AD7193 Analog Devices, AD7193 Datasheet - Page 52

• Manufacturer Part Number: AD7193
• Description: 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
• Manufacturer: Analog Devices

Specifications of AD7193

• Resolution (bits): 24bit
• # Chan: 4
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni,SE-Uni,Usr-Defined Range/Offset
• Ain Range: ± (Vref/Gain)
• Adc Architecture: Sigma-Delta
• Pkg Type: SOP

AD7193
SUMMARY OF FILTER OPTIONS
The AD7193 has several filter options. The filter that is chosen
affects the output data rate, settling time, the rms noise, and the
50 Hz/60 Hz rejection.
Table 36. Filter Summary
Filter
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Sinc
Fast Settling (Sinc
Fast Settling (Sinc
Fast Settling (Sinc
Fast Settling (Sinc
Fast Settling (Sinc
Fast Settling (Sinc
1
2
3
4
These calculations assume a 4.92 MHz stable master clock.
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.
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.
For output dates rates greater than 1 kHz, the sinc
Zero Latency
Zero Latency
Disabled, Average by 16)
Disabled, Average by 16)
Disabled, Average by 16)
Disabled, Average by 16)
Disabled, Average by 16)
Disabled, Average by 16)
Zero Latency
4
4
3
4
3
4
4
3
3
4
3
4
4
4
4
3
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled
, Chop Disabled,
, Chop Disabled,
, Chop Disabled,
, Chop Enabled
, Chop Enabled
4
4
4
3
4
3
, Chop
, Chop
, Chop
, Chop
, Chop
, Chop
4
1
FS[9:0]
1
5
5
480
480
96
96
96
96
80
80
96
96
80
96
96
96
96
5
5
6
6
Output Data
Rate (Hz)
4800
960
960
10
10
50
50
50
50
60
60
12.5
12.5
15
12.5
16.7
2.63
2.78
50.53
53.33
42.10
44.44
4
filter is recommended.
Settling
Time (ms)
0.83
4.17
3.125
400
300
80
80
60
60
66.67
50
80
80
66.67
160
120
380
360
19.79
18.75
23.75
22.5
Rev. C | Page 52 of 56
Table 36 shows some sample configurations and the corresponding
performance in terms of throughput, settling time, and 50 Hz/
60 Hz rejection.
Throughput
1200
240
320
2.5
3.33
12.5
12.5
16.7
16.7
15
20
12.5
12.5
15
6.25
8.33
2.63
2.78
50.53
53.33
42.1
44.44
2
(Hz)
REJ60
0
0
0
0
0
0
1
0
1
0
0
0
1
0
1
1
1
1
0
0
0
0
50 Hz Rejection (dB)
No 50 Hz or 60 Hz rejection
No 50 Hz or 60 Hz rejection
No 50 Hz or 60 Hz rejection
120 dB (50 Hz and 60 Hz)
100 dB (50 Hz and 60 Hz)
120 dB (50 Hz only)
82 dB (50 Hz and 60 Hz)
95 dB (50 Hz only)
67 dB (50 Hz and 60 Hz)
120 dB (60 Hz only)
95 dB (60 Hz only)
120 dB (50 Hz only)
82 dB (50 Hz and 60 Hz)
120 dB (60 Hz only)
80 dB (50 Hz and 60 Hz)
67 dB (50 Hz and 60 Hz)
100 dB (50 Hz and 60 Hz)
94 dB (50 Hz and 60 Hz)
40 dB (60 Hz only)
40 dB (60 Hz only)
40 dB (50 Hz only)
40 dB (50 Hz only)
Data Sheet
3