CY8C58LP datasheet(83/122 Pages) CYPRESS

83 / 122 page

PRELIMINARY

PSoC® 5LP: CY8C58LP Family

Datasheet

Document Number: 001-84932 Rev. **

Page 83 of 122

Table 11-23. Delta-sigma ADC RMS Noise in Counts vs. Input Range and Sample Rate, 16-bit,

Internal Reference, Single Ended[43]

Sample rate,

Input Voltage Range

sps

0 to VREF

0 to VREF x 2

VSSA to VDDA

0 to VREF x 6

2000

1.21

1.02

1.14

0.99

3000

1.28

1.15

1.25

1.22

6000

1.36

1.22

1.38

1.22

12000

1.44

1.33

1.43

1.40

24000

1.67

1.50

1.43

1.53

48000

1.91

1.60

1.85

1.67

Table 11-24. Delta-sigma ADC RMS Noise in Counts vs. Input Range and Sample Rate, 16-bit,

Internal Reference, Differential[43]

Sample rate,

Input Voltage Range

sps

±VREF

±VREF / 2

±VREF / 4

±VREF / 8

±VREF / 16

2000

0.56

0.65

0.74

1.02

1.77

4000

0.58

0.72

0.81

1.10

1.98

8000

0.53

0.72

0.82

1.12

2.18

15625

0.58

0.72

0.85

1.13

2.20

32000

0.60

0.76

INVALID OPERATING REGION

43750

0.58

0.75

48000

0.59

Table 11-25. Delta-sigma ADC RMS Noise in Counts vs. Input Range and Sample Rate, 20-bit,

External Reference, Single Ended[43]

Sample rate,

Input Voltage Range

sps

0 to VREF

0 to VREF x 2

VSSA to VDDA

0 to VREF x 6

1.28

1.24

6.02

0.97

1.33

1.28

6.09

0.98

1.77

1.26

6.28

0.96

1.65

0.91

6.84

0.95

187

1.87

1.06

7.97

1.01

Table 11-26. Delta-sigma ADC RMS Noise in Counts vs. Input Range and Sample Rate, 20-bit,

External Reference, Differential[43]

Sample rate,

Input Voltage Range

sps

±VREF

±VREF / 2

±VREF / 4

±VREF / 8

±VREF / 16

0.70

0.84

1.02

1.40

2.65

11.3

0.69

0.86

0.96

1.40

2.69

22.5

0.73

0.82

1.25

1.77

2.67

0.76

0.94

1.02

1.76

2.75

0.75

1.01

1.13

1.65

2.98

170

0.75

0.98

INVALID OPERATING REGION

187

0.73

Note

43. The RMS noise (in volts) is the range (in volts) times noise in counts divided by 2^number of bits. RMS Noise = (Range × Counts) / 2^bits

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