DAC8574 Datasheet, PDF (12/40 Pages) Texas Instruments – QUAD, 16-BIT, LOW-POWER, VOLTAGE OUTPUT, I2C INTERFACE DIGITAL-TO-ANALOG CONVERTER

DAC8574
SLAS377A – JANUARY 2003 – REVISED JUNE 2003
TYPICAL CHARACTERISTICS (continued)
At T_A = +25°C, unless otherwise noted.
HALF-SCALE SETTLING TIME
(Large Signal)
3.0
V_DD = V_REF = 5 V
Output Loaded with
2.5
2 kΩ and 200 pF
to GND
2.0
1.5
1.0
0.5
0.0
Time (12 µs/div)
Figure 37.
HALF-SCALE SETTLING TIME
1.50
1.00
0.50
V_DD = V_REF = 2.7 V
Output Loaded with
2 kΩ and 200 pF to
GND
0.00
Time (12 µs/div)
Figure 39.
TOTAL HARMONIC DISTORTION
vs OUTPUT FREQUENCY
0
- 10 ^VDD ^{= V}REF ^{= 5 V}
- 20
F_S = 52 ksps, - 1 dB FSR Digital Input
Measurement Bandwidth = 20 kHz
- 30
- 40
- 50
THD
- 60
- 70
- 80
- 90
- 100
0
2nd Harmonic
3rd Harmonic
500 1k 1.5k 2k 2.5k 3k 3.5k 4k
f - Output Frequency - Hz
Figure 41.
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FULL-SCALE SETTLING TIME
(Large Signal)
3.5
V_DD = V_REF = 2.7 V
3.0
Output Loaded with
2 kΩ and 200 pF
2.5
to GND
2.0
1.5
1.0
0.5
0.0
98
Time (12 µs/div)
Figure 38.
SIGNAL-TO-NOISE RATIO
vs OUTPUT FREQUENCY
96
V_DD = 5 V
94
92
V_DD = 2.7 V
90
88
V_DD = V_REF
86 - 1 dB FSR Digital Input, F _S = 52 ksps
Measurement Bandwidth = 20 kHz
84
0 500 1k 1.5k 2k 2.5k 3k 3.5k 4k 4.5k
f - Output Frequency - Hz
Figure 40.
TOTAL HARMONIC DISTORTION
vs OUTPUT FREQUENCY
0
- 10 ^VDD ^{= V}REF ^{= 2.7 V}
- 20
F_S = 52 ksps, - 1 dB FSR Digital Input
Measurement Bandwidth = 20 kHz
- 30
- 40
- 50
THD
- 60
- 70
- 80
- 90
- 100
0
2nd Harmonic
3rd Harmonic
500 1k 1.5k 2k 2.5k 3k 3.5k 4k
f - Output Frequency - Hz
Figure 42.
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