Datasheet

110
111
112
113
114
115
116
117
0 100 200 300 400 500
SourceResistance- W
THD-TotalHarmonicDistortion-dB
0pF
100pF
680pF
+VA =5V,
+VBD=2.7V,
V =5V,
f =500KSPS,
T =30°C
ref
s
A
SINAD@-10dB
SINAD@-0.5dB
85
87
89
91
93
95
97
99
1 10 100
f -Inputfrequency-kHz
i
SINAD-Signal-to-Noise+NoiseDistortion-dB
+VA =5V
+VBD=2.7V,
V =5V,
f =500KSPS,
T =30°C
ref
s
A
0
216040
46104
0
0
50000
100000
150000
200000
250000
32757 32758 32759 32760
Codes
Hits
+VA =5V,
+VBD=2.7V,
V =5V,
f =500KSPS,
T =30°C
ref
s
A
3.3
3.35
3.4
3.45
3.5
3.55
3.6
3.65
3.7
3.75
3.8
4.5 4.75 5 5.25 5.5
I -SupplyCurrent-mA
avdd
+VA -SupplyVoltage-V
+VBD=2.7V,
V =4.096V,
f =500KSPS,
T =30°C
ref
s
A
3
3.2
3.4
3.6
3.8
4
4.2
-40 -25 -10 5 20 35 50 65 80
T -Free-AirTemperature-°C
A
I -SupplyCurrent-mA
avdd
+VA =5V,
+VBD=2.7V,
V =5V,
f =500KSPS
ref
s
0
0.5
1
1.5
2
2.5
3
3.5
4
0 50 100 150 200 250 300 350 400 450 500
f -SamplingFrequency-KSPS
s
I -SupplyCurrent-mA
avdd
+VA =5V,
+VBD=2.7V,
V =5V,
T =30°C
ref
A
0
50
100
150
200
250
300
350
400
450
500
4.5 4.75 5 5.25 5.5
+VA -SupplyVoltage-V
I -PowerdownCurrent-nA
avdd-pd
+VBD=2.7V,
V =4.096V,
f =0.0KSPS,
T =30°C
ref
s
A
0
2
4
6
8
10
12
14
16
18
20
0 50 100 150 200 250 300 350 400 450 500
f -SamplingFrequency-KSPS
s
I -PowerDissipation-mW
avdd*VA
+VA =5V,
+VBD=2.7V,
V =5V,
T =30°C
ref
A
0
50
100
150
200
250
300
350
400
450
500
-40 -25 -10 5 20 35 50 65 80
T -Free-AirTemperature-°C
A
I -PowerdownCurrent-nA
avdd-pd
+VA =5V,
+VBD=2.7V,
V =5V,
f =0.0KSPS
ref
s
ADS8318
www.ti.com SLAS568A –MAY 2008–REVISED MARCH 2011
TYPICAL CHARACTERISTICS (continued)
SIGNAL-TO-NOISE + DISTORTION TOTAL HARMONIC DISTORTION
vs vs
DC HISTORAM OF ADC CLOSE TO
INPUT FREQUENCY CENTER CODE SOURCE RESISTANCE
Figure 33. Figure 34. Figure 35.
SUPPLY CURRENT SUPPLY CURRENT SUPPLY CURRENT
vs vs vs
SUPPLY VOLTAGE FREE-AIR TEMPERATURE SAMPLING FREQUENCY
Figure 36. Figure 37. Figure 38.
POWER DISSIPATION POWERDOWN CURRENT POWERDOWN CURRENT
vs vs vs
SAMPLING FREQUENCY SUPPLY VOLTAGE FREE-AIR TEMPERATURE
Figure 39. Figure 40. Figure 41.
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