ADS1271IPWR datasheet(8/40 Pages) TI2

8 / 40 page

ADS1271

SBAS306F − NOVEMBER 2004 − REVISED OCTOBER 2007

www.ti.com

TYPICAL CHARACTERISTICS

TA = 25°C, AVDD = 5V, DVDD = 1.8V, fCLK = 27MHz, VREFP = 2.5V, VREFN = 0V, unless otherwise noted.

Figure 1

OUTPUT SPECTRUM

100

Frequency (Hz)

−20

−40

−60

−80

−100

−120

−140

−160

10k

100k

High−Speed Mode

IN = 1kHz, − 0.5dBFS

32,768 Points

Figure 2

OUTPUT SPECTRUM

100

Frequency (Hz)

−20

−40

−60

−80

−100

−120

−140

−160

10k

100k

High−Speed Mode

IN =1kHz, − 20dBFS

32,768 Points

Figure 3

OUTPUT SPECTRUM

0.1

100

Frequency (Hz)

−20

−40

−60

−80

−100

−120

−140

−160

−180

10k

100k

High−Speed Mode

Shorted Input

2,097,152 Points

Figure 4

NOISE HISTOGRAM

Output (

µV)

420k

360k

300k

240k

180k

120k

60k

High−Speed Mode

Shorted Input

2,097,152 Points

Figure 5

OUTPUT SPECTRUM

100

Frequency (Hz)

−20

−40

−60

−80

−100

−120

−140

−160

10k

100k

High−Resolution Mode

IN =1kHz, −0.5dBFS

32,768 Points

Figure 6

OUTPUT SPECTRUM

100

Frequency (Hz)

−20

−40

−60

−80

−100

−120

−140

−160

10k

100k

High−Resolution Mode

IN = 1kHz, − 20dBFS

32,768 Points

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