AD7951 Analog Devices, AD7951 Datasheet - Page 13

• Manufacturer Part Number: AD7951
• Manufacturer: Analog Devices

Specifications of AD7951

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 1MSPS
• Interface: Byte,Par,Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip 10V,Bip 5.0V,Uni 10V,Uni 5.0V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

–100
–120
–140
–160
88
86
84
82
80
78
86.0
85.5
85.0
84.5
84.0
–20
–40
–60
–80
1
0
–55
0
Figure 12. SNR, SINAD, and ENOB vs. Frequency
–35
100
–15
Figure 13. SNR vs. Temperature
Figure 11. FFT 20 kHz
FREQUENCY (kHz)
5
TEMPERATURE (°C)
FREQUENCY (kHz)
200
25
10
ENOB
45
300
65
f
f
SNR = 85.4dB
THD = –107dB
SFDR = 116dB
SINAD = 85.4dB
S
IN
85
= 1000kSPS
400
= 19.94kHz
SINAD
0V TO 5V
0V TO 10V
±5V
±10V
SNR
105
100
500
125
14.5
14.3
14.1
13.9
13.7
13.5
Rev. 0 | Page 13 of 32
–100
–110
–120
–130
–70
–80
–90
Figure 14. SNR and SINAD vs. Input Level (Referred to Full Scale)
86.0
85.5
85.0
84.5
84.0
86.5
86.0
85.5
85.0
1
–55
–60
SFDR
THD
THIRD
HARMONIC
SECOND
HARMONIC
Figure 15. THD, Harmonics, and SFDR vs. Frequency
SINAD
SNR
–35
–50
Figure 16. SINAD vs. Temperature
–15
–40
FREQUENCY (kHz)
5
TEMPERATURE (°C)
INPUT LEVEL (dB)
25
10
–30
45
–20
65
85
–10
0V TO 5V
0V TO 10V
±5V
±10V
105
AD7951
100
125
120
110
100
90
80
70
60
0