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AD7327 Datasheet(PDF) 10 Page - Analog Devices

Part No. AD7327
Description  500 kSPS, 8-Channel, Software-Selectable, True Bipolar Input, 12-Bit Plus Sign ADC
Download  36 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD7327 Datasheet(HTML) 10 Page - Analog Devices

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AD7327
Rev. 0 | Page 10 of 36
TYPICAL PERFORMANCE CHARACTERISTICS
0
–140
0
FREQUENCY (kHz)
–20
–40
–60
–80
–100
–120
50
100
150
200
250
4096 POINT FFT
VCC =VDRIVE =5V
VDD,VSS = ±15V
TA = 25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
FIN = 50kHz
SNR = 77.30dB
SINAD = 76.85dB
THD = –86.96dB
SFDR = –88.22dB
Figure 4. FFT True Differential Mode
0
–140
0
FREQUENCY (kHz)
–20
–40
–60
–80
–100
–120
50
100
150
200
250
4096 POINT FFT
VCC =VDRIVE =5V
VDD,VSS =±15V
TA =25°C
INT/EXT 2.5V REFERENCE
±10V RANGE
FIN = 50kHz
SNR = 74.67dB
SINAD = 74.03dB
THD = –82.68dB
SFDR = –85.40dB
Figure 5. FFT Single-Ended Mode
1.0
–1.0
0
8192
CODE
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC =VDRIVE =5V
TA =25°C
VDD,VSS = ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.72LSB
–DNL = –0.22LSB
Figure 6. Typical DNL True Differential Mode
1.0
–1.0
0
8192
CODE
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC =VDRIVE =5V
TA = 25°C
VDD,VSS = ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.55LSB
–INL = –0.68LSB
Figure 7. Typical INL True Differential Mode
1.0
–1.0
0
8192
CODE
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC =VDRIVE =5V
TA = 25°C
VDD,VSS = ±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+DNL = +0.79LSB
–DNL = –0.38LSB
Figure 8. Typical DNL Single-Ended Mode
1.0
–1.0
0
8192
CODE
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
1024
2048
3072
4096
5120
6144
7168
512
1536
2560
3584
4608
5632
6656
7680
VCC =VDRIVE =5V
TA = 25°C
VDD,VSS =±15V
INT/EXT 2.5V REFERENCE
±10V RANGE
+INL = +0.87LSB
–INL = –0.49LSB
Figure 9. Typical INL Single-Ended Mode


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