Standard Products
Datasheet
RadHard-by-Design
RHD8544 Dual 16-Channel Analog Multiplexer
www.aeroflex.com/RHDseries
May 14, 2015
FEATURES
32 Channels provided by two independent 16-channel multiplexers
Single power supply operation at +3.3V to +5V
Radiation performance
- Total dose:
>1Mrad(Si), Dose rate = 50 - 300 rads(Si)/s
- ELDRS Immune
- SEL Immune:
>100 MeV-cm
2
/mg
- Neutron Displacement Damage:
>10
14
neutrons/cm
2
Full military temperature range
Low power consumption < 11.2mW
CMOS analog switching allows rail to rail operation and low switch impedance
Separate address buses A
(0-3)
& B
(0-3)
and enable EN(
0-15)
& EN
(16-31
)
Designed for aerospace and high reliability space applications
Packaging – Hermetic ceramic
- 56 leads, 0.800"Sq x 0.200"Ht quad flat pack
- Weight - 6 grams max
Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
Aeroflex’s RHD8544 is a radiation hardened, single supply, dual 16-Channel Multiplexer MCM (multi-chip
module). The RHD8544 design uses specific circuit topology and layout methods to mitigate total
ionization dose effects and single event latchup. These characteristics make the RHD8544 especially suited
for the harsh environment encountered in Deep Space missions. 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 Class K, the RHD8544 is ideal for
demanding military and space applications.
ORGANIZATION AND APPLICATION
The RHD8544 consists of two independent 16-channel multiplexers arranged as shown in the block
diagram.
A Section
Sixteen (16) channels addressable by bus A
(0-3)
, enabled by EN(
0-15)
and outputted on Output1(
0-15).
B Section
Sixteen (16) channels addressable by bus B
(0-3)
, enabled by EN(
16-31)
and outputted on Output2(
16-31).
SCD8544 Rev C
SECTION A
CH 0
16
CH 15
•
•
•
MUX 1
OUTPUT1 (0-15)
EN (0-15)
A0
A1
A2
A3
SECTION B
CH 16
16
CH 31
•
•
•
MUX 2
OUTPUT2 (16-31)
EN (16-31)
B0
B1
B2
B3
+V
CC
GND
RHD8544: DUAL 16-CHANNEL ANALOG MUX BLOCK DIAGRAM
SCD8544 Rev C 5/14/15
2
Aeroflex Plainview
ABSOLUTE MAXIMUM RATINGS
1/
Parameter
Case Operating Temperature Range
Storage Temperature Range
Supply Voltage
+V
CC
(Pin 18)
Digital Input Over Voltage
V
EN
0-15 (Pin 13), V
EN
16-31 (Pin 44), V
A
(Pins 14, 15, 16, 17), V
B
(Pins 40, 41, 42, 43)
Analog Input Over Voltage
V
IN
(CH0-CH31)
Notes:
1/ All measurements are made with respect to ground.
NOTICE: Stresses above those listed under "Absolute Maximum Ratings" 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.
