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. 2μVP-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.


  • Reference output voltage: 4.096V ±0.05%
  • Accuracy over temperature: ±0.15%
  • Accuracy over radiation: ±0.25%
  • Output voltage noise: 6.2μVP-P typical (0.1Hz to 10Hz)
  • Supply current: 300μA (Typ)
  • VOS 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 (VCC = 36V): 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 5962-14208




  • Precision voltage sources for data acquisition system for space applications
  • Strain and pressure gauge for space applications
  • Radiation hardened PWM requiring precision outputs


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PCB Design Files ZIP 772 KB
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