AD7631BCPZ Analog Devices Inc, AD7631BCPZ Datasheet - Page 13

• Manufacturer Part Number: AD7631BCPZ
• Description: IC,A/D CONVERTER,SINGLE,18-BIT,CMOS,LLCC,48PIN
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of AD7631BCPZ

• Number Of Bits: 18
• Sampling Rate (per Second): 250k
• Data Interface: Serial, Parallel
• Number Of Converters: 1
• Power Dissipation (max): 120mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-VFQFN, CSP Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 12. SNR, SINAD, and ENOB vs. Frequency, Unipolar 5 V Range
100
98
96
94
92
90
88
86
84
82
80
–100
–120
–140
–160
–180
103
102
101
100
–20
–40
–60
–80
99
98
97
Figure 11. FFT 20 kHz, Bipolar 5 V Range, Internal Reference
1
0
–55
0
ENOB
–35
0V TO 10V
50
–15
Figure 13. SNR vs. Temperature
±5V
0V TO 5V
100
10
FREQUENCY (kHz)
±10V
5
SINAD
TEMPERATURE (°C)
FREQUENCY (kHz)
150
25
SNR
45
200
100
65
250
f
f
SNR = 98.3dB
THD = –116.8dB
SFDR = 121dB
SINAD = 97.8dB
S
IN
85
= 250kSPS
= 20.1kHz
105
300
1000
125
18.0
17.5
17.0
16.5
16.0
15.5
15.0
14.5
14.0
13.5
13.0
Rev. A | Page 13 of 32
Figure 15. THD, Harmonics, and SFDR vs. Frequency, Unipolar 5 V Range
–100
–110
–120
–130
–140
–70
–80
–90
103.0
102.5
102.0
101.5
101.0
100.5
100.0
Figure 14. SNR and SINAD vs. Input Level (Referred to Full Scale)
103
102
101
100
99
98
97
1
–55
–60
HARMONIC
THIRD
SFDR
–35
0V TO 10V
–50
THD
Figure 16. SINAD vs. Temperature
–15
±5V
±5V
0V TO 5V
10
–40
FREQUENCY (kHz)
5
±10V
TEMPERATURE (°C)
INPUT LEVEL (dB)
0V TO 5V
±10V
25
0V TO 10V
–30
45
100
–20
65
HARMONIC
SECOND
85
–10
105
AD7631
SNR
SINAD
1000
125
140
120
100
80
60
40
20
0
0