38

37

36

35

34

33

32

31

30

29

28

27

26

25

24

-50

-25

0

25

50

75

100

Temperature( C)

°

10

1

0.1

0.01

0.001

1

10

100

250

SamplingRate(kHz)

100

10

1

0.1

0.01

1

10

100

250

SamplingRate(kHz)

0

-20

-40

-60

-80

-100

-120

-140

-160

0

50

25

75

100

125

Frequency(kHz)

95

90

85

80

75

1

10

100

200

Frequency(kHz)

SINAD

SNR

0

-20

-40

-60

-80

-100

-120

-140

-160

0

50

25

75

100

125

Frequency(kHz)

ADS8317

www.ti.com .................................................................................................................................................... SBAS356D – JUNE 2007 – REVISED OCTOBER 2009

TYPICAL CHARACTERISTICS: VDD = +5V (continued)

At TA = 25°C, VREF = 2.5V, fSAMPLE = 250kHz, fCLK = 24 × fSAMPLE, unless otherwise noted.

POWER-DOWN CURRENT vs TEMPERATURE

SUPPLY CURRENT vs SAMPLING RATE

Figure 8.

Figure 9.

FREQUENCY SPECTRUM

REFERENCE CURRENT vs SAMPLING RATE

(8192 point FFT, fIN = 1.9836kHz, –0.2dB)

Figure 10.

Figure 11.

FREQUENCY SPECTRUM

SIGNAL-TO-NOISE RATIO AND

(8192 Point FFT, fIN = 9.9792kHz, –0.2dB)

SIGNAL-TO-NOISE + DISTORTION vs INPUT FREQUENCY

Figure 12.

Figure 13.

Copyright © 2007–2009, Texas Instruments Incorporated

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