DATASHEET
7.5V Radiation Hardened Ultra Low Noise, Precision
Voltage Reference
ISL71090SEH75
Features
The ISL71090SEH75 is an ultra low noise, high DC accuracy
precision voltage reference with a wide input voltage range
from 9.2V to 30V. The ISL71090SEH75 uses the Intersil
advanced bipolar technology to achieve 1.0µVP-P noise at
0.1Hz with an accuracy over temperature of 0.15%.
• Reference output voltage . . . . . . . . . . . . . . . . . . 7.5V ±0.05%
• Accuracy over temperature . . . . . . . . . . . . . . . . . . . . . ±0.15%
• Output voltage noise . . . . . . . . .1.0µVP-P typ (0.1Hz to 10Hz)
• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 930µA (typ)
• Tempco (box method) . . . . . . . . . . . . . . . . . . . 10ppm/°C max
• Output current capability . . . . . . . . . . . . . . . . . . . . . . . . 20mA
• Line regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8ppm/V
• Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . .10ppm/mA
• Operating temperature range. . . . . . . . . . . .-55°C to +125°C
The ISL71090SEH75 offers a 7.5V output voltage with
10ppm/°C temperature coefficient and also provides
excellent line and load regulation. The device is offered in an
8 Ld flatpack package.
The ISL71090SEH75 is ideal for high-end instrumentation,
data acquisition and applications requiring high DC precision
where low noise performance is critical.
• Radiation environment
- High dose rate (50-300rad(Si)/s) . . . . . . . . . . . 100krad(Si)
- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . .100krad(Si)*
- SET/SEL/SEB . . . . . . . . . . . . . . . . . . . . . . 86MeV•cm2/mg
Applications
• RH voltage regulators precision outputs
• Precision voltage sources for data acquisition system for
space applications
*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
• Strain and pressure gauge for space applications
• Electrically screened to SMD 5962-13211
Related Literature
• AN1847, “ISL71090SEH12EV1Z, ISL71090SEH25EV1Z,
ISL71090SEH50EV1Z, ISL71090SEH75EV1Z User Guide”
• AN1848, “Single Event Effects (SEE) Testing of the
ISL71090SEH Precision Voltage Reference”
• AN1849, “Total Dose Testing of the ISL71090SEH Precision
Voltage Reference”
ISL71090SEH75
1
2
8
7
DNC
VIN
DNC
DNC
7.510
VIN
VREF
7.5V + 0.1%
7.508
0.1µF
3
4
6
5
COMP
GND
VOUT
TRIM
7.506
1nF
1µF
7.504
UNIT 2
7.502
7.500
7.498
7.496
7.494
7.492
7.490
UNIT 5
UNIT 3
UNIT 1
C
UNIT 4
REFIN
DACOUT
D12
VDD
VEE
VDD
VEE
1.1k
D0
7.5V - 0.1%
GND
BIPOFF
-80 -60 -40 -20
0
20
40
60
80 100 120 140
NOTE: Select C to minimize
settling time.
HS-565BRH
TEMPERATURE (°C)
FIGURE 1. ISL71090SEH75 TYPICAL APPLICATION DIAGRAM
FIGURE 2. VOUT vs TEMPERATURE
March 18, 2016
FN8591.3
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2013, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
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