775 Nano-Volt Noise Measurement for a Low Noise Voltage Reference

Reference Design using part LTC6655 by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Data Conversion
  • Product Type
    Voltage Reference

For End Products

  • Battery Management
  • Data Acquisition System
  • Medical Equipments
  • Portable Instrumentation
  • Weight Scale

Description

  • Detailed noise test circuitry. Thermally lagged Q1-Q2 low noise JFET pair is DC stabilized by A1-Q3, A2 delivers A = 10,000 preamplifier output. A3-A4 form 0.1Hz to 10Hz, A = 100, bandpass filter, total gain referred to pre-amplifier input is 106. Peak-to-peak noise detector, reset by monitoring oscilloscope sweep gate, supplies DVM output

Key Features

  • Reference Voltage
    2.5 V

Featured Parts (65)

Featured Parts
Part Number Manufacturer Type Description
LT1012CN8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin PDIP N Tube Buy
LT1012IS8#TRPBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin SOIC N T/R Buy
LT1012CN8 Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin PDIP N Buy
LT1012IS8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin SOIC N Tube Buy
LT1012S8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin SOIC N Tube Buy
LT1097CN8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Power Amplifier ±20V 8-Pin PDIP N Tube Buy
LT1012DN8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin PDIP N Tube Buy
LT1058ISW#TRPBF Analog Devices Operational Amplifiers - Op Amps Op Amp Quad High Speed Amplifier ±20V 16-Pin SOIC W T/R Buy
LT1012IS8 Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin SOIC N Buy
LT1058ISW#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Quad High Speed Amplifier ±20V 16-Pin SOIC W Tube Buy
LT1012IN8#PBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Noise Amplifier ±20V 8-Pin PDIP N Tube Buy
LT1097S8#TRPBF Analog Devices Operational Amplifiers - Op Amps Op Amp Single Low Power Amplifier ±20V 8-Pin SOIC N T/R Buy
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