EVAL-AD7298SDZ 查看數據表（PDF） - Analog Devices
零件编号
产品描述 (功能)
生产厂家
EVAL-AD7298SDZ Datasheet PDF : 24 Pages
| |||
TYPICAL PERFORMANCE CHARACTERISTICS
0
VDD = VDRIVE = 3V
fSAMPLE = 1.17647MHz
–20
fIN = 50kHz
fSCLK = 20MHz
SNR = 72.621
THD = –82.562
–40
–60
–80
–100
–120
0
50 100 150 200 250 300 350 400 450 500
FREQUENCY (kHz)
Figure 3.Typical FFT
1.0
TA = 25°C
0.8 VDRIVE = 3V
VREF = 2.5V
0.6 VDD = 3 V
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
512 1024 1536 2048 2560 3072 3584 4096
256 768 1280 1792 2304 2816 3328 3840
CODE
Figure 4.Typical ADC INL
1.0
TA = 25°C
0.8
VDRIVE = 3V
VREF = 2.5V
0.6 VDD = 3 V
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
512 1024 1536 2048 2560 3072 3584 4096
256 768 1280 1792 2304 2816 3328 3840
CODE
Figure 5. Typical ADC DNL
AD7298
0.6
INL MAX
0.4
0.2
TA = 25°C
VDRIVE = 3V
0 VDD = 3V
0.2
INL MIN
0.4
0.6
1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75
REFERENCE VOLTAGE (V)
Figure 6. INL vs. VREF
0.6
DNL MAX
0.4
0.2
TA = 25°C
0
VDRIVE = 3V
VDD = 3V
–0.2
–0.4
DNL MIN
–0.6
1.00
12
11
10
9
8
7
6
5
4
3
2
0
1.25 1.50 1.75 2.00 2.25 2.50 2.75
REFERENCE VOLTAGE (V)
Figure 7. DNL vs. VREF
VDD = 3V
VDRIVE = 3V
0.5
1.0
1.5
2.0
2.5
VREF (V)
Figure 8. Effective Number of Bits vs. VREF
Rev. B | Page 9 of 24
Share Link: 