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ISL70591SEH

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Radiation Hardened 100µA and 1mA Precision Current Source

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ISL70591SEH, ISL70592SEH, ISL73591SEH, ISL73592SEH Datasheet

Overview

The ISL70591SEH is a radiation hardened precision 100µA and 1mA current source IC. The device has excellent accuracy of ±1% over a wide operating voltage range of 3V to 40V and over a temperature range of -55 °C to +125 °C. Fabricated with the Renesas proprietary PR40 Silicon On Insulator (SOI) process, the device is immune to single event latch-up. The high output impedance of the device makes it insensitive to voltage drops across long lines. It can withstand a forward operating voltage of 40V and a reverse voltage of -0.5V. The ISL7x591SEH and ISL7x592SEH are two-terminal floating current sources allowing them to be used in high-side, low-side, and dual-side load applications such as sensor excitation, biasing networks, low voltage references, floating voltage references, and ramp generators. The current sources were primarily designed for thermistor and other sensor excitation applications widely used in space crafts. The ISL7x591SEH and ISL7x592SEH are available in a 4 Ld ceramic flatpack and die forms. The temperature range is -55 °C to +125 °C.

  • Electrically screened to DLA SMD 5962-18217
  • Wide operating voltage range: 3V to 40V
  • High initial accuracy (+V = 20V at +25 °C): ISL7x591SEH: ±0.34%, ISL7x592SEH: ±0.30%
  • High output impedance: ISL7x591SEH: 189MΩ (typical), ISL7x592SEH: 14MΩ (typical)
  • Completely floating: No ground connection
  • Radiation acceptance testing - ISL70591SEH and ISL70592SEH
    • High dose rate (50-300rad(Si)/s): 100krad(Si)
    • Low dose rate (0.01rad(Si)/s): 75krad(Si)
  • Radiation acceptance testing - ISL73591SEH and ISL73592SEH: Low dose rate (0.01rad(Si)/s): 75krad(Si)
  • SEE hardness
    • No SEB/SEL LETTH, +V = 35V: 86MeV•cm2/mg
    • SET duration (time recovery) ≤ 125µs
  • Sensor excitation
  • Biasing network
  • Low voltage references
  • Ramp generators

Documentation

Featured Documentation
Type Title Date
Datasheet
ISL70591SEH, ISL70592SEH, ISL73591SEH, ISL73592SEH Datasheet
PDF 780 KB
Brochure
Intersil Space Products Brochure
PDF 5.02 MB
Report
ISL70591SEH & ISL73591SEH Neutron Test Report
PDF 230 KB
Other
Standard Microcircuit Drawing 5962-18217 (ISL70591SEH, ISL73591SEH, ISL70592SEH, ISL73592SEH)
Report
ISL70591SEH & ISL73591SEH Total Dose Test Report
PDF 347 KB
Report
ISL7x591SEH, ISL7x592SEH SEE Test Report
PDF 716 KB
Manual - Development Tools
ISL70591SEHEVAL1Z User Guide
PDF 555 KB
White Paper
Wafer by Wafer Low Dose Rate Acceptance White Paper
PDF 533 KB
Application Note
AN9867: End of Life Derating: A Necessity or Overkill
PDF 338 KB
9 items

Design & Development

Software Downloads
Type Title Date
PCB Design Files
ISL70591SEHEVAL1Z Design Files
ZIP 229 KB
1 item
ISL70591SEHEVAL1Z Evaluation Board

ISL70591SEHEVAL1Z

Evaluation
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Radiation Hardened 100µA and 1mA Precision Constant Current Sources Evaluation Board

The ISL70591SEHEVAL1Z evaluation board provides a quick and easy method for evaluating the ISL70591SEH radiation hardened 100µA precision constant current source...

Featured Documents:
ISL70591SEHEVAL1Z User Guide

ECAD Models

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