27 April 2021

CISSOID expands its SiC Intelligent Power Modules platform for E-Mobility and Aerospace Markets

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Triple OPAMP with built-in Voltage Reference (225C)

The CHT-RUBY is a general-purpose triple operational amplifier combined with a bandgap voltage reference for applications with an operating temperature range of -55to 225°C. The three operational amplifiers can be configured in an instrumentation amplifier with external resistors, while the built-in voltage reference provides complete bridge excitation for sensor applications. The total precision (absolute plus temperature drift) of the voltage reference is better than 2%. 

Typical performances

  • Temperature range: -55°C to 225°C
  • Power supply: 6 to 20V
  • Configurable as an Instrumentation Amplifier through external resistors
  • Gain Bandwidth Product: 1.3MHz typ
  • Power consumption (per amplifiers): 600µA @225°C
  • Max Output current: 15mA @25°C
  • Voltage Reference: 
    • Current capability: 25mA Max
    • Initial accuracy: +/-2%
    • Stability Over Temperature: <500µV/°C



  • Well logging, Automotive, Aeronautics & Aerospace
  • Signal conditioning and voltage control applications

If you need support for your high temperature design, contact Cissoid.

Download CISSOID's Altium Library for IC symbols and package footprints. For installation, read the related Application Note.


Die Map

Supporting its customers in the manufacturing of high temperature and high reliability hybrid modules, CISSOID delivers most of its CHT products as bare die. Please, do not hesitate to contact CISSOID to request die map information including die dimension, die finish, location and description of the bonding pads.


Ordering information

Product name Ordering reference Package Marking
RUBY CHT-CEM981303-D-U Potential Good Die -