ADFS7124-8BBCPZ datasheet(27/93 Pages) AD

27 / 93 page

Data Sheet

ADFS7124-8

RMS NOISE AND RESOLUTION

analog.com

Rev. 0 | 27 of 93

Table 7 through Table 36 show the RMS noise, peak-to-peak noise,

effective resolution, and noise-free (peak-to-peak) resolution of the

ADFS7124-8 for various output data rates, gain settings, and filters.

The numbers given are for the bipolar input range with an external

2.5 V reference. These numbers are typical and are generated with

a differential input voltage of 0 V when the ADC is continuously

converting on a single channel. It is important to note that the

effective resolution is calculated using the RMS noise, whereas the

peak-to-peak resolution (shown in parentheses) is calculated based

on peak-to-peak noise (shown in parentheses). The peak-to-peak

resolution represents the resolution for which there is no code

flicker.

Effective Resolution = Log2 (Input Range/RMS Noise)

Peak-to-Peak Resolution = Log2 (Input Range/Peak-to-Peak Noise)

FULL POWER MODE

Sinc4

Table 7. RMS Noise (Peak-to-Peak Noise) vs. Gain and Output Data Rate (µV), Full Power Mode

Filter

Word

(Dec.)

Output

Data

Rate

(SPS)

Output Data

Rate (Zero

Latency Mode)

(SPS)

f3dB

(Hz)

Gain = 1

Gain = 2

Gain = 4

Gain = 8

Gain = 16

Gain = 32

Gain = 64

Gain = 128

2047

9.4

2.34

2.16

0.24 (1.5)

0.15 (0.89)

0.091 (0.6)

0.071 (0.41)

0.045 (0.26)

0.031 (0.17)

0.025 (0.15)

0.023 (0.14)

1920

2.5

2.3

0.23 (1.5)

0.14 (0.89)

0.094 (0.6)

0.076 (0.42)

0.048 (0.27)

0.03 (0.19)

0.025 (0.16)

0.025 (0.15)

960

4.6

0.31 (2.1)

0.22 (1.3)

0.13 (0.89)

0.1 (0.6)

0.069 (0.41)

0.044 (0.26)

0.035 (0.22)

0.034 (0.22)

480

9.2

0.42 (3)

0.3 (2.1)

0.19 (1.4)

0.14 (0.97)

0.09 (0.63)

0.063 (0.39)

0.053 (0.34)

0.043 (0.27)

384

12.5

11.5

0.48 (3.2)

0.33 (2.1)

0.2 (1.3)

0.16 (1.1)

0.1 (0.75)

0.068 (0.43)

0.059 (0.42)

0.048 (0.28)

320

13.8

0.51 (3.3)

0.35 (2.4)

0.23 (1.3)

0.17 (1.2)

0.11 (0.78)

0.077 (0.5)

0.064 (0.41)

0.056 (0.35)

240

18.4

0.6 (4.8)

0.41 (3)

0.28 (1.8)

0.19 (1.3)

0.13 (0.86)

0.09 (0.54)

0.072 (0.48)

0.063 (0.45)

120

160

36.8

0.86 (6.9)

0.55 (4.1)

0.37 (2.5)

0.29 (2)

0.2 (1.2)

0.13 (0.84)

0.11 (0.7)

0.098 (0.6)

320

73.6

1.2 (8.9)

0.76 (6.1)

0.53 (4.1)

0.4 (2.7)

0.26 (1.8)

0.18 (1.2)

0.15 (0.95)

0.14 (0.86)

640

160

147.2

1.7 (13)

1.1 (8.8)

0.74 (5.7)

0.57 (4.1)

0.38 (2.9)

0.26 (2)

0.22 (1.6)

0.19 (1.4)

1280

320

294.4

2.4 (19)

1.6 (13)

1.1 (8.4)

0.82 (6)

0.55 (4)

0.38 (2.5)

0.3 (2.3)

0.26 (1.8)

2400

600

552

3.3 (25)

2.3 (16)

1.5 (12)

1.2 (8)

0.76 (6)

0.53 (4)

0.43 (3.2)

0.37 (2.7)

4800

1200

1104

4.9 (38)

