AD7194 Analog Devices, AD7194 Datasheet - Page 17

• Manufacturer Part Number: AD7194
• Description: 8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA
• Manufacturer: Analog Devices

Specifications of AD7194

• Resolution (bits): 24bit
• # Chan: 8
• Sample Rate: n/a
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (2Vref/PGA Gain) p-p
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

FAST SETTLING
Table 12. RMS Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal)
96
30
6
5
2
1
Table 13. Peak-to-Peak Noise (nV) vs. Gain and Output Data Rate
Filter Word
(Decimal)
96
30
6
5
2
1
Table 14. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate
Filter Word
(Decimal)
96
30
6
5
2
1
1
The output peak-to-peak (p-p) resolution is listed in parentheses.
Average
16
16
16
16
16
16
Average
16
16
16
16
16
16
Average
16
16
16
16
16
16
Output Data
Rate (Hz)
2.63
8.4
42.10
50.53
126.32
252.63
Output Data
Rate (Hz)
2.63
8.4
42.10
50.53
126.32
252.63
Output Data
Rate (Hz)
2.63
8.4
42.10
50.53
126.32
252.63
Settling
Time (ms)
380
118.75
23.75
19.79
7.92
3.96
Settling
Time (ms)
380
118.75
23.75
19.79
7.92
3.96
Settling
Time (ms)
380
118.75
23.75
19.79
7.92
3.96
1
24 (21.9)
23.8 (21.2)
22.7 (19.9)
22.6 (19.8)
21.8 (19.3)
21.4 (18.7)
1
410
700
1500
1600
2700
3700
1
2500
4200
10,000
11,000
16,000
23,000
Rev. 0 | Page 17 of 56
8
87
140
270
280
380
540
8
450
900
1800
1900
2800
4500
8
23.8 (21.4)
23.1 (20.4)
22.1 (19.4)
22.1 (19.3)
21.6 (18.8)
21.1 (18.1)
16
52
71
150
160
210
300
16
260
470
950
1000
1500
2000
16
23.5 (21.2)
23.1 (20.3)
22 (19.3)
21.9 (19.3)
21.5 (18.7)
21 (18.3)
Gain of
Gain of
Gain of
32
23.2 (20.7)
22.8 (20.1)
21.9 (19.1)
21.8 (19)
21.2 (18.5)
20.6 (18)
32
33
43
82
88
130
190
32
180
280
540
580
850
1200
1
64
15
30
56
61
94
140
64
100
190
360
390
580
850
64
23.3 (20.6)
22.3 (19.6)
21.4 (18.7)
21.3 (18.6)
20.7 (18)
20.1 (17.5)
AD7194
128
22.6 (20.1)
21.8 (19.2)
20.7 (18)
20.5 (17.9)
19.8 (17.2)
19.3 (16.7)
128
12
21
47
52
85
120
128
70
130
300
330
510
740