
- 96 Leads, 1.32"Sq x .20"Ht Quad Flat Pack
- Typical Weight 15 grams
DSCC SMD 5962-0050201KXC
*
NOTE: Aeroflex Plainview does not currently have a DSCC certified Radiation Hardened Assurance Program
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
❑
* Not approved for RAD Hard Version of SMD at this time
Radiation information available upon request
GENERAL DESCRIPTION
Aeroflex’s ACT8500 is a radiation hardened, 64 channel multiplexer MCM (multi-chip module) with ESD protection for use in
space applications. It is designed to provide a high input impedance with power on or off. All channel inputs have electrostatic
discharge protection.
The ACT8500 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 (QFP). It is guaranteed operational from -55°C to +125°C. The ACT8500 is
ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The ACT8500 consists of six 16 channel multiplexers arranged as shown in the Block Diagram.
A SECTION
32 channels addressable by Bus A
0
~A
3
, in two 16 channel blocks, each block enabled separately. Each block connects the
addressed channel to two outputs, "Output" and "Current". This technique enables selecting and reading a remote resistive sensor
without the multiplexer 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.
B SECTION
32 channels addressable by Bus B
0
~B
3
, in two 16 channel blocks, each block enabled separately. Each block connects the
addressed channel to one output. By paralleling the channel inputs and enables, this section can be converted to act like one of the
16 channel blocks of the A section.
SCD8500 Rev G
SECTION B
16
CH 0
16
CH 16
MUX 1
OUTPUT 0-15
CH 31
16
16
SCD8500 Rev G
CH 15
•
•
•
VR
MUX 2
VR
•
•
•
OUTPUT 16-31
EN 0-15
EN 16-31
B0
B1
B2
B3
SECTION A
16
CH 32
16
CH 48
MUX 3
OUTPUT 32-47
EN 48-63
CH 63
16
16
CH 47
•
•
•
VR
VR
•
•
•
MUX 4
OUTPUT 48-63
EN 32-47
2
16
16
+V
DD
-V
EE
MUX 5
V
REF
CURRENT 32-47
MUX 6
CURRENT 48-63
GND
A0
A1
A2
A3
ACT8500 64 – CHANNEL ANALOG MUX BLOCK DIAGRAM
ABSOLUTE MAXIMUM RATINGS
1/
Parameter
Case Operating Temperature Range
Storage Temperature Range
Supply Voltage
+V
CC
(Pin 44)
-V
EE
(Pin 46)
V
REF
(Pin 48)
Digital Input Overvoltage
V
EN
(Pins 5, 6, 91, 92), V
A
(Pins 93, 95, 1, 3), V
B
(Pins 94, 96, 2, 4)
Analog Input Over Voltage
V
S
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
effect device reliability.
Range
-55 to +125
-55 to +150
+20
-20
+20
< V
R
+4
> GND -4
±18
Units
°C
°C
V
V
V
V
V
V
RECOMMENDED OPERATING CONDITIONS
Symbol
+V
CC
-V
EE
V
REF
V
AL
V
AH
+15V Power Supply Voltage
-15V Power Supply Voltage
Reference Voltage
Logic Low Level
Logic High Level
Parameter
Typical
+15.0
-15.0
+5.00
+0.8
+4.0
Units
V
V
V
V
V
DC ELECTRICAL PERFORMANCE CHARACTERISTICS
1/
(Tc = -55°C to +125°C, +V
EE
= +15V, -V
EE
= -15V, V
REF
= +5.0V, Unless otherwise specified)
Parameter
Supply Current
Symbol
I+
I-
+I
SBY
-I
SBY
Conditions
V
EN
(0-63)
= V
A
(0-3)
A
= V
A
(0-3)
B
= 0
V
EN
(0-63)
= V
A
(0-3)
A
= V
A
(0-3)
B
= 0
V
EN
(0-63)
= 4V, V
A
(0-3)
A
= V
A
(0-3)
B
= 0 6/
V
EN
(0-63)
= 4V, V
A
(0-3)
A
= V
A
(0-3)
B
= 0 6/
V
A
= 0V 1/
V
A
= 5V 1/
V
A
= 0V 1/
V
A
= 5V 1/
V
EN
(0-15)
= 0V
V
EN
(0-15)
= 5V
V
EN
(16-31)
= 0V
V
EN
(16-31)
= 5V
V
EN
(32-47)
= 0V
V
EN
(32-47)
= 5V
V
EN
(48-63)
= 0V
V
EN
(48-63)
= 5V
3
Min
0.3
-3
0.3
-3
-2
-2
-4
-4
-1
-1
-1
-1
-2
-2
-2
-2
Max
3
-0.3
3
-0.3
2
2
4
4
1
1
1
1
2
2
2
2
Units
mA
mA
mA
mA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
Address Input Current
I
AL
(0-3)
B
I
AH
(0-3)
B
I
AL
(0-3)
A
I
AH
(0-3)
A
Enable Input Current
I
ENL
(0-15)
I
ENH
(0-15)
I
ENL
(16-31)
I
ENH
(16-31)
I
ENL
(32-47)
I
ENH
(32-47)
I
ENL
(48-63)
I
ENH
(48-63)
SCD8500 Rev G
DC ELECTRICAL PERFORMANCE CHARACTERISTICS
1/
(con’t)
(Tc = -55°C to +125°C, +V
EE
= +15V, -V
EE
= -15V, V
REF
= +5.0V, Unless otherwise specified)
