DAC8564IDPW datasheet(43/51 Pages) TI1

43 / 51 page

DAC8564

www.ti.com

SBAS403D

– JUNE 2007 – REVISED MAY 2011

Signal-to-Noise plus Distortion (SINAD)

DAC Output Noise

SINAD includes all the harmonic and outstanding

DAC output noise is defined as any voltage deviation

spurious components in the definition of output noise

of DAC output from the desired value (within a

power in addition to quantizing any internal random

particular frequency band). It is measured with a DAC

noise power. SINAD is expressed in dB at a specified

channel kept at midscale while filtering the output

input frequency and sampling rate, fS.

voltage within a band of 0.1Hz to 10Hz and

measuring its amplitude peaks. It is expressed in

DAC Output Noise Density

terms of peak-to-peak voltage (Vpp).

Output

noise

density

defined

Full-Scale Range (FSR)

internally-generated random noise. Random noise is

characterized as a spectral density (nV/

√Hz). It is

Full-scale range (FSR) is the difference between the

measured by loading the DAC to midscale and

maximum and minimum analog output values that the

measuring noise at the output.

DAC is specified to provide; typically, the maximum

and minimum values are also specified. For an n-bit

DAC, these values are usually given as the values

matching with code 0 and 2n.

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