Datasheet

~3 Vm
PP
V - 1 V/div
OUT
m
t - Time - 2 s/div
0
100
200
300
400
500
600
700
800
Zero Scale
Mid Scale
Full Scale
20 100 1000 10000 100000
f - Frequency - Hz
Ö
Voltage Noise - nV/ Hz
AV = 5.5 V,
DAC Output Unloaded,
Internal Reference = 2.5 V
DD
0
50
100
150
200
250
300
100 1000 10000 100000
f - Frequency - Hz
Ö
Voltage Noise - nV/ Hz
Zero Scale
Mid Scale
Full Scale
AV = 5.5 V,
DAC Output Unloaded,
External Reference = 5 V
DD
20
DAC7678
www.ti.com SBAS493B –FEBRUARY 2010–REVISED JULY 2012
TYPICAL CHARACTERISTICS: DAC at AV
DD
= 5.5 V (continued)
At T
A
= 25°C, external reference used, DAC output not loaded, and all DAC codes in straight binary data format, unless
otherwise noted
DAC OUTPUT NOISE DENSITY vs FREQUENCY DAC OUTPUT NOISE DENSITY vs FREQUENCY
INTERNAL REFERENCE ENABLED INTERNAL REFERENCE DISABLED
Figure 47. Figure 48.
DAC OUTPUT NOISE
0.1 Hz to 10 Hz
Figure 49.
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