Analog Devices Inc. LT6658 Precision Voltage References

Analog Devices Inc. LT6658 Precision Voltage References are dual-output references that leverage the performance of a low-drift, low-noise reference, and linear regulator. The LT6658 Voltage References include two high-current output buffers. Designers can configure each output for any voltage between 2.5V and 6V. The outputs track each other over-temperature and load. Typical load regulation is 0.1ppm/mA with up to 150mA of load current.

Both outputs provide 0.05% initial accuracy, 10ppm/°C temperature drift, and 1.5ppm noise over a 0.1Hz to 10Hz frequency. The outputs deliver excellent supply rejection and are stable with 1μF to 50μF capacitors over a wide operating range. Analog Devices Inc. LT6658 is ideal for driving the reference input for high-resolution ADCs or DACs using one output while supplying power to other devices using the second output.


  • Dual output tracking reference
    • 2.5V to 6V configurable output
    • 150mA Source/20mA sink for output 1
    • 50mA Source/20mA sink for output 2
  • Low Drift
    • A-Grade: 10ppm/°C max
    • B-Grade: 20ppm/°C max
  • High Accuracy
    • A-Grade: ±0.05% max
    • B-Grade: ±0.1% max
  • 1.5ppmP-P (0.1Hz to 10Hz) noise rating
  • Up to 36V operating voltage rating
  • 0.1ppm/mA load regulation
  • 96dB at 10kHz AC PSRR
  • Kelvin sense connection on outputs
  • Thermal shutdown
  • Separate supply pins for each output
  • 1.2V, 1.8V, 2.5V, 3V, 3.3V, and 5V adjustable output voltage options
  • Available in exposed pad package MSE16


  • Microcontrollers with ADC/DAC
  • Data acquisition systems
  • Automotive control and monitoring
  • Precision low noise regulators
  • Instrumentation and process control

Block Diagram

Block Diagram - Analog Devices Inc. LT6658 Precision Voltage References
Publicado: 2017-04-28 | Actualizado: 2022-03-11