775 Nanovolt Noise Measurement, for a Low Noise Voltage Reference

A new low voltage reference, the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT. Verifying this extremely low noise level constitutes a high order difficulty measurement, requiring a 1Hz to 10Hz noise floor below 160 nanovolts.

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775 Nanovolt Noise Measurement, for a Low Noise Voltage Reference

A new low voltage reference, the LTC6655, has only 0.3ppm (775nV) noise at 2.5VOUT. Verifying this extremely low noise level constitutes a high order difficulty measurement, requiring a 1Hz to 10Hz noise floor below 160 nanovolts.