DATASHEET
ISL71091SEH40
4.096V Radiation Hardened Ultra Low Noise, Precision Voltage Reference
The
ISL71091SEH40
is an ultra low noise, high DC accuracy
precision voltage reference with a wide input voltage range
from 6.0V to 30V. It uses Intersil’s advanced bipolar technology
to achieve 6.2µV
P-P
0.1Hz to 10Hz noise with an initial voltage
accuracy of 0.05%.
The ISL71091SEH40 offers a 4.096V output voltage option
with 6ppm/°C temperature coefficient and also provides
excellent line and load regulation. The device is offered in an
8 Ld flatpack package.
The ISL71091SEH40 is ideal for high-end instrumentation,
data acquisition and processing applications requiring high DC
precision where low noise performance is critical.
FN8634
Rev 2.00
March 17, 2016
Features
• Reference output voltage . . . . . . . . . . . . . . . .4.096V ±0.05%
• Accuracy over temperature . . . . . . . . . . . . . . . . . . . . . ±0.15%
• Accuracy over radiation . . . . . . . . . . . . . . . . . . . . . . . . ±0.25%
• Output voltage noise . . . . . .6.2µV
P-P
typical (0.1Hz to 10Hz)
• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300µA (Typ)
• V
OS
temperature coefficient . . . . . . . . . . 6ppm/°C maximum
• Output current capability . . . . . . . . . . . . . . . . . . 10mA /-5mA
• Line regulation . . . . . . . . . . . . . . . . . . . . . . 5ppm/V maximum
• Load regulation (sourcing) . . . . . . . . . 20ppm/mA maximum
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
• Radiation environment
- High dose rate (50 to 300rad(Si)/s) . . . . . . . . . 100krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . 100krad(Si)*
- SEL/SEB free (V
CC
= 36V) . . . . . . . . . . . . 86MeV•cm
2
/mg
*Product capability established by initial characterization. The
“EH” version is acceptance tested on a wafer-by-wafer basis to
50krad(Si) at low dose rate.
• Electrically screened to SMD
5962-14208
Applications
• Precision voltage sources for data acquisition system for
space applications
• Strain and pressure gauge for space applications
• Radiation hardened PWM requiring precision outputs
Related Literature
•
AN1906,
“ISL71091SEHxxEV1Z User’s Guide”
•
AN1938,
“Single Event Effects (SEE) Testing of the
ISL71091SEHxx Precision Voltage References Family”
•
AN1939,
“Total Dose Testing of the ISL71091SEHxx
Precision Voltage Reference”
ISL71091SEH40
1
VIN
0.1µF
1nF
2
3
4
DNC
VIN
COMP
GND
DNC
DNC
VOUT
TRIM
8
7
VREF
6
V
OUT
(V)
5
1µF
C
REFIN
VDD
VEE
NOTE: Select C to minimize
settling time.
VDD
VEE
BIPOFF
DACOUT
D12
D0
GND
1.1k
4.101
4.100
4.099
4.098
4.097
4.096
4.095
4.094
4.093
4.092
4.091
-65
-45
-25
-5
15
35
55
75
95
115
135
UNIT 3
UNIT 5 UNIT 4
UNIT 1
UNIT 2
HS-565BRH
TEMPERATURE (°C)
FIGURE 1. ISL71091SEH40 TYPICAL APPLICATION DIAGRAM
FIGURE 2. V
OUT
vs TEMPERATURE
FN8634 Rev 2.00
March 17, 2016
Page 1 of 16
ISL71091SEH40
Ordering Information
ORDERING NUMBER
(Notes
1, 2)
5962R1420803VXC
5962R1420803V9A
ISL71091SEHF40/PROTO
ISL71091SEHF40SAMPLE
ISL71091SEH40EV1Z
NOTES:
1. These Intersil Pb-free Hermetic packaged products employ 100% Au plate - e4 termination finish, which is RoHS compliant and compatible with both
SnPb and Pb-free soldering operations.
2. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed in the
“Ordering Information” table must be used when ordering.
3. For alternate V
OUT
options, visit the
ISL71090SEH
and
ISL71091SEH
family pages.
PART
NUMBER
ISL71091SEHVF40
ISL71091SEHVX40
ISL71091SEHF40/PROTO
ISL71091SEHX40SAMPLE
Evaluation Board
V
OUT
OPTION
(Note
3)
(V)
4.096
4.096
4.096
4.096
GRADE
(%)
0.05
0.05
0.05
0.05
TEMPCO
(ppm/°C)
6
6
6
6
TEMP RANGE
PACKAGE
(°C)
(RoHS Compliant)
-55 to +125 8 Ld Flatpack
-55 to +125 Die
-55 to +125 8 Ld Flatpack
-55 to +125 Die
K8.A
PKG.
DWG. #
K8.A
TABLE 1. KEY DIFFERENCES BETWEEN FAMILY OF PARTS
PART
ISL71091SEH20
ISL71091SEH33
ISL71091SEH40
ISL71091SEH10
V
OUT
(V)
2.048
3.3
4.096
10
TEMPCO
(ppm/°C)
6
6
6
6
OUTPUT VOLTAGE NOISE
(µV
P-P
)
3.8
5.2
6.2
14.8
LOAD REGULATION
(ppm/mA)
40
25
20
15
FN8634 Rev 2.00
March 17, 2016
Page 2 of 16
ISL71091SEH40
Pin Configuration
ISL71091SEH40
(8 LD FLATPACK)
TOP VIEW
DNC
VIN
COMP
GND
1
2
3
4
8
7
6
5
DNC
DNC
VOUT
TRIM
NOTE: The ESD triangular mark is indicative of pin #1. It is part of the device marking and is placed
on the lid in the quadrant where pin #1 is located.
