EVAL-AD7679CB Analog Devices Inc, EVAL-AD7679CB Datasheet - Page 13

• Manufacturer Part Number: EVAL-AD7679CB
• Description: BOARD EVAL FOR AD7679
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7679CB

• Number Of Adc's: 1
• Number Of Bits: 18
• Sampling Rate (per Second): 570k
• Data Interface: Serial, Parallel
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 89mW @ 500kSPS
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7679
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

120
100
180
160
140
120
100
–100
–120
–140
–160
–180
80
60
40
20
80
60
40
20
–20
–40
–60
–80
0
0
–1.00
Figure 12. Typical Negative DNL Distribution (424 Units)
Figure 11. Typical Positive DNL Distribution (424 Units)
0
0
0
30
60
Figure 13. FFT (10 kHz Tone)
–0.75
0.5
90
NEGATIVE DNL (LSB)
FREQUENCY (kHz)
POSITIVE DNL (LSB)
120
–0.50
1.0
150
180
–0.25
1.5
f
f
V
SNR = 98.5dB
THD = 115.8dB
SFDR = 117.4dB
S/(N+D) = 98.4dB
210
S
IN
REF
= 570kSPS
= 10kHz
= 4.096V
240
03085-0-011
03085-0-014
03085-0-012
270
2.0
0
Rev. A | Page 13 of 28
–100
–110
–120
–130
105
100
–60
–70
–80
–90
95
90
85
80
75
102
100
1
98
96
1
–60
Figure 15. THD, SFDR, and Harmonics vs. Frequency
Figure 14. SNR, S/(N+D), and ENOB vs. Frequency
Figure 16. SNR and S/(N+D) vs. Input Level
–50
10
10
FREQUENCY (kHz)
FREQUENCY (kHz)
–40
INPUT LEVEL (dB)
THD
SFDR
–30
100
100
–20
HARMONIC
SECOND
SNR
S/(N+D)
HARMONIC
V
ENOB
REF
S/(N+D)
THIRD
= 4.096V
–10
03085-0-015
03085-0-016
AD7679
03085-0-017
1000
SNR
1000
17.0
16.5
16.0
15.5
15.0
14.5
14.0
140
120
100
80
60
40
20
0
0