3.4 (25)

2.4 (20)

2 (13)

1.3 (9.1)

0.83 (6.4)

0.68 (4.8)

0.58 (4.3)

9600

2400

2208

8.8 (76)

6.8 (61)

4.9 (34)

4.3 (27)

2.6 (21)

1.7 (13)

1.3 (12)

1.2 (9.4)

19,200

4800

4416

72 (500)

38 (270)

21 (150)

13 (95)

7.5 (57)

4.4 (33)

3.3 (26)

2.8 (23)

Table 8. Effective Resolution (Peak-to-Peak Resolution) vs. Gain and Output Data Rate (Bits), Full Power Mode

Filter

Word

(Dec.)

Output Data

Rate (SPS)

Output Data Rate

(Zero Latency Mode)

(SPS)

Gain = 1

Gain = 2

Gain = 4

Gain = 8

Gain = 16

Gain = 32

Gain = 64

Gain = 128

2047

9.4

2.34

24 (21.7)

24 (21.4)

23.7 (21)

23.1 (20.5)

22.7 (20.2)

22.3 (19.8)

21.6 (19)

20.7 (18.1)

1920

2.5

24 (21.7)

24 (21.4)

23.7 (21)

23 (20.5)

22.6 (20.1)

22.3 (19.7)

21.6 (19)

20.7 (18.1)

960

23.9 (21.2)

23.5 (20.8)

23.2 (20.4)

22.5 (20)

22.1 (19.5)

21.8 (19.2)

21.1 (18.4)

20.1 (17.4)

480

23.5 (20.7)

23 (20.3)

22.6 (19.8)

22.1 (19.3)

21.7 (18.9)

21.2 (18.6)

20.5 (17.8)

19.8 (17.1)

384

12.5

23.3 (20.5)

22.9 (20.2)

22.5 (19.6)

21.9 (19.1)

21.5 (18.7)

21.1 (18.5)

20.4 (17.7)

19.6 (17)

320

23.2 (20.3)

22.8 (20)

22.4 (19.5)

21.8 (19)

21.4 (18.6)

21 (18.3)

20.2 (17.6)

19.4 (16.6)

240

23 (20)

22.6 (19.7)

22.1 (19.3)

21.6 (18.9)

21.2 (18.5)

20.7 (18.1)

20 (17.3)

19.2 (16.4)

120

160

22.5 (19.5)

22.1 (19.2)

21.7 (18.9)

21 (18.3)

20.6 (18)

20.1 (17.5)

19.5 (16.9)

18.6 (16)

320

22 (19.1)

21.6 (18.6)

21.2 (18.2)

20.6 (17.8)

20.2 (17.4)

19.7 (17)

19 (16.3)

18.1 (15.5)

640

160

21.5 (18.5)

21.1 (18.1)

20.7 (17.7)

20.1 (17.2)

19.7 (16.8)

19.2 (16.3)

18.5 (15.6)

17.6 (14.8)

1280

320

21 (18)

20.5 (17.6)

20.2 (17.2)

19.5 (16.7)

19.1 (16.3)

18.7 (15.9)

18 (15.1)

17.2 (14.4)

2400

600

20.5 (17.5)

20.1 (17.2)

19.7 (16.7)

19 (16.2)

18.6 (15.7)

18.2 (15.3)

17.5 (14.6)

16.7 (13.8)

4800

1200

20 (17)

19.5 (16.5)

19 (16)

18.3 (15.6)

17.9 (15.1)

17.5 (14.6)

16.8 (14)

16 (13.2)

9600

2400

19.1 (16)

18.5 (15.3)

18 (15.1)

17.2 (14.5)

16.9 (13.9)

16.5 (13.5)

15.9 (12.7)

15 (12)

19,200

4800

16.1 (13.3)

16 (13.2)

15.9 (13)

15.5 (12.7)

15.4 (12.4)

15.1 (12.2)

14.6 (11.5)

13.8 (10.8)

ADFS7124-8BBCPZ 데이터시트(PDF) 27 Page - Analog Devices

ADFS7124-8BBCPZ 데이터시트(HTML) 27 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93

데이터시트 다운로드

링크 URL