Pin Descriptions
PIN NUMBER
1, 7, 8
2
3
4
5
6
VDD
PIN NAME
DNC
VIN
COMP
GND
TRIM
VOUT
ESD CIRCUIT
3
1
2
1
2
2
DESCRIPTION
Do not connect. Internally terminated.
Input voltage connection.
Compensation and noise reduction capacitor.
Ground connection. Also connected to the lid.
Voltage reference trim input.
Voltage reference output.
VDD
VDD
CAPACITIVELY
TRIGGER CLAMP
PIN
NC
GND
GND
ESD CIRCUIT 1
ESD CIRCUIT 2
ESD CIRCUIT 3
FN8634 Rev 2.00
March 17, 2016
Page 3 of 16
ISL71091SEH40
Functional Block Diagram
VIN
BIAS
REGULATOR
DNC
DNC
DNC
1.2V
Gm
GND
VOUT
BAND
GAP
REFERENCE
3.7V
COMP
TRIM
1.2V
FIGURE 3. FUNCTIONAL BLOCK DIAGRAM
Typical Trim Application Diagram
ISL71091SEH40
1
DNC
VIN
0.1µF
1nF
2
3
4
VIN
COMP
GND
DNC
DNC
VOUT
TRIM
7
VREF
6
5
10kΩ
1MΩ
1µF
8
FIGURE 4. TYPICAL TRIM APPLICATION DIAGRAM
FN8634 Rev 2.00
March 17, 2016
Page 4 of 16
ISL71091SEH40
Absolute Maximum Ratings
Maximum Voltage
V
IN
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +40V
V
IN
to GND at an LET = 86MeV•cm
2
/mg . . . . . . . . . . . . . . -0.5V to +36V
V
OUT
to GND (10s). . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5V to V
OUT
+ 0.5V
Voltage on any Pin to Ground . . . . . . . . . . . . . . . . . . . -0.5V to +V
OUT
+ 0.5V
Voltage on DNC Pins. . . . . . . . . . . . . . . No connections permitted to these pins
ESD Ratings (MIL STD 883 Method)
Human Body Model (Tested per MIL-PRF-883 3015.7). . . . . . . . . . . 2kV
Machine Model (Tested per JESD22-A115-A) . . . . . . . . . . . . . . . . . . 200V
Charged Device Model (Tested per JESD22-C101D) . . . . . . . . . . . 750V
Thermal Information
Thermal Resistance (Typical)
JA
(°C/W)
JC
(°C/W)
8 Ld Flatpack Package (Notes
4, 5).
. . . . .
135
11
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Maximum Junction Temperature (T
JMAX
) . . . . . . . . . . . . . . . . . . . . .+150°C
Recommended Operating Conditions
Input Voltage Range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6.0V to +30V
Ambient Operating Temperature Range . . . . . . . . . . . . . -55°C to +125°C
CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product
reliability and result in failures not covered by warranty.
NOTES:
4.
JA
is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief
TB379
for details.
5. For
JC
, the “case temp” location is the center of the ceramic on the package underside.
Electrical Specifications for Flatpack
PARAMETER
V
OUT
V
OA
DESCRIPTION
Output Voltage
V
OUT
Accuracy at T
A
= +25°C
V
IN
= 8V, I
OUT
= 0mA, C
L
= 1µF and C
COMP
= 0.001µF unless otherwise specified. Boldface
limits apply after radiation at +25°C and across the operating temperature range, -55°C to +125°C without radiation, unless otherwise specified.
TEST CONDITIONS
MIN
(Note
6)
TYP
4.096
V
OUT
= 4.096V (Note
9)
-0.05
-0.15
-0.25
+0.05
+0.15
+0.25
6
V
OUT
= 4.096V
6.0
0.3
V
IN
= 6.0V to 30V, V
OUT
= 4.096V
Sourcing: 0mA
≤
I
OUT
≤
10mA
Sinking: -5mA
≤
I
OUT
≤
0mA
V
D
I
SC+
I
SC-
t
R
PSRR
e
N
V
P-P
e
N
V
RMS
e
N
V
OUT
/t
Dropout Voltage (Note
8)
Short-Circuit Current
Short-Circuit Current
Turn-On Settling Time
Ripple Rejection
Output Voltage Noise
Broadband Voltage Noise
Noise Density
Long Term Stability
I
OUT
= 10mA
T
A
= +25°C, V
OUT
tied to GND
T
A
= +25°C, V
OUT
tied to V
IN
90% of final value, C
L
= 1.0µF,
C
C
= 1000pF
f = 120Hz
0.1Hz
≤
f
≤10Hz,
V
OUT
= 4.096V
10Hz
≤
f
≤1kHz,
V
OUT
= 4.096V
f = 1kHz, V
OUT
= 4.096V
T
A
= +25°C, 1000 hours
0.3
11
25
1.1
55
-61
336
82
6.2
6.6
188
20
30.0
0.5
5.0
20
50
1.6
MAX
(Note
6)
UNIT
V
%
%
%
ppm/°C
V
mA
ppm/V
ppm/mA
ppm/mA
V
mA
mA
µs
dB
µV
P-P
µV
RMS
nV/√Hz
ppm
V
OUT
Accuracy at T
A
= -55°C to +125°C V
OUT
= 4.096V (Note
9)
V
OUT
Accuracy at T
A
= +25°C, Post
Radiation
TC V
OUT
V
IN
I
IN
V
OUT
/V
IN
V
OUT
/I
OUT
Output Voltage Temperature
Coefficient (Note
7)
Input Voltage Range
Supply Current
Line Regulation
Load Regulation
V
OUT
= 4.096V (Note
9)
FN8634 Rev 2.00
March 17, 2016
Page 5 of 16
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