Engineering 101

Precision op amp available with exposed center pad

Featuring 30nVP-P 0.1 to 10Hz noise and 50µV max input offset voltage, the LT6018, a precision op amp has been introduced by Linear Technology. Designed especially for applications sensitive to low frequency noise, the LT6018 has a very low 1/f corner frequency of less than 1Hz. The low input offset voltage holds over temperature and input common mode range: TCVOS is 0.5µV/°C maximum and CMRR is 124dB minimum.

Open loop gain is typically 142dB, enabling the device to achieve less than 1ppm nonlinearity.

The LT6018 has 15MHz gain-bandwidth product and employs slew enhancement circuitry to achieve up to 30V/µs slew rate. The part draws 7.2mA, which can be reduced during periods of non-use to 6.2µA using its shutdown pin.

The LT6018 is specified for operation from 8 to 33V supplies, for industrial (–40 to 85°C) and extended (–40 to 125°C) temperature ranges. It is available in SO-8E with exposed center pad for enhanced heat dissipation, and space-saving 4x3mm DFN packages.

The LT6018 is priced starting at $3.25 each in 1,000 piece quantities.

Summary of features: LT6018

  • ultralow voltage noise
    • 30nVP-P noise: 0.1 to 10Hz
    • 1.2nV/√Hz typical at 1kHz
  • maximum offset voltage: 50μV
  • maximum offset voltage Drift: 0.5μV/°C
  • CMRR: 124dB (minimum)
  • AVOL: 132dB (Minimum)
  • slew rate: 30V/µs
  • gain-bandwidth product: 15MHz
  • wide supply range: 8 to 33V
  • ultralow THD: –115dB at 1kHz
  • unity gain stable 36V ultralow noise precision op amp features 30nVP-P 0.1 to 10Hz noise
  • low power shutdown: 6.2μA
  • SO-8E and 4x3mm 12-lead DFN packages
  • 4.5kV HBM and 2kV CDM tolerant

lineartechopampimage

Downloads available:

Linear Technology 36V, Ultralow Noise, Precision Op Amp datasheet

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