ADS1271IPWR datasheet(11/40 Pages) TI2

11 / 40 page

ADS1271

SBAS306F − NOVEMBER 2004 − REVISED OCTOBER 2007

www.ti.com

TYPICAL CHARACTERISTICS (continued)

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

Figure 19

ABSOLUTE OFFSET DRIFT HISTOGRAM

1357

Absolute Offset Drift (

µV/_C)

outliers: T <

−20_C

30 units, based on 20

_C intervals

over the range

−40_C to +105_C

Figure 20

GAIN DRIFT HISTOGRAM

Gain Drift (ppm/

_C)

30 units, based on 20

intervals over the range

−40_Cto +105_C

Figure 21

OFFSET POWER−ON WARMUP

1020

4050

Time After Power−On (s)

−10

−20

−30

−40

High−Speed Mode

DVDD = 3.3V

Response

Band

Figure 22

GAIN ERROR POWER−ON WARMUP

3040

5060

Time After Power−On (s)

−2

−4

−6

−8

−10

High−Speed Mode

DVDD = 3.3V

Response

Band

Figure 23

UNCALIBRATED OFFSET HISTOGRAM

Uncalibrated Offset (

µV)

High−Speed Mode

30 Units

Figure 24

GAIN ERROR HISTOGRAM

Gain Error (ppm)

High−Speed Mode

30 Units

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