RHD8540 (4/15)

Standard Products
Datasheet
RadHard-by-Design
RHD8540 64-Channel Analog Multiplexer
32-Channel Kelvin Measurement Configured
www.aeroflex.com/RHDseries
April 1, 2015
FEATURES

64 channels (32 Kelvin measurement channels) provided by six 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-cm2/mg
- Neutron Displacement Damage:
>1014 neutrons/cm2


Full military temperature range

Low power consumption < 33.6 mW

CMOS analog switching allows rail to rail operation and low switch impedance

Two address busses A(0-3) & B(0-3) and four enable lines afford flexible organization

Designed for aerospace and high reliability space applications

Packaging – Hermetic ceramic
- 96 leads, 1.320"Sq x 0.200"Ht quad flat pack
- Weight - 15 grams max

Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
Aeroflex’s RHD8540 is a radiation hardened, single supply, 64-Channel Multiplexer MCM (multi-chip module). The
RHD8540 design uses specific circuit topology and layout methods to mitigate total ionization dose effects and single
event latchup. These characteristics make the RHD8540 especially suited for the harsh environment encountered in
Deep Space missions. 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
Class K, the RHD8540 is ideal for demanding military and space applications.
ORGANIZATION AND APPLICATION
The RHD8540 consists of four, single supply, 16-Channel Multiplexers arranged as shown in the Block Diagram. The
RHD8540 design is inherently radiation tolerant.
The device will not latch with SEU events to above 100MeV-cm2/mg. Total dose degradation is minimal to above
1Mrad(Si). Displacement damage environments to neutron fluence equivalents in the mid 1014 neutrons per cm2 range
are readily tolerated. There is no sensitivity to low-dose rate (ELDRS) effects. SEU effects are application dependent.
A SECTION
Thirty-two (32) Kelvin measurement channels addressable by bus A0~A3, 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
Thirty-two (32) channels addressable by bus B0~B3, 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.
SCD8540 Rev A
SCD8540 Rev A 4/1/15
2
Aeroflex Plainview
GND
VCC
A0
A1
A2
A3
EN 32-47
CH 47
•
•
•
CH 32
B0
B1
B2
B3
EN 0-15
CH 15
•
•
•
CH 0
16
16
16
CH 63
•
•
•
CH 48
EN 48-63
CURRENT 32-47
OUTPUT 32-47
CH 31
EN 16-31
SECTION A
OUTPUT 0-15
•
•
•
CH 16
16
16
16
RHD8540 64 – CHANNEL ANALOG MUX BLOCK DIAGRAM
