RHD5912 (12/13)

Datasheet
Standard Products
RadHard-by-Design
RHD5912 Quad Comparator
Open Drain Outputs
www.aeroflex.com/RHDseries
December 24, 2013
FEATURES

Single power supply operation at 3.3V or 5.0V

Radiation performance
- Total dose:
- ELDRS Immune
- SEL Immune
- Neutron Displacement Damage
> 1 Mrad(Si); Dose rate = 50 - 300 rads(Si)/s
> 100 MeV-cm2/mg
> 1014 neutrons/cm2

Short Circuit Tolerant

Full military temperature range

Designed for aerospace and high reliability space applications

Packaging – Hermetic ceramic SOIC
- 16-pin, .411"L x .293"W x .105"Ht
- Weight - 0.8 grams max

Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.
GENERAL DESCRIPTION
Aeroflex’s RHD5912 is a radiation hardened, single supply, quad comparator with open drain outputs in a
16-pin SOIC package. The RHD5912 design uses specific circuit topology and layout methods to mitigate
total ionizing dose effects and single event latchup. These characteristics make the RHD5912 especially
suited for the harsh environment encountered in Deep Space missions. It is guaranteed operational from
-55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RHD5912 is ideal
for demanding military and space applications.
ORGANIZATION AND APPLICATION
The RHD5912 quad comparator is intended for operation with dynamic signals on either or both inputs.
Comparison is ’continuous’, that is, the circuit functions as high gain open loop amplifiers with a digital
output. For slow input signals with small input differences the comparators can be expected to respond to
small noise signals at the inputs. Although there is internal hysteresis, feedback hysteresis is the
responsibility of the user to avoid ’chattering’ on system noise.
The comparator will accept signals anywhere in the included power supply range. The circuit delay is
specified for a half-volt single ended or differential input step of either polarity ending in an input polarity
reversal of 10mV. See Switching Diagrams.
CMOS device drive has a negative temperature coefficient and the devices are therefore inherently tolerant
to momentary shorts, although on chip thermal shutdown is not provided. All inputs and outputs are diode
protected
The devices will not latch with SEU events above 100 Mev-cm2/mg. Total dose degradation is minimal to
above 1 Mrad(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.
SCD5912 Rev C
OUT_B
1
16
OUT_C
OUT_A
2
15
OUT_D
VCC
3
14
GND
-IN_A
4
13
+IN_D
+IN_A
5
12
-IN_D
-IN_B
6
11
+IN_C
+IN_B
7
10
-IN_C
EN_AB
8
9
5912
EN_CD
16-Pin SOIC
BLOCK DIAGRAM
PACKAGE PIN-OUT
Notes:
1. Package and Lid are electrically isolated from signal pads.
2. It is recommended that the Lid be grounded to prevent any ESD or static buildup.
3. EN_AB enables Comparators A & B. EN_CD enables Comparators C & D.
Pin
Signal Name
Definition
1
OUT_B
Output of Comparator B.
2
OUT_A
Output of Comparator A.
3
VCC
DC Supply Voltage.
4
-IN_A
Inverting input of Comparator A.
5
+IN_A
Non-Inverting input of Comparator A.
6
-IN_B
Inverting input of Comparator B.
7
+IN_B
Non-Inverting input of Comparator B.
8
EN_AB
A Logic Low will disable Comparator A & B
so that the outputs are high impedance.
9
EN_CD
A Logic Low will disable Comparator C & D
so that the outputs are high impedance.
10
-IN_C
Inverting input of Comparator C.
11
+IN_C
Non-Inverting input of Comparator C.
12
-IN_D
Inverting input of Comparator D.
13
+IN_D
Non-Inverting input of Comparator D.
14
GND
DC Supply Return.
15
OUT_D
Output of Comparator D.
16
OUT_C
Output of Comparator C.
PIN-OUT DESCRIPTION
SCD5912 Rev C 12/24/13
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Aeroflex Plainview
