Resolution

Resolution at 5.0 V

PSØ21 resolution at 5 V Vio (SG & PSØ21_io) and 3.3 V (PSØ21_core)

(with SINC3 Filter, for Fast-settle multiply noise by 1.73)

Measuring rate
in Hz

ENOB

No. of LSB
@ 2 mV/V

Noise

SG Ratio

2 mV/V

3.3 mV/V

µV

ppm

50,000

18.3

9.3

10.0

625

16.000

3.200

35,000

18.4

9.4

10.1

695

14.400

2.880

20,000

19.4

10.4

11.1

1,333

7.500

1.500

10,000

20.8

11.8

12.5

3,400

2.900

0.580

4,000

22.2

13.2

13.9

9,500

1.050

0.210

2,000

22.9

13.9

14.6

15,100

0.660

0.132

1,000

23.5

14.5

15.2

22,700

0.440

0.088

500

24.0

15.0

15.7

32,700

0.305

0.061

250

24.5

15.5

16.2

47,600

0.210

0.042

100

25.3

16.3

17.0

83,000

0.120

0.024

25.8

16.8

17.5

117,000

0.085

0.017

26.5

17.5

18.2

192,000

0.055

0.010

27.1

18.1

18.8

277,000

0.036

0.007

27.5

18.5

19.2

384,000

0.026

0.005

28.1

19.1

19.8

555,000

0.018

0.004

Resolution at 3.0 V

PSØ21 resolution at 3 V Vio (Strain gage & PSØ21_io) and 3 V (PSØ21_core)

(with SINC3 Filter, for Fast-settle multiply noise by 1.73)

Measuring rate
in Hz

ENOB

No. of LSB
@ 2 mV/V

Noise

SG Ratio

2 mV/V

3.3 mV/V

µV

ppm

10,000

20.4

11.4

12.1

2,857

2.100

4,000

21.2

12.2

12.9

7,744

1.265

0.422

2,000

22.0

13.0

13.7

8,385

0.716

0.239

1,000

22.6

13.6

14.4

13,045

0.460

0.153

500

23.3

14.3

15.0

20,293

0.296

0.099

250

23.9

14.9

15.6

31,568

0.190

0.063

100

24.6

15.6

16.3

49,913

0.120

0.040

25.1

16.1

16.8

70,588

0.085

0.028

25.7

16.7

17.5

111,610

0.054

0.018

26.2

17.2

17.9

150,324

0.040

0.013

26.6

17.6

18.3

202,467

0.030

0.010

27.2

18.2

18.9

304,884

0.020

0.007

Resolution at 2.5 V

PSØ21 resolution at 2.5 V Vio (Stain gage & PSØ21_io) and 2.5 V (PSØ21_core)

(with SINC3 Filter, for Fast-settle multiply noise by 1.73)

Measuring rate in Hz

ENOB

No. of LSB
@ 2 mV/V

Noise

SG Ratio

2 mV/V

3.3 mV/V

µV

ppm

10,000

20.0

11.1

11.8

2,173

2.300

4,000

21.0

12.0

12.7

4,107

0.487

0.284

2,000

21.8

12.8

13.5

7,260

0.689

0.275

1,000

22.4

13.4

14.1

11,293

0.443

0.177

500

23.1

14.1

14.8

17,568

0.285

0.144

250

23.6

14.6

15.3

24,845

0.201

0.080

100

24.2

15.2

15.9

39,284

0.127

0.051

24.7

15.7

16.4

55,556

0.090

0.036

25.4

16.4

17.1

87,841

0.057

0.023

25.8

16.8

17.5

112,933

0.044

0.018

26.1

17.1

17.8

145,192

0.034

0.014

26.6

17.6

18.4

208,699

0.024

0.010