EVAL-CED1Z3 View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
'EVAL-CED1Z3' PDF : 28 Pages View PDF
AD7626
92.0
91.8
91.6
91.4
91.2
EXTERNAL REFERENCE
91.0
90.8
INTERNAL REFERENCE
90.6
90.4
90.2
90.0
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 17. SNR vs. Temperature (−0.5 dB, 20 kHz Input Tone)
0.35
0.30
0.25
+INPUT CURRENT
0.20
0.15
0.10
0.05
–INPUT CURRENT
0
–0.05
–0.10
–6
–4
–2
0
2
4
6
INPUT COMMON-MODE VOLTAGE (V)
Figure 18. Input Current (IN+, IN−) vs. Differential Input Voltage (10 MSPS)
–103.0
–103.5
–104.0
EXTERNAL REFERENCE
–104.5
–105.0
–105.5
–106.0
–106.5
INTERNAL REFERENCE
–107.0
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 19. THD vs. Temperature (−0.5 dB, 20 kHz Input Tone)
92.0
91.8
91.6
91.4
91.2
91.0
EXTERNAL REFERENCE
90.8
90.6
INTERNAL REFERENCE
90.4
90.2
90.0
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 20. SINAD vs. Temperature (−0.5 dB, 20 kHz Input Tone)
7
6
5 GAIN ERROR
4
3
2
1
0 ZERO ERROR
–1
–40
–20
0
20
40
60
80
TEMPERATURE (°C)
Figure 21. Zero Error and Gain Error vs. Temperature
250,000
262,144 SAMPLES
STD DEVIATION = 0.4829
200,000
201,320
150,000
100,000
50,000
30,651
30,073
0
0
FEC7
54
FEC8
FEC9
FECA
FECB
46
FECC
0
FECD
CODE (HEX)
Figure 22. Histogram of 262,144 Conversions of a DC Input
at the Code Center (Internal Reference)
Rev. A | Page 12 of 2
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