ADS8910B Datasheet, PDF (16/68 Pages) Texas Instruments – ADS891xB 18-Bit, High-Speed SAR ADCs With Integrated Reference Buffer, Integrated LDO, and multiSPI™ Digital Interface

ADS8910B
ADS8912B
ADS8914B
SBAS707A – JUNE 2016 – REVISED JULY 2016
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Typical Characteristics (continued)
at T_A = 25°C, RV_DD = 5.5 V, DV_DD = 3 V, V_REF = 5 V, and maximum-rated throughput (unless otherwise noted)
105
SNR
SINAD
103
ENOB
17.5
-121
17
-121.5
127
THD
SFDR
126
101
16.5
-122
125
99
16
-122.5
124
97
15.5
95
15
2.5
3
3.5
4
4.5
5
Reference Voltage (V)
D015
f_IN = 2 kHz
Figure 24. Noise Performance vs Reference Voltage
3.6
3.55
3.5
3.45
3.4
3.35
3.3
3.25
3
3.5
4
4.5
5
5.5
RV_DD
D026
Figure 26. Analog Supply Current vs Supply Voltage
-123
2.5
3
3.5
4
4.5
Reference Voltage (V)
f_IN = 2 kHz
123
5
D016
Figure 25. Distortion Performance vs Reference Voltage
4
3.75
3.5
3.25
3
-40
-7
26
59
92
125
Free-Air Temperature (qC)
D028
RV_DD = 5 V
Figure 27. Analog Supply Current vs Temperature
16
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