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HA-2640 and HA-2645 are monolithic operational amplifiers which are designed to deliver unprecedented dynamic specifications for a high voltage internally compensated device. These dielectrically isolated devices offer very low values for offset voltage and offset current coupled with large output voltage swing and common mode input voltage. For maximum reliability, these amplifiers offer unconditional output overload protection through current limiting and a chip temperature sensing circuit. This sensing device turns the amplifier off, when the chip reaches a certain temperature level. These amplifiers deliver ±35V common mode input voltage range, ±35V output voltage swing, and up to ±40V supply range for use in such designs as regulators, power supplies, and industrial control systems. 4MHz gain bandwidth and 5V/µs slew rate make these devices excellent components for high performance signal conditioning applications. Outstanding input and output voltage swings coupled with a low 5nA offset current make these amplifiers excitation designs.


  • Output Voltage Swing ±35V
  • Supply Voltage ±10V to ±40V
  • Offset Current 5nA
  • Bandwidth 4MHz
  • Slew Rate 5V/µs
  • Common Mode Input Voltage Range ±35V
  • Output Overload Protection


  • Industrial Control Systems
  • Power Supplies
  • High Voltage Regulators
  • Resolver Excitation
  • Signal Conditioning


Title language Type Format File Size Date
star HA-2640, HA-2645 Datasheet Datasheet PDF 569 KB
AN1993: Voltage Feedback versus Current Feedback Operational Amplifiers Application Note PDF 564 KB
AN1694: The Four Basic Building Blocks of an Op Amp Application Note PDF 357 KB
AN535: Design Considerations for a Data Acquisition System (DAS) Application Note PDF 843 KB
PA11003 - Packing Method Change for Intersil TO-xx Metal Can and Flat Pack Packaged Products Product Advisory PDF 499 KB
PA10098 - Alternate Marking Method for Intersil TO-Can Packaged Products Product Advisory PDF 67 KB
TB514: Operational Amplifier Basics Other PDF 519 KB