AD7768BSTZ datasheet(43/99 Pages) AD

43 / 99 page

AD7768/AD7768-4

Data Sheet

Rev. A | Page 43 of 99

Table 12. Wideband Filter Noise: Performance vs. Output Data Rate (VREF = 4.096 V)

Output Data Rate (kSPS)

−3 dB Bandwidth (kHz)

Shorted Input Dynamic Range (dB)

RMS Noise (µV)

Fast Mode

256

110.8

107.96

11.58

128

55.4

111.43

7.77

27.7

114.55

5.42

13.9

117.58

3.82

6.9

120.56

2.72

3.5

123.5

1.94

Median Mode

128

55.4

108.13

11.36

27.7

111.62

7.6

13.9

114.75

5.3

6.9

117.79

3.74

3.5

120.8

2.64

1.7

123.81

1.87

Eco Mode

13.9

108.19

11.28

6.9

111.69

7.54

3.5

114.83

5.25

1.7

117.26

3.71

0.87

120.88

2.62

0.43

123.88

1.85

Table 13. Sinc5 Filter Noise: Performance vs. Output Data Rate (VREF = 4.096 V)

Output Data Rate (kSPS)

−3 dB Bandwidth (kHz)

Shorted Input Dynamic Range (dB)

RMS Noise (µV)

Fast Mode

256

52.224

111.36

7.83

128

26.112

114.55

5.43

13.056

117.61

3.82

6.528

120.61

2.71

3.264

123.52

1.93

1.632

126.39

1.39

Median Mode

128

26.112

111.53

7.68

13.056

114.75

5.3

6.528

117.81

3.72

3.264

120.82

2.64

1.632

123.82

1.87

0.816

126.79

1.33

Eco Mode

6.528

111.57

7.65

3.264

114.82

5.26

1.632

117.88

3.7

0.816

120.9

2.61

0.408

123.91

1.85

0.204

126.89

1.31

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