概览

简介

The ISL70591SEH, ISL73591SEH, ISL70592SEH, and ISL73592SEH are radiation hardened precision 100µA and 1mA current source ICs. The devices have 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 devices are immune to single event latch-up. The high output impedance of the devices make them insensitive to the voltage drops across long lines. They 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.

特性

  • 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

Comparison

应用

应用

  • Sensor excitation
  • Biasing network
  • Low voltage references
  • Ramp generators

文档

类型 文档标题 日期
数据手册 PDF 780 KB
手册 PDF 4.85 MB
报告 PDF 230 KB
其他
报告 PDF 347 KB
报告 PDF 716 KB
手册 - 开发工具 PDF 555 KB
白皮书 PDF 533 KB
应用文档 PDF 338 KB
9 items

设计和开发

软件与工具

软件下载

类型 文档标题 日期
PCB设计文档 ZIP 229 KB
1 item

开发板与套件

开发板与套件

模型