0

10

20

30

40

50

60

-0.0125

-0.01

-0.0075 -0.005 -0.0025

0

0.0025

Solder Heat Shift Histogram - V

BIAS (%)

C040

-0.05

-0.04

-0.03

-0.02

-0.01

0

0.01

0.02

0.03

0.04

0.05

±75

±50

±25

0

25

50

75

100

125

150

Temperature (

ƒC)

C001

V

REF

V

BIAS

0

10

20

30

40

50

60

0

1

2

3

4

5

6

7

V

REF and VBIAS Tracking Over Temperature (ppm/ƒC)

C017

0

10

20

30

40

50

-0.0125

-0.01

-0.0075 -0.005 -0.0025

0

0.0025

Solder Heat Shift Histogram - V

REF (%)

C041

0

10

20

30

40

V

REF and VBIAS Matching (ppm)

C004

0

10

20

30

40

50

60

0

1

2

3

4

5

6

V

REF and VBIAS Tracking Over Temperature (ppm/ƒC)

C016

6

REF1925, REF1930, REF1933, REF1941

SBOS697A – SEPTEMBER 2014 – REVISED JANUARY 2017

www.ti.com

Product Folder Links: REF1925 REF1930 REF1933 REF1941

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Copyright © 2014–2017, Texas Instruments Incorporated

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.

Figure 1. VREF – 2 × VBIAS Distribution

–40°C

≤ TA ≤ 85°C

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

Over Temperature

–40°C

