Texas Instruments ADS79 EVM-PDK Series, Руководство пользователя

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69
69.5
70
70.5
71
71.5
72
2.7 3.4 4.1 4.8 5.5
SNR-Signal-to-NoiseRatio-dB
+VA - Supply Voltage - V
+VBD = 3 V,
f = 1 MSPS,
f = 100 kHz
T = 25°C
S
IN
A
69
69.5
70
70.5
71
71.5
72
2.7 3.4 4.1 4.8 5.5
SINAD-Signal-to-NoiseandDistortion-dB
+VA - Supply Voltage - V
+VBD = 3 V,
f = 1 MSPS,
f = 100 kHz
T = 25°C
S
IN
A
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
2
-40 15 70 125
T - Free-Air Temperature - °C
A
OffsetError-LSBs
+VA = 5.5 V,
+VBD = 1.8 V,
f = 1 MSPS
S
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
-40 15 70 125
+VA = 5.5 V,
+VBD = 1.8 V,
f = 1 MSPS
S
GainError-LSBs
T - Free-Air Temperature - °C
A
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3 5.5
+VBD - Interace Supply - V
GainError-LSBs
+VA = 5.5 V,
f = 1 MSPS,
T = 25°C
S
A
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
2.7 3.4 4.1 4.8 5.5
GainError-LSBs
+VA - Supply Voltage - V
+VBD = 1.8 V,
f = 1 MSPS,
T = 25°C
S
A
22
ADS7950, ADS7951, ADS7952, ADS7953, ADS7954, ADS7955
ADS7956, ADS7957, ADS7958, ADS7959, ADS7960, ADS7961
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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
Figure 17. Gain Error vs Supply Voltage
Figure 18. Gain Error vs Interface Supply Voltage
Figure 19. Offset Error vs Free-Air Temperature
Figure 20. Gain Error vs Free-Air Temperature
Figure 21. Signal-to-Noise Ratio vs Supply Voltage
Figure 22. Signal-to-Noise + Distortion vs Supply Voltage