MUX 5
MUX 3
MUX 1
SECTION B
MUX 6
MUX 4
MUX 2
CURRENT 48-63
OUTPUT 48-63
OUTPUT 16-31
ABSOLUTE MAXIMUM RATINGS 1/
Parameter
Range
Units
Case Operating Temperature Range
-55 to +125
°C
Storage Temperature Range
-65 to +150
°C
Supply Voltage
+VCC (Pin 44)
+3.0 to +7.0
V
Digital Input Overvoltage
VEN (Pins 5, 6, 91, 92), VA (Pins 1, 3, 93, 95), VB (Pins 2, 4, 94, 96)
< VCC +0.4
> GND -0.4
V
V
Analog Input Over Voltage
VIN (CH0-CH63)
< VCC +0.4
> GND -0.4
V
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.
RECOMMENDED OPERATING CONDITIONS 1/
Symbol
Typical
Units
Power Supply Voltage
3.3 to 5.0
V
VENL, VAL
Logic Low Level
30% VCC
V
VENH, VAH
Logic High Level
70% VCC
V
+VCC
Parameter
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/
(Tc = -55°C to +125°C, +VCC = +5V - Unless otherwise specified)
Parameter
Supply Current
+VCC
Symbol
Conditions
SCD8540 Rev A 4/1/15
Max
Units
+ICC
EN = 30% VCC
0
4.8
mA
+ISBY
EN = 70% VCC
0
1.2
mA
IAL(0-3)A
VA = 30% VCC
+25°C
-20
20
nA
+125°C
-200
200
nA
+25°C
-10
10
nA
+125°C
-100
100
nA
+25°C
-20
20
nA
+125°C
-200
200
nA
+25°C
-10
10
nA
+125°C
-100
100
nA
+25°C
-5
5
nA
+125°C
-50
50
nA
+25°C
-10
10
nA
+125°C
-100
100
nA
+25°C
-5
5
nA
+125°C
-50
50
nA
+25°C
-10
10
nA
+125°C
-100
100
nA
IAL(0-3)B
VA = 30% VCC
IAH(0-3)A
VA = 70% VCC
IAH(0-3)B
VA = 70% VCC
IENL(0-15)
IENL(16-31)
VEN = 30% VCC
Address Input Current
A(0-3)
Enable Input Current
EN
Min
IENL(32-47)
IENL(48-63)
VEN = 30% VCC
IENH(0-15)
IENH(16-31)
VEN = 70% VCC
IENH(32-47)
IENH(48-63)
VEN = 70% VCC
3
Aeroflex Plainview
DC ELECTRICAL PERFORMANCE CHARACTERISTICS 1/ (continued)
(Tc = -55°C to +125°C, +VCC = +5V - Unless otherwise specified)
Parameter
High Input
Leakage Current
(CH0-CH63)
Low Input
Leakage Current
(CH0-CH63)
Output Leakage Current
VOUT
(pins 25,26, 68 & 70)
CURRENTS
(pins 67 & 69)
Switch ON Resistance
OUTPUTS
(pins 25,26, 68 & 70)
CURRENTS
(pins 67 & 69)
Symbol
Conditions
IINLK5
VIN = +5V, VEN = 70% VCC,
Output and all unused MUX inputs under test = 0V
IINLK0
VIN = 0V, VEN = 70% VCC,
Output and all unused MUX inputs under test =
+5V
IOUTLK
VOUT = +5V, VEN = 70% VCC,
All inputs grounded except channel being tested.
3/, 4/
VIN = 0V,
VEN = 30% VCC,
VIN = +2.5V, VEN = 30% VCC,
VIN = +5V,
VEN = 30% VCC,
2/, 3/, 5/, 6/
RDS(ON)
Min
Max
Units
+25°C
-5
5
nA
+125°C
-50
50
nA
+25°C
-5
5
nA
+125°C
-50
50
nA
+25°C
-5
5
nA
+125°C
-50
50
nA
-55°C
-
500

