Features and Benefits

  • Rail-to-Rail Input and Output
  • 100% Tested Low Voltage Noise:
    • 3.9nV/√Hz Typ at 1kHz
    • 5.5nV/√Hz Max at 1kHz
  • Single Supply Operation from 2.5V to 36V
  • Offset Voltage: 100µV Max
  • Low Input Bias Current: 20nA Max
  • High AVOL: 3V/µV Min, RL = 10k
  • High CMRR: 100dB Min
  • High PSRR: 106dB Min
  • Gain Bandwidth Product: 20MHz
  • Operating Temperature Range: –40°C to 85°C
  • Matching Specifications
  • No Phase Inversion
  • 8-Lead SO and 14-Lead SO Packages

Product Details

The LT1678/LT1679 are dual/quad rail-to-rail op amps offering both low noise and precision: 3.9nV/√Hz wideband noise, 1/f corner frequency of 4Hz and 90nV peak-to-peak 0.1Hz to 10Hz noise are combined with outstanding precision: 100µV maximum offset voltage, greater than 100dB common mode and power supply rejection and 20MHz gain bandwidth product. The LT1678/LT1679 bring precision as well as low noise to single supply applications as low as 3V. The input range exceeds the power supply by 100mV with no phase inversion while the output can swing to within 170mV of either rail.

The LT1678/LT1679 are offered in the SO-8 and SO-14 packages. A full set of matching specifications are also provided, facilitating their use in matching dependent applications such as a two op amp instrumentation amplifier design. The LT1678/LT1679 are specified for supply voltages of ±15V, single 5V as well as single 3V. For a single amplifier with similiar performance, see the LT1677 data sheet.


  • Strain Gauge Amplifiers
  • Portable Microphones
  • Battery-Powered Rail-to-Rail Instrumentation
  • Low Noise Signal Processing
  • Microvolt Accuracy Threshold Detection
  • Infrared Detectors

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Tools & Simulations


LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.


Models for the following parts are available in LTspice:


Reference Materials

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

Sample & Buy

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