EVAL-AD7686CBZ Analog Devices Inc, EVAL-AD7686CBZ Datasheet - Page 9

• Manufacturer Part Number: EVAL-AD7686CBZ
• Description: BOARD EVALUATION FOR AD7686
• Manufacturer: Analog Devices Inc
• Series: PulSAR®r

Specifications of EVAL-AD7686CBZ

• Number Of Adc's: 1
• Number Of Bits: 16
• Sampling Rate (per Second): 500k
• Data Interface: Serial
• Inputs Per Adc: 1 Differential
• Input Range: ±VREF
• Power (typ) @ Conditions: 15mW @ 500kSPS, 5 V
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: AD7686
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL PERFORMANCE CHARACTERISTICS
250000
200000
150000
100000
50000
–100
–120
–140
–160
–180
–0.5
–1.0
–1.5
–2.0
–20
–40
–60
–80
2.0
1.5
1.0
0.5
0
0
0
Figure 8. Histogram of a DC Input at the Code Center
0
0
8026
0
20
Figure 7. Integral Nonlinearity vs. Code
40
8027
0
16384
60
8028
26
80
Figure 9. FFT Plot
FREQUENCY (kHz)
27583
8029
100
CODE IN HEX
32768
CODE
120
202719
8192 POINT FFT
VDD = REF = 5V
f
f
SNR = 92.8dB
THD = –108.7dB
SECOND HARMONIC = –110.1dB
THIRD HARMONIC = –119.2dB
802A
S
IN
= 500kSPS
= 19.99kHz
140 160 180
POSITIVE INL = +0.52LSB
NEGATIVE INL = –0.38LSB
30770
802B 802C 802D
49152
22
VDD = REF = 5V
200 220 240
0
802E
0
65535
Rev. B | Page 9 of 28
95
94
93
92
91
90
160000
140000
120000
100000
–10
80000
60000
40000
20000
–0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
Figure 11. Histogram of a DC Input at the Code Transition
0
0
0
8024
0
Figure 10. Differential Nonlinearity vs. Code
–8
Figure 12. SNR and THD vs. Input Level
8025
0
16384
THD
SNR
INPUT LEVEL (dB)
1703
8026
–6
124164
CODE IN HEX
8027
32768
CODE
–4
133575
8028
POSITIVE DNL = +0.35LSB
NEGATIVE DNL = –0.36LSB
1678
8029
49152
–2
VDD = REF = 5V
802A
0
AD7686
802B
0
–105
–108
–111
–114
–117
–120
0
65535