ADS7950_15 Datasheet, PDF (21/70 Pages) Texas Instruments – Single-Ended, MicroPower, Serial Interface ADCs

www.ti.com
ADS7950, ADS7951, ADS7952, ADS7953, ADS7954, ADS7955
ADS7956, ADS7957, ADS7958, ADS7959, ADS7960, ADS7961
SLAS605B – JUNE 2008 – REVISED JULY 2015
Typical Characteristics (12-Bit Devices Only) (continued)
Variations for 10-bit and 8-bit devices are too small to be illustrated through the characteristic curves
-80
90
-81
89
+VBD = 3 V,
f_S = 1 MSPS,
-82
88 fIN = 100 kHz
-83
87 ^{TA = 25°C}
-84
86
-85
85
-86
-87
-88
-89
-90
2.7
+VBD = 3 V,
f_S = 1 MSPS,
f_IN = 100 kHz
T_A = 25°C
3.4
4.1
4.8
5.5
+VA - Supply Voltage - V
84
83
82
81
80
2.7
3.4
4.1
4.8
5.5
+VA - Supply Voltage - V
Figure 23. Total Harmonic Distortion vs Supply Voltage
72
71.5
71
70.5
70
69.5
69
-40
+VA = 5 V
+VBD = 3 V,
f_S = 1 MSPS,
f_IN = 100 kHz
15
70
125
T_A - Free-Air Temperature - °C
Figure 24. Spurious Free Dynamic Range vs Supply Voltage
72
71.5
71
+VA = 5 V
+VBD = 3 V,
f_S = 1 MSPS,
f_IN = 100 kHz
70.5
70
69.5
69
-40
15
70
125
T_A - Free-Air Temperature - °C
Figure 25. Signal-To-Noise Ratio vs Free-Air Temperature
-80
-81
-82
-83
-84
-85
-86
-87
-88
-89
-90
-40
+VA = 5 V
+VBD = 3 V,
f_S = 1 MSPS,
f_IN = 100 kHz
15
70
125
T_A - Free-Air Temperature - °C
Figure 26. Signal-to-Noise + Distortion vs Free-Air
Temperature
90
89 ^{+VA = 5 V}
+VBD = 3 V,
88 ^fS ^{= 1 MSPS,}
87 ^{fIN = 100 kHz}
86
85
84
83
82
81
80
-40
15
70
125
T_A - Free-Air Temperature - °C
Figure 27. Total Harmonic Distortion vs Free-Air
Temperature
Figure 28. Spurious Free Dynamic Range vs Free-Air
Temperature
Copyright © 2008–2015, Texas Instruments Incorporated
Submit Documentation Feedback
21
Product Folder Links: ADS7950 ADS7951 ADS7952 ADS7953 ADS7954 ADS7955 ADS7956 ADS7957 ADS7958
ADS7959 ADS7960 ADS7961