Datasheet Linear Technology LT6015HS5#PBF

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Design Notes

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  Robust High Voltage Over-The-Top Op Amps Maintain High Input Impedance with Inputs Driven Apart or When Powered Down &mdash DN533
  PDF, 293 Kb, File published: Nov 5, 2014
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  Robust High Voltage Over-The-Top Op Amps Maintain High
  Input Impedance with Inputs Driven Apart or When
  Powered Down
  Design Note 533
  Glen Brisebois
  Introduction
  Linear Technology’s Over-The-Top® op amps have
  an input stage topology that allows them to operate
  closed loop well above the positive supply rail. The
  inputs remain high impedance when split apart in
  voltage and also when shut down or with complete
  loss of power supply. They are indispensable in robust
  systems, where reliability is required in the face of
  uncertain power sequencing. The LT6015, LT6016 and
  LT6017 extend the op amp operational input voltage
  capability to 76V, and improve precision with trimmed
  offset voltage of 350ВµV (max) over all common mode
  input voltages and over temperature.
  Input Topology—Theory of Operation
  An Over-The-Top input stage is shown in Figure 1.
  At low common modes, the PNPs Q1 and Q2 form a
  conventional precision differential pair with tail current
  provided by I1. The diff pair forwards its collector currents into the folded cascode pair Q7, Q8, which then …

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Manufacturer's Classification

• Signal Conditioning > Amplifiers > Operational Amplifiers (Op Amps) > Precision Amplifiers (Vos | Low Power Amplifiers (Is < 1mA/amp) | High Voltage Amplifiers (>12V) | Rail-to-Rail Amplifiers
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Amplifiers

Other Names:

LT6015HS5PBF, LT6015HS5 PBF