1

DATASHEET

Radiation Hardened Ultra Low Noise, Precision Voltage

Reference

ISL71090SEH50

The ISL71090SEH50 is an ultra low noise, high DC accuracy

precision voltage reference with a wide input voltage range

from 7V to 30V. The ISL71090SEH50 uses the Intersil

0.1Hz with an accuracy over-temperature of 0.15%.

The ISL71090SEH50 offers a 5.0V 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 ISL71090SEH50 is ideal for high-end instrumentation,

data acquisition and applications requiring high DC precision

where low noise performance is critical.

Applications

• RH voltage regulators precision outputs

• Precision voltage sources for data acquisition system for

space applications

• Strain and pressure gauge for space applications

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”

Features

• Reference output voltage . . . . . . . . . . . . . . . . . . 5.0V ±0.05%

• Accuracy over temperature . . . . . . . . . . . . . . . . . . . . .±0.15%

• Supply current . . . . . . . . . . . . . . . . . . . . . . . . . . 930µA (typical)

• Tempco (box method) . . . . . . . . . . . . . .10ppm/°C maximum

• Output current capability . . . . . . . . . . . . . . . . . . . . . . . . 20mA

• Line regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8ppm/V

• Load regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . .10ppm/mA

• Operating temperature range. . . . . . . . . . . .-55°C to +125°C

• Radiation environment

- High dose rate (50-300rad(Si)/s) . . . . . . . . . . . 100krad(Si)

- Low dose rate (0.01rad(Si)/s) . . . . . . . . . . . . . 100krad(Si)*

*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 5962-13211

FIGURE 1. ISL71090SEH50 TYPICAL APPLICATION DIAGRAM

0.1µF

VEE

VDD

REFIN

VDD

BIPOFF

VEE

DACOUT

GND

VIN

VREF

1µF

D0

HS-565BRH

1

2

3

4

6

8

7

5

ISL71090SEH50

D12

1.1k

C

NOTE: SELECT C TO MINIMIZE

SETTLING TIME.

DNC

VIN

COMP

GND

DNC

DNC

VOUT

TRIM

1nF

4.998

5.000

5.002

5.004

5.006

5.008

5.010

5.012

-55

-35

-15

5

25

45

65

85

105

125

5.005V +0.1%

5.005V -0.1%

UNIT2

UNIT1

UNIT4

UNIT5

UNIT3

TEMPERATURE (°C)

March 15, 2016

FN8588.3

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

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.