ABSOLUTE MAXIMUM RATINGS
Parameter
Range
Units
Case Operating Temperature Range
-55 to +125
°C
Storage Temperature Range
-65 to +150
°C
Junction Temperature
+150
°C
Supply Voltage (+VCC )
+6.0
V
VCC +0.4
GND -0.4
V
V
300
°C
7
°C/W
2,000 - 3,999
V
250
mW
Input Voltage
Lead Temperature (soldering, 10 seconds)
Thermal Resistance, Junction-to-Case JC
ESD Rating (MIL-STD-883, Method 3015, Class 2)
Power @ 25°C
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
Symbol
Parameter
+VCC
Power Supply Voltage
VCM
Input Common Mode Range
Typical
Units
3.3 to 5.0
V
(VCC - 1.5) to GND
V
ELECTRICAL PERFORMANCE CHARACTERISTICS
(TC = -55°C TO +125°C, +VCC = +5.0V -- UNLESS OTHERWISE SPECIFIED)
Parameter
Symbol
Quiescent Supply Current 1/
ICCQ
Conditions
Min
Max
Units
3
mA
300
nA
-20
20
mV
EN = 1, NO LOAD
EN = 0 2/
Input Offset Voltage 1/
VOS
Input Offset Current 1/, 3/
IOS
TC = +25°C, +125°C
-10
10
nA
IB
TC = +25°C, +125°C
-10
10
nA
Input Bias Current 1/, 3/
Common Mode Rejection Ratio 1/
CMRR
50
dB
Power Supply Rejection Ratio 1/
PSRR
70
dB
VOL
Output Voltage Low 1/
Gain 1/
ILKOUT
Short Circuit Output Current
IO(SINK)
2/
Input Voltage - Enable (EN_AB,
EN_CD)
Notes:
0.25
V
IOUT = 10mA
0.44
V
IOUT = 20mA
1.00
V
A
Output Leakage Current 1/, 3/
Input Current - Enable
(EN_AB, EN_CD) 3/
IOUT = 5mA
V/mV
5
VOUT = VCC, TC = +25°C, +125°C
-35
100
nA
-60
mA
VHI
High (Enabled)
VLO
Low (Disabled)
1.5
V
IEN
TC = +25°C, +125°C
10
nA
V
3.5
1/ Specification derated to reflect Total Dose exposure to 1 Mrad(Si) @ 25°C.
2/ Not tested. Shall be guaranteed by design, characterization or correlation to other test parameters.
3/ Subgroup 3 for these parameters is guaranteed, but not production tested.
SCD5912 Rev C 12/24/13
3
Aeroflex Plainview
SWITCHING CHARACTERISTICS
(TC = -55°C TO +125°C, +VCC = +5.0V -- UNLESS OTHERWISE SPECIFIED)
Symbol
Parameter
Output Delay (Switching)
TOUT
Conditions
Min
1/
Max
Units
300
ns
Output Delay (Enabled)
tONEN
500
ns
Output Delay (Disabled)
tOFFEN
100
ns
Note:
1/ The circuit delay is specified for a half-volt single ended or differential input step, of either polarity, ending in an input polarity reversal of 10mV.
-IN
INPUT
+IN
VOH
OUTPUT
VOL
TOUT
INPUT TO OUTPUT DELAY
VCC
ENABLES
(EN_AB or EN_CD)
50%
GND
tONEN
VOUT
(VOUT_A&B or VOUT_C&D)
VCC
HI Z
HI Z
GND
tOFFEN
ENABLE TO OUTPUT DELAY
RHD5912 SWITCHING DIAGRAMS
SCD5912 Rev C 12/24/13
4
Aeroflex Plainview
VCC
Threshold Voltage
R2
V TH = Vcc --------------------R1 + R2
R1
VCC
R4
Open Drain
Pull-up
VO
VTH
Hysteresis Calculation
R2
HYS = V O --------------------R2 + R3
R3
R2
APPLICATION NOTE 1: HYSTERESIS
Note: Package and lid are electrically
isolated from signal pads.
PACKAGE OUTLINE
SCD5912 Rev C 12/24/13
5
Aeroflex Plainview
ORDERING INFORMATION
Model
DLA SMD #
Screening
RHD5912-7
-
Commercial Flow, +25°C testing only
RHD5912-S
-
Military Temperature, -55°C to +125°C
Screened in accordance with the individual Test Methods
of MIL-STD-883 for Space Applications
RHD5912-201-1S
5962-1024203KXC
RHD5912-201-2S
5962-1024203KXA
RHD5912-901-1S
5962H1024203KXC
RHD5912-901-2S
5962H1024203KXA
In accordance with DLA SMD
Package
16-pin
SOIC Package
In accordance with DLA Certified RHA Program Plan to
RHA Level "H", 1Mrad(Si)
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.)
PLAINVIEW, NEW YORK
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Fax: 516-694-6715
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CENTRAL
Tel: 719-594-8017
Fax: 719-594-8468
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.
SCD5912 Rev C 12/24/13
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