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AD7294 Datasheet(PDF) 15 Page - Analog Devices

Part # AD7294
Description  12-Bit Monitor and Control System with Multichannel
PDF  48 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7294 Datasheet(HTML) 15 Page - Analog Devices

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AD7294
Data Sheet
Rev. I | Page 14 of 47
TYPICAL PERFORMANCE CHARACTERISTICS
20
0
–20
–40
–60
–80
–100
–120
0
10000
8000
6000
4000
2000
FREQUENCY (kHz)
8192 POINT FFT
AVDD = DVDD = 5V
VDRIVE = 5V, VREF RANGE
FSAMPLE = 22.22kSPS
FIN = 10kHz, FSCLK = 400kHz
SINGLE ENDED
SNR = 71dB, THD = –82dB
Figure 6. Signal-to-Noise Ratio Single-Ended, VREF Range
20
0
–20
–40
–60
–80
–100
–120
0
10000
8000
6000
4000
2000
FREQUENCY (kHz)
8192 POINT FFT
AVDD = DVDD = 5V
VDRIVE = 5V, 2VREF RANGE
FSAMPLE = 22.22kSPS
FIN = 10kHz, FSCLK = 400kHz
SINGLE ENDED
SNR = 72dB, THD = –80dB
Figure 7. Signal-to-Noise Ratio Single-Ended, 2 × VREF Range
20
0
–20
–40
–60
–80
–100
–120
0
10000
8000
6000
4000
2000
FREQUENCY (kHz)
8192 POINT FFT
AVDD = DVDD = 5V
VDRIVE = 5V, VREF RANGE
FSAMPLE = 22.22kSPS
FIN = 10kHz, FSCLK = 400kHz
DIFFERENTIAL
SNR = 72dB, THD = –86dB
Figure 8. Signal-to-Noise Ratio Differential, VREF Range
20
0
–20
–40
–60
–80
–100
–120
0
10000
8000
6000
4000
2000
FREQUENCY (kHz)
8192 POINT FFT
AVDD = DVDD = 5V
VDRIVE = 5V, 2VREF RANGE
FSAMPLE = 22.22kSPS
FIN = 10kHz, FSCLK = 400kHz
DIFFERENTIAL
SNR = 73dB, THD = –82dB
Figure 9. Signal-to-Noise Ratio Differential, 2 × VREF Range
1.0
0.8
0.4
0.6
0.2
0
–0.4
–1.0
–0.8
–0.2
–0.6
CODE
256
512
0
768
1024
1280
1536
1792
2048
2304
2560
2816
3072
3328
3584
3840
4096
TA = 25°C
VDRIVE = 5V, VREF RANGE
VREF = 2.5V
VDD = 5V
SINGLE-ENDED
Figure 10. ADC INL Single-Ended, VREF Range
1.0
–1.0
–0.8
–0.6
–0.4
–0.2
0
0.2
0.8
0.4
0.6
CODE
TA = 25°C
VDRIVE = 5V, VREF RANGE
VREF = 2.5V
VDD = 5V
SINGLE-ENDED
256
512
0
768
1024
1280
1536
1792
2048
2304
2560
2816
3072
3328
3584
3840
4096
Figure 11. ADC DNL Single-Ended, VREF Range



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