“Green” pathways for test, measurement and instrumentation

January 23, 2013 // By Todd Nelson and Clarence Mayott
Long ago, precision electrical measurements were performed in pristine laboratory environments where ample electricity was available and time was allotted to assure extreme accuracy.

Today, the instrument is expected to be carried to the field, running on battery power and achieving even greater accuracy instantly. Analogue circuitry does not benefit from the scaling effects of smaller geometries in the same manner as digital circuitry. Noise, the enemy of precision measurements, actually increases if less power is consumed. And the signal-to-noise ratio (SNR) understandably gets worse with new low voltage processes as the signal amplitude is decreased.

Then how does the analog signal chain “go green” while increasing performance?

Read the full article on page 29 of our January digital edition.