DAC8551-Q1 Datasheet, PDF (10/28 Pages) Texas Instruments – Automotive 16-Bit, Ultralow-Glitch, Voltage-Output DAC

DAC8551-Q1
SLASEB8A – FEBRUARY 2016 – REVISED MARCH 2016
Typical Characteristics (continued)
At T_A = 25°C, V_DD = 5 V unless otherwise noted.
V_DD = 5V
V_REF = 4.096V
From Code: 8010
To Code: 8000
Glitch: 0.08nV-s
Time (400ns/div)
Figure 20. Glitch Impulse: 5 V, 16-LSB Step, Falling Edge
V_DD = 5V
V_REF = 4.096V
From Code: 80FF
To Code: 8000
Glitch: Not Detected
Theoretical Worst Case
Time (400ns/div)
Figure 22. Glitch Impulse: 5 V, 256-LSB Step, Falling Edge
98 _{VREF = VDD = 5V}
96
-1dB FSR Digital Input
f_S = 1MSPS
94 ^{Measurement Bandwidth = 20kHz}
92
90
88
86
84
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.5
f_OUT (kHz)
Figure 24. Signal-to-Noise Ratio vs Output Frequency
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V_DD = 5V
V_REF = 4.096V
From Code: 8000
To Code: 80FF
Glitch: Not Detected
Theoretical Worst Case
Time (400ns/div)
Figure 21. Glitch Impulse: 5 V, 256-LSB Step, Rising Edge
-40
V_DD = 5V
-50
V_REF = 4.9V
-1dB FSR Digital Input
f_S = 1MSPS
-60 Measurement Bandwidth = 20kHz
-70
THD
-80
-90
2nd Harmonic
3rd Harmonic
-100
0
1
2
3
4
5
f_OUT (kHz)
Figure 23. Total Harmonic Distortion vs Output Frequency
-10
-30
-50
-70
-90
-110
-130
0
V_DD = 5V
V_REF = 4.096V
f_OUT = 1kHz
f = 1MSPS
CLK
5
10
15
20
Frequency (kHz)
Figure 25. Power Spectral Density
10
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