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0.00
0.50
1.00
1.50
t − Time − 12 s/div
V
OUT
− Output Voltage − V
V
DD
= V
REF
= 2.7 V
Output Loaded With
2 kΩ and 200 pF to
GND
3.5
3
3.5
2.5
2
1.5
1
1.5
0.5
0
V
DD
= V
REF
= 2.7 V
Output Loaded With
2 kΩ and 200 pF to
GND
− Output Voltage − V
V
O
t − Time − 12 s/div
Large Signal
98
96
94
92
90
88
86
84
0 500 1 k 1.5 k 2 k 2.5 k 3 k 3.5 k 4 k 4.5 k
Output Frequency − Hz
SNR − Signal-to-Noise Ratio − dB
V
DD
= V
REF
−1 dB FSR Digital Input, F
S
= 52 K
sps
Measurement Bandwidth = 20 kHz
V
DD
= 5 V
V
DD
= 2.7 V
0 500 1 k 1.5 k 2 k 2.5 k 3 k 3.5 k 4 k
Output Frequency − Hz
THD − Total Harmonic Distortion − dB
V
DD
= V
REF
= 5 V
F
S
= 52 K
sps
−1 dB FSR Digital Input
Measurement Bandwidth = 20 kHz
THD
3rd Harmonic
2nd Harmonic
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
− Output Voltage − 5 mV/div
V
O
t − Time − 2 s/div
Small-Signal Settling
Trigger Signal
0
−10
−20
−30
−40
−50
−60
−70
−80
−90
−100
0 500 1 k 1.5 k 2 k 2.5 k 3 k 3.5 k 4 k
Output Frequency − Hz
THD − Total Harmonic Distortion − dB
V
DD
= V
REF
= 2.7 V
F
S
= 52 K
sps,
−1 dB FSR Digital Input
Measurement Bandwidth = 20 kHz
THD
3rd Harmonic
2nd Harmonic
DAC8544
SLAS420A – MAY 2004 – REVISED JUNE 2005
TYPICAL CHARACTERISTICS (continued)
This condition applies to all typical characteristics: V
REF+
= V
DD
, V
REF–
= GND, T
A
= 25°C (unless otherwise noted)
FULL-SCALE SETTLING TIME HALF-SCALE SETTLING TIME
Figure 23. Figure 24.
SIGNAL-TO-NOISE TOTAL HARMONIC DISTORTION
vs vs
OUTPUT FREQUENCY OUTPUT FREQUENCY
Figure 25. Figure 26.
TOTAL HARMONIC DISTORTION FULL-SCALE SETTLING TIME
vs (SMALL-SIGNAL POSITIVE-GOING STEP)
OUTPUT FREQUENCY
Figure 27. Figure 28.
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