Parameter
Positive Input
Leakage Current
CH0-CH63
Symbol
+I
SOFFOUT
-
PUT
(
ALL
)
+I
SOFFCUR
-
RENT
(
ALL
)
Conditions
V
IN
= +10V, V
EN
= 4V, output and all unused
MUX inputs under test = -10V 2/, 3/
Min
-100
-100
-100
-100
-100
Max
+700
+700
+700
+700
+100
+100
+100
Units
nA
nA
nA
nA
nA
nA
nA
-I
SOFFOUT
-
Negative Input Leakage
Current CH0-CH63
Output Leakage Current
OUTPUTS
(pins 25, 26, 68 & 70)
CURRENTS
(pins 67 & 69)
Output Leakage Current
OUTPUTS
(pins 25, 26, 68 & 70)
CURRENTS
(pins 67 & 69)
Input Clamped Voltage
CH0 - CH63
Input Clamped Voltage
CH0 - CH63
PUT
(
ALL
)
-I
SOFFCUR
-
RENT
(
ALL
)
V
IN
= -10V, V
EN
= 4V, output and all unused
MUX inputs under test = +10V 2/, 3/
+I
DOFFOUT
-
PUT
(
ALL
)
+I
DOFFCUR
-
RENT
(
ALL
)
V
OUT
= +10V, V
EN
= 4V, output and all
unused MUX inputs under test = -10V 3/, 4/
-100
-100
-I
DOFFOUT
-
PUT
(
ALL
)
-I
DOFFCUR
-
RENT
(
ALL
)
V
OUT
= -10V, V
EN
= 4V, output and all
unused MUX inputs under test = +10V 3/, 4/
-100
V
EN
= 4V, all unused MUX inputs under test
are open. 3/
+25°C
+125°C
-55°C
+25°C
+125°C
-55°C
+100
23.0
23.5
22.5
-18.0
-18.0
-17.5
3000
3000
3000
3000
3000
3000
nA
V
V
V
V
V
V
+V
CLMP
(0-63)
18.0
18.0
17.5
-23.0
-23.5
-22.5
500
500
500
500
500
500
-V
CLMP
(0-63)
R
DS
(
ON
)
(0-63)
A
V
IN
= +15V, V
EN
= 0.8V, I
OUT
= -1mA
2/, 3/, 5/
V
IN
= +5V, V
EN
= 0.8V, I
OUT
= -1mA
2/, 3/, 5/
V
IN
= -5V, V
EN
= 0.8V, I
OUT
= +1mA
2/, 3/, 5/
V
IN
= +15V, V
EN
= 0.8V, I
OUT
= -1mA
2/, 3/, 5/
V
IN
= +5V, V
EN
= 0.8V, I
OUT
= -1mA
2/, 3/, 5/
V
IN
= -5V, V
EN
= 0.8V, I
OUT
= +1mA
2/, 3/, 5/
Ω
Ω
Ω
Ω
Ω
Ω
Switch ON Resistance
OUTPUTS
(pins 25, 26, 68 & 70)
R
DS
(
ON
)
(0-63)
B
R
DS
(
ON
)
(0-63)
C
Switch ON Resistance
CURRENTS
(pins 67 & 69)
R
DS
(
ON
)
(32-63)
A
R
DS
(
ON
)
(32-63)
B
R
DS
(
ON
)
(32-63)
C
Notes:
1/ Measure inputs sequentially. Ground all unused inputs of the MUX under test. VA is the applied input voltage to the MUXes’ address lines A(0-3).
V
B
is the applied input voltage to the MUXes’ address lines B(0-3).
2/ V
IN
is the applied input voltage to the MUXes’ input channel CH0-CH63.
3/ V
EN
is the applied input voltage to the MUXes’ enable line En(0-15), En(16-31), En(32-47) and En(48-63).
4/ V
OUT
is the applied input voltage to the MUXes’ output line OUTPUT(1-15), OUTPUT(16-31), OUTPUT(32-47), OUTPUT(48-63),
CURRENT(32-47) and CURRENT(48-63).
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/ If not tested, shall be guaranteed to the specified limits.
Switching Characteristics
(Tc = -55°C to +125°C, V
DD
= +15V, V
EE
= -15V, V
R
= +5.0V, Unless otherwise specified)
Parameter
Switching Test MUX
Symbol
t
ON
A
t
OFF
A
t
ON
EN
t
OFF
EN
Conditions
R
L
= 10K
Ω,
C
L
= 50pF
R
L
= 10K
Ω,
C
L
= 50pF
Tc = +25°C, +125°C
Tc = -55°C
R
L
= 1K
Ω,
C
L
= 50pF
4
Min
10
10
10
10
10
Max
1500
2000
5000
1500
1000
Units
ns
ns
ns
ns
ns
SCD8500 Rev G
TRUTH TABLE (CH0 – CH15)
B3
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
B2
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
B1
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
B0
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
EN(0-15)
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
"ON" CHANNEL
1/
NONE
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
1/ Between CH0-15 and OUTPUT (0-15)
TRUTH TABLE (CH16 – CH31)
B3
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
B2
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
B1
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
B0
X
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
EN(16-31)
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
"ON" CHANNEL
1/
NONE
CH16
CH17
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
1/ Between CH16-31 and OUTPUT (16-31)
SCD8500 Rev G
5
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