Overview

The ISL70592SEH 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

Applications

  • 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
ISL70592SEH & ISL73592SEH Neutron Test Report
PDF 225 KB
Manual - Development Tools
ISL70592SEHEVAL1Z User Guide
PDF 538 KB
Other
Standard Microcircuit Drawing 5962-18217 (ISL70591SEH, ISL73591SEH, ISL70592SEH, ISL73592SEH)
Report
ISL70592SEH & ISL73592SEH Total Dose Test Report
PDF 342 KB
Report
ISL7x591SEH, ISL7x592SEH SEE Test Report
PDF 716 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
ISL70592SEHEVAL1Z Design Files
ZIP 225 KB
1 item
ISL70592SEHEVAL1Z Evaluation Board

ISL70592SEHEVAL1Z

Evaluation
Learn More

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

The ISL70592SEHEVAL1Z evaluation board provides a quick and easy method to evaluate the ISL70592SEH radiation hardened 1mA precision constant current source designed...

Featured Documents:
ISL70592SEHEVAL1Z User Guide

ECAD Models

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

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    DLA SMD
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    ISL70592SEHF/PROTO
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    memory
    spa
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    Samples Available
    		 CFP Tray 1 Not Applicable Get Samples,
    ISL70592SEHVF
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    memory
    spa
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    		CFP Tray 25 5962R1821703VXC Not Applicable
    ISL70592SEHVX
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    memory
    view_in_ar
    		DIE 100 5962R1821703V9A
    ISL70592SEHX/SAMPLE
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    view_in_ar
    		Die Waffle Pack 1 Not Applicable
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