WM5621LED datasheet(12/14 Pages) WOLFSON

No de pièce	WM5621LED

Description	Low-power Quadruple 8-Bit DAC

PDF	14 Pages

Scroll/Zoom	100%

Fabricant	WOLFSON [Wolfson Microelectronics plc]

Site Internet	http://www.wolfsonmicro.com

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12 / 14 page

Wolfson Microelectronics

WM5621L

Functional Description (continued)

For a DAC, linearity is measured between ZERO input code

( all inputs 0 ) and full scale code ( all inputs 1 ) after offset

and full scale are adjusted out or accounted for in some

way. However, single supply operation does not allow for

adjustment when the offset is negative due to the break-

point in the transfer function. So the linearity in the unipolar

mode is measured between full scale code and the lowest

code which produces a positive output voltage. The code

is calculated from the maximum specification for the

negative offset.

Figure 5: Effect of negative offset (single supply)

WM5621LED Fiches technique(PDF) 12 Page - Wolfson Microelectronics plc