AD7298-1BCPZ-RL 查看數據表（PDF） - Analog Devices
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AD7298-1BCPZ-RL Datasheet PDF : 24 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
0
VDD = VDRIVE = 3V
–10
fSAMPLE = 1.17647MHz
fIN = 50kHz
–20
fSCLK = 20MHz
SNR = 61.83dB
–30
THD = –80.23dB
–40
–50
–60
–70
–80
–90
–100
–110
0
100
200
300
400
500
600
FREQUENCY (MHz)
Figure 3. Typical FFT
1.0
VDD = 3V
0.8
VDRIVE = 3V
0.6
0.4
0.2
0
0.2
0.4
–0.6
–0.8
–1.0
1
101 201 301 401 501 601 701 801 901 1001
CODE
Figure 4. Typical ADC INL
1.0
0.8
0.6
0.4
0.2
0
0.2
–0.4
–0.6
–0.8
–1.0
1
VDD = 3V
VDRIVE = 3V
101 201 301 401 501 601 701 801 901 1001
CODE
Figure 5. Typical ADC DNL
AD7298-1
0.50
0.40
0.30
0.20
INL (Positive)
0.10
0
–0.10
INL (Negative)
–0.20
–0.30
–0.40
–0.50
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
VREF (V)
Figure 6. INL vs. VREF
0.50
0.40
0.30
INL (Positive)
0.20
0.10
0
–0.10
–0.20
INL (Negative)
–0.30
–0.40
–0.50
1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6
VREF (V)
Figure 7. DNL vs. VREF
11
10
9
8
7
6
5
4
3
VDD = 3V
VDRIVE = 3V
2
0
0.5
1.0
1.5
2.0
2.5
EXTERNAL VOLTAGE REFERENCE (V)
Figure 8. Effective Number of Bits vs. VREF
Rev. A | Page 9 of 24
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