DB15

DB0

SCLK

SYNC

1

2

13

14

15

16

OUTPUT

VOLTAGE

DIGITAL INPUT CODE

0

0

1024

ZE

FSE

GE = FSE - ZE

FSE = GE + ZE

1024

DAC104S085

SNAS362E – MAY 2006 – REVISED OCTOBER 2012

www.ti.com

POWER EFFICIENCY is the ratio of the output current to the total supply current. The output current comes from

the power supply. The difference between the supply and output currents is the power consumed by the

device without a load.

SETTLING TIME is the time for the output to settle to within 1/2 LSB of the final value after the input code is

updated.

TOTAL HARMONIC DISTORTION (THD) is the measure of the harmonics present at the output of the DACs

WAKE-UP TIME is the time for the output to exit power-down mode. This is the time from the falling edge of the

16th SCLK pulse to when the output voltage deviates from the power-down voltage of 0V.

ZERO CODE ERROR is the output error, or voltage, present at the DAC output after a code of 000h has been

entered.

Transfer Characteristic

Figure 1. Input / Output Transfer Characteristic

Timing Diagrams

Figure 2. Serial Timing Diagram

8

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