MAX11040 datasheet(21/31 Pages) MAXIM

21 / 31 page

24-Bit, 4-Channel, Simultaneous-Sampling,

Cascadable, Sigma-Delta ADC

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Table 8. Examples of Output Data Rate as a Function of FSAMPC[2:0] and

FSAMPF[10:0] (continued)

FSAMPC[2:0]

FSAMPF[10:0]

OUTPUT DATA

RATE (sps)

OUTPUT DATA PERIOD

(24.576MHz CLOCK CYCLES)

FSAMPF OUTPUT DATA PERIOD

RESOLUTION

(24.576MHz CLOCK CYCLES)

11xxxxxxxxx

2000.7

12284

10111111111

2000.7

12284

00000000001

3997.4

6148

100

00000000000

4000.0

6144

11xxxxxxxxx

4001.3

6142

10111111111

4001.3

6142

00000000001

7994.8

3074

101

00000000000

8000.0

3072

11xxxxxxxxx

8002.6

3071

10111111111

8002.6

3071

00000000001

15990

1537

000

00000000000

16000

1536

11xxxxxxxxx

16010

1535

1011111111x

16010

1535

0000000001x

31958

769

110

0000000000x

32000

768

11xxxxxxxxx

32042

767

101111111xx

32042

767

000000001xx

63834

385

111

000000000xx

64000

384

Table 9. Typical Performance vs. Output Data Rate

OUTPUT

DATA RATE

(ksps)

-3dB

BANDWIDTH

(kHz)

-0.1dB

BANDWIDTH

(kHz)

LATENCY

(µs)

FAULT

RECOVERY

TIME (µs)

SNR OF 24-BIT

DATA (dB)

RELATIVE

ACCURACY OF

256 DATA

POINTS (%)

RELATIVE

ACCURACY OF

SINGLE CYCLE

AT 60Hz (%)

0.5

0.11

0.05

12030

16375

117

0.04

0.23

0.21

0.11

6030

8375

115

0.05

0.20

0.42

0.22

3030

4375

113

0.06

0.17

0.85

0.43

1530

2375

111

0.08

0.16

1.69

0.87

780

1375

108

0.11

0.16

2.11

1.09

630

1175

107

0.13

0.16

2.54

1.31

530

1042

106

0.14

0.16

3.38

1.74

405

875

105

0.16

6.78

3.48

218

625

0.40

0.28

13.5

6.96

124

500

2.51

1.26

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