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ISL71090SEH75

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Radiation Hardened Ultra Low Noise, Precision Voltage Reference

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Overview

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%. 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.

ISL71090SEH75 Functional Diagram
ISL71090SEH75 Functional Diagram
  • 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
  • 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
    *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

Documentation

Design & Development

Software Downloads
Type Title Date
PCB Design Files
ISL71090SEH75EV1Z Design Files
ZIP 603 KB
1 item

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Models
Type Title Date
Model - SPICE
isl71090seh75-spice-macro-model
ZIP 51 KB
Model - SPICE
ISL71090SEH75 Unencrypted PSPICE Model
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2 items

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FAQs

  1. ISL71090SEH Trim Pin

    The part is factory trimmed and the trim pin can be left unconnected for most applications. The part adjust factory-calibrated output value can be adjusted using the trim pin as discussed in the data sheet in the section titled  “Output Voltage Adjustment”.

    Mar 20, 2024
  2. Is it possible to use the ISL71090SEH without a compensation capacitor?

    It is possible to use these voltage references without a compensation capacitor if the output capacitance is under 100pF for ISL71090SEH12. For ISL71090SEH25, ISL71090SEH50 and ISL71090SEH75 the output capacitance must be either under 100pF or between 50nF to 100nF. However, a compensation capacitor is highly recommended to mitigate SEE effects ...

    Jul 10, 2025