Range
-55 to +125
-65 to +150
+7.0
< V
CC
+0.4
> GND -0.4
< V
CC
+0.4
> GND -0.4
Units
°C
°C
V
V
V
V
RECOMMENDED OPERATING CONDITIONS
1/
Symbol
+V
CC
V
IL
V
IH
Power Supply Voltage
Low Level Input Voltage
High Level Input Voltage
Parameter
Typical
3.3 to 5.0
30% V
CC
70% V
CC
Units
V
V
V
DC ELECTRICAL PERFORMANCE CHARACTERISTICS
1/
(Tc = -55°C to +125°C, +V
CC
= +5V - Unless otherwise specified)
Conditions
EN = 30% V
CC
EN = 70% V
CC
V
A
= 30% V
CC
+25°C
+125°C
I
AH
V
A
= 70% V
CC
+25°C
+125°C
I
ENL
Enable Input Current
EN(0-15), EN(16-31)
I
ENH
High Input
Leakage Current
(CH0-CH31)
Low Input
Leakage Current
(CH0-CH31)
V
EN
= 70%V
CC
V
IN
= +5V, V
EN
=70% V
CC
,
Output and all unused MUX inputs under test
= 0V
V
IN
= 0V, V
EN
=70% V
CC
Output and all unused MUX inputs under test
= +5V
V
EN
= 30% V
CC
+25°C
+125°C
+25°C
+125°C
I
INLK5
+25°C
+125°C
+25°C
+125°C
Parameter
Supply Current
+V
CC
Symbol
+I
CC
+I
SBY
I
AL
Address Input Current
A(0-3), B(0-3)
Min
0
0
-5
-50
-5
-50
-5
-50
-5
-50
-5
-50
-5
-50
Max
1.6
400
5
50
5
50
5
50
5
50
5
50
5
50
Units
mA
A
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
nA
I
INLK0
SCD8544 Rev C 5/14/15
3
Aeroflex Plainview
DC ELECTRICAL PERFORMANCE CHARACTERISTICS
1/
(continued)
(Tc = -55°C to +125°C, +V
CC
= +5V - Unless otherwise specified)
Conditions
V
OUT
= +5V, V
EN
= 70% V
CC
,
All inputs grounded except channel being
tested 3/, 4/
V
IN
= 0V, V
EN
= 30% V
CC
I
OUT
= +1mA
V
IN
= +2.5V, V
IN
= +5V, V
EN
= 30% V
CC
I
OUT
= -1mA
2/, 3/, 5/, 6/
+25°C
+125°C
-55°C
+25°C
+125°C
Parameter
Output Leakage Current
V
OUT
(pins 12 & 45)
Switch ON Resistance
OUTPUTS
(pins 12 & 45)
Symbol
I
OUTLK
Min
-5
-50
-
-
-
Max
5
50
500
750
1000
Units
nA
nA
R
DSON
Notes:
1/ Measure inputs sequentially. Ground all unused inputs of the device under test. V
A
is the applied input voltage to the address lines A(0-3). V
B
is
the applied input voltage to the address lines B(0-3).
2/ V
IN
is the applied input voltage to the input channels (CH0-CH31).
3/ V
EN
0-15 is the applied input voltage to the enable line EN (0-15). V
EN
16-31 is the applied input voltage to the enable line EN (16-31)
4/ V
OUT
is the applied input voltage to the output lines OUTPUT1 (0-15), OUTPUT2 (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 RHD8544 cannot be operated with analog inputs below 0 volts.
(Tc = -55°C to +125°C, +V
CC
= +5V - Unless otherwise specified)
Parameter
Symbol
t
A
HL
Address to Output Delay
t
A
LH
V
OUT
Low to High Transition
Conditions
Temp
-55°C
V
OUT
High to Low Transition
+25°C
+125°C
-55°C
+25°C
+125°C
-55°C
Enable to Output Delay
t
ON
EN
t
OFF
EN
V
EN
= 30% V
CC
(Enabled)
V
EN
= 70% V
CC
(Disabled)
+25°C
+125°C
ALL
Min
10
10
10
10
10
10
10
10
10
10
Max
150
150
200
150
150
200
150
150
200
200
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SWITCHING CHARACTERISTICS
SCD8544 Rev C 5/14/15
4
Aeroflex Plainview
TRUTH TABLE (CH0–CH15)
A3
X
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
A2
X
L
L
L
L
H
H
H
H
L
L
L
L
H
H
H
H
A1
X
L
L
H
H
L
L
H
H
L
L
H
H
L
L
H
H
A0
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/ (OUTPUT 1)
NONE
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
CH10
CH11
CH12
CH13
CH14
CH15
1/ Between (CH0-CH15) and OUTPUT1 (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, 2/ (OUTPUT 2)
NONE
CH16
CH17
CH18
CH19
CH20
CH21
CH22
CH23
CH24
CH25
CH26
CH27
CH28
CH29
CH30
CH31
2/ Between (CH16-CH31) and OUTPUT2 (16-31)
SCD8544 Rev C 5/14/15
5
Aeroflex Plainview
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