+25°C
-
750

+125°C
-
1000

IOUT = +1mA
IOUT = -0.6mA
IOUT = -1mA
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-CH63).
3/ VEN is the applied input voltage to the enable lines EN (0-15), EN (16-31), EN (32-47) and EN (48-63).
4/ VOUT is the applied input voltage to the output lines OUTPUT1(0-15), OUTPUT2(16-31), OUTPUT3(32-47) and OUTPUT4(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/ The RHD8540 cannot be operated with analog inputs below 0 volts.
SWITCHING CHARACTERISTICS
(Tc = -55°C to +125°C, +VCC = +5V - Unless otherwise specified)
Parameter
Symbol
tAHL
Conditions
VOUT High to Low Transition
Address to Output Delay
tALH
Enable to Output Delay
tONEN
tOFFEN
SCD8540 Rev A 4/1/15
VOUT Low to High Transition
VEN = 30% VCC (Enabled)
VEN = 70% VCC (Disabled)
4
Temp
Min
Max
Units
-55°C
10
150
ns
+25°C
10
150
ns
+125°C
10
200
ns
-55°C
10
150
ns
+25°C
10
150
ns
+125°C
10
200
ns
-55°C
10
150
ns
+25°C
10
150
ns
+125°C
10
200
ns
ALL
10
200
ns
Aeroflex Plainview
TRUTH TABLE (CH0 – CH15)
TRUTH TABLE (CH16 – CH31)
B3
B2
B1
B0
EN(0-15)
"ON" CHANNEL 1/
B3
B2
B1
B0
EN(16-31)
"ON" CHANNEL 2/
X
X
X
X
H
NONE
X
X
X
X
H
NONE
L
L
L
L
L
CH0
L
L
L
L
L
CH16
L
L
L
H
L
CH1
L
L
L
H
L
CH17
L
L
H
L
L
CH2
L
L
H
L
L
CH18
L
L
H
H
L
CH3
L
L
H
H
L
CH19
L
H
L
L
L
CH4
L
H
L
L
L
CH20
L
H
L
H
L
CH5
L
H
L
H
L
CH21
L
H
H
L
L
CH6
L
H
H
L
L
CH22
L
H
H
H
L
CH7
L
H
H
H
L
CH23
H
L
L
L
L
CH8
H
L
L
L
L
CH24
H
L
L
H
L
CH9
H
L
L
H
L
CH25
H
L
H
L
L
CH10
H
L
H
L
L
CH26
H
L
H
H
L
CH11
H
L
H
H
L
CH27
H
H
L
L
L
CH12
H
H
L
L
L
CH28
H
H
L
H
L
CH13
H
H
L
H
L
CH29
H
H
H
L
L
CH14
H
H
H
L
L
CH30
H
H
H
H
L
CH15
H
H
H
H
L
CH31
1/ Between (CH0-CH15) and OUTPUT1(0-15)
2/ Between (CH16-CH31) and OUTPUT2 (16-31)
TRUTH TABLE (CH32 – CH47)
TRUTH TABLE (CH48 – CH63)
A3
A2
A1
A0
EN(32-47)
"ON" CHANNEL 3/
A3
A2
A1
A0
EN(48-63)
"ON" CHANNEL 4/
X
X
X
X
H
NONE
X
X
X
X
H
NONE
L
L
L
L
L
CH32
L
L
L
L
L
CH48
L
L
L
H
L
CH33
L
L
L
H
L
CH49
L
L
H
L
L
CH34
L
L
H
L
L
CH50
L
L
H
H
L
CH35
L
L
H
H
L
CH51
L
H
L
L
L
CH36
L
H
L
L
L
CH52
L
H
L
H
L
CH37
L
H
L
H
L
CH53
L
H
H
L
L
CH38
L
H
H
L
L
CH54
L
H
H
H
L
CH39
L
H
H
H
L
CH55
H
L
L
L
L
CH40
H
L
L
L
L
CH56
H
L
L
H
L
CH41
H
L
L
H
L
CH57
H
L
H
L
L
CH42
H
L
H
L
L
CH58
H
L
H
H
L
CH43
H
L
H
H
L
CH59
H
H
L
L
L
CH44
H
H
L
L
L
CH60
H
H
L
H
L
CH45
H
H
L
H
L
CH61
H
H
H
L
L
CH46
H
H
H
L
L
CH62
H
H
H
H
L
CH47
H
H
H
H
L
CH63
3/ Between (CH32-CH47) and OUTPUT3 (32-47)
SCD8540 Rev A 4/1/15
4/ Between (CH48-CH63) and OUTPUT4 (48-63)
5
Aeroflex Plainview
Address Lines
(A0 - A3)
(B0 - B3)
4.0V
50%
0.8V
3.86V MIN
50%
MUX Output
0V
t AHL
Definition of t AHL
Address Lines
(A0 - A3)
(B0 - B3)
4.0V
50%
0.8V
3.86V MIN
MUX Output
50%
0V
t ALH
Definition of t ALH
4.0V
EN Lines
50%
0.8V
~1V to 4.16V
MUX Output
50%
0V
tONEN
tOFFEN
Definition of tONEN and tOFFEN
NOTE: f = 10KHz, Duty cycle = 50%.
RHD8540 SWITCHING DIAGRAMS
SCD8540 Rev A 4/1/15
6
Aeroflex Plainview
PIN NUMBERS & FUNCTIONS
RHD8540 – 96 Leads Ceramic QUAD Flat Pack
Pin #
Function
Pin #
Function
Pin #
Function
1
A2
33
CH11
65
CH49
2
B2
34
CH27
66
CH48
3
A3
35
CH12
67
Output I(48-63)
4
B3
36
CH28
68
Output V(48-63)
5
EN (0-15)
37
CH13
69
Output I(32-47)
6
EN (16-31)
38
CH29
70
Output V(32-47)
7
CH0
39
CH14
71
GND
8
CH16
40
CH30
72
GND
9
CH1
41
CH15
73
CH47
10
CH17
42
CH31
74
CH46
11
CH2
43
NC
75
CH45
12
CH18
44
+VCC
76
CH44
13
CH3
45
NC
77
CH43
14
CH19
46
NC
78
CH42
15
CH4
47
NC
79
CH41
16
CH20
48
NC
80
CH40
17
CH5
49
NC
81
CH39
18
CH21
50
CASE GND
82
CH38
19
CH6
51
CH63
83
CH37
20
CH22
52
CH62
84
CH36
21
CH7
53
CH61
85
CH35
22
CH23
54
CH60
86
CH34
23
GND
55
CH59
87
CH33
24
GND
56
CH58
88
CH32
25
Output1 (0-15)
57
CH57
89
GND
26
Output2 (16-31)
58
CH56
90
GND
27
CH8
59
CH55
91
EN (48-63)
28
CH24
60
CH54
92
EN (32-47)
29
CH9
61
CH53
93
A0
30
CH25
62
CH52
94
B0
31
CH10
63
CH51
95
A1
32
CH26
64
CH50
96
B1
NOTE: It is recommended that all "NC" or "no connect" pins be grounded. This eliminates or minimizes any ESD or
static buildup.
SCD8540 Rev A 4/1/15
7
Aeroflex Plainview
ORDERING INFORMATION
Model Number
DLA SMD #
Screening
Package
RHD8540-7
-
Commercial Flow, +25°C testing only
RHD8540-S
-
Military Temperature, -55°C to +125°C
Screened in accordance with the individual Test Methods
of MIL-STD-883 for Space Applications
RHD8540-201-1S
5962-1124001KXC
In accordance with DLA SMD
RHD8540-901-1S
5962H1124001KXC
QUAD
Flat Pack
In accordance with DLA Certified RHA Program Plan to RHA
Level "H", 1Mrads(Si)
1.150 ±.005
(23 Spaces at .050)
Tol Non-Cum
4 Sides
Note: Outside ceramic tie bars
not shown for clarity. Contact
factory for details.
Pin 1
Pin 12
.200
MAX
Pin 85
Pin 84
Pin 13
.0165
±.003
1.320 SQ
MAX
Pin 36
(.400)
Pin 61
Pin 60
Pin 37
.006
±.001
FLAT PACKAGE OUTLINE
EXPORT CONTROL:
This product is controlled for export under the U.S. Department of Commerce (DoC). A license may be required prior to the export
of this product from the United States.
www.aeroflex.com/HiRel
[email protected]
Datasheet Definitions:
Advanced
Preliminary
Datasheet
Product in Development
Shipping Non-Flight Prototypes
Shipping QML and Reduced HiRel
Aeroflex Plainview, Inc. reserves the right to make changes to any products and
services described herein at any time without notice. Consult Aeroflex or an authorized
sales representative to verify that the information in this data sheet is current before
using this product. Aeroflex does not assume any responsibility or liability arising out
of the application or use of any product or service described herein, except as expressly
agreed to in writing by Aeroflex; nor does the purchase, lease, or use of a product or
service from Aeroflex convey a license under any patent rights, copyrights, trademark
rights, or any other of the intellectual rights of Aeroflex or of third parties.
SCD8540 Rev A 4/1/15
8
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