REF1925 datasheet(6/31 Pages) TI1

6 / 31 page

-0.0125

-0.01

-0.0075 -0.005 -0.0025

0.0025

Solder Heat Shift Histogram - V

BIAS (%)

C040

-0.05

-0.04

-0.03

-0.02

-0.01

0.01

0.02

0.03

0.04

0.05

±75

±50

±25

100

125

150

Temperature (

C001

REF

BIAS

REF and VBIAS Tracking Over Temperature (ppm/SC)

C017

-0.0125

-0.01

-0.0075 -0.005 -0.0025

0.0025

Solder Heat Shift Histogram - V

REF (%)

C041

REF and VBIAS Matching (ppm)

C004

REF and VBIAS Tracking Over Temperature (ppm/SC)

C016

REF1925, REF1930, REF1933, REF1941

SBOS697 – SEPTEMBER 2014

www.ti.com

7.6 Typical Characteristics

At TA = 25°C, IL = 0 mA, VIN = 5-V power supply, CL = 0 µF, and 2.5-V output, unless otherwise noted.

–40°C

≤ TA ≤ 85°C

Figure 2. Distribution of VREF – 2 × VBIAS Drift Tracking

Figure 1. VREF – 2 × VBIAS Distribution

Over Temperature

–40°C

≤ TA ≤ 125°C

Refer to the Solder Heat Shift section for more information.

Figure 3. Distribution of VREF – 2 × VBIAS Drift Tracking

Figure 4. Solder Heat Shift Distribution (VREF)

Over Temperature

Refer to the Solder Heat Shift section for more information.

Figure 5. Solder Heat Shift Distribution (VBIAS)

Figure 6. Output Voltage Accuracy (VREF) vs Temperature

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