參數資料
型號： EVAL-AD7194EBZ
廠商： Analog Devices Inc
文件頁數： 48/57頁
文件大?。?/td> 0K
描述： EVAL BOARD FOR AD7194
設計資源： EVAL-AD7zzzEBZ Schematic
AD7194 Gerber Files
標準包裝： 1
ADC 的數量： 1
位數： 24
數據接口： DSP，MICROWIRE?，QSPI?，串行，SPI?
工作溫度： -40°C ~ 105°C
已用 IC / 零件： AD7194
已供物品： 板，線纜
Data Sheet
AD7194
Rev. A | Page 51 of 56
SUMMARY OF FILTER OPTIONS
The AD7194 has several filter options. The filter that is chosen
affects the output data rate, settling time, the rms noise, the stop
band attenuation, and the 50 Hz/60 Hz rejection.
Table 36 shows some sample configurations and the
corresponding performance in terms of throughput, settling
time and 50 Hz/60 Hz rejection.
Table 36. Filter Summary1
Filter
FS[9:0]
Output Data
Rate (Hz)
Settling
Time (ms)
Throughput2 (Hz)
REJ60
50 Hz Rejection (dB)3
Sinc4, Chop Disabled4
1
4800
0.83
1200
0
No 50 Hz or 60 Hz rejection
Sinc4, Chop Disabled
5
960
4.17
240
0
No 50 Hz or 60 Hz rejection
Sinc3, Chop Disabled
5
960
3.125
320
0
No 50 Hz or 60 Hz rejection
Sinc4, Chop Disabled
480
10
400
2.5
0
120 dB ( 50 Hz and 60 Hz)
Sinc3, Chop Disabled
480
10
300
3.33
0
100 dB (50 Hz and 60 Hz)
Sinc4, Chop Disabled
96
50
80
12.5
0
120 dB (50 Hz only)
Sinc4, Chop Disabled
96
50
80
12.5
1
82 dB ( 50 Hz and 60 Hz)
Sinc3, Chop Disabled
96
50
60
16.7
0
95 dB (50 Hz only)
Sinc3, Chop Disabled
96
50
60
16.7
1
67 dB ( 50 Hz and 60 Hz)
Sinc4, Chop Disabled
80
60
66.67
15
0
120 dB (60 Hz only)
Sinc3, Chop Disabled
80
60
50
20
0
95 dB (60 Hz only)
Sinc4, Chop Disabled, Zero
Latency
96
12.5
80
12.5
0
120 dB (50 Hz only)
Sinc4, Chop Disabled, Zero
Latency
96
12.5
80
12.5
1
82 dB ( 50 Hz and 60 Hz)
Sinc4, Chop Disabled, Zero
Latency
80
15
66.67
15
0
120 dB (60 Hz only)
Sinc4, Chop Enabled
96
12.5
160
6.25
1
80 dB (50 Hz and 60 Hz)
Sinc3, Chop Enabled
96
16.7
120
8.33
1
67 dB (50 Hz and 60 Hz)
Fast Settling (Sinc4, Chop
Disabled, Average by 16)
96
2.63
380
2.63
1
100 dB (50 Hz and 60 Hz)
Fast Settling (Sinc4, Chop
Disabled, Average by 16)
96
2.78
360
2.78
1
94 dB (50 Hz and 60 Hz)
Fast Settling (Sinc4, Chop
Disabled, Average by 16)
5
50.53
19.79
50.53
0
40 dB (60 Hz only)
Fast Settling (Sinc3, Chop
Disabled, Average by 16)
5
53.33
18.75
53.33
0
40 dB (60 Hz only)
Fast Settling (Sinc4, Chop
Disabled, Average by 16)
6
42.10
23.75
42.1
0
40 dB (50 Hz only)
Fast Settling (Sinc3, Chop
Disabled, Average by 16)
6
44.44
22.5
44.44
0
40 dB (50 Hz only)
1
These calculations assume a 4.92 MHz stable master clock.
2
Throughput is the rate at which conversions are available when several channels are enabled. In zero latency mode, the output data rate and throughput are equal.
3
For fast settling mode, the 50 Hz/60 Hz rejection is measured in a band of ±0.5 Hz around 50 Hz and/or 60 Hz. For all other modes, a region of ±1 Hz around 50 Hz
and/or 60 Hz is used.
4
For output dates rates greater than 1 kHz, the sinc4 filter is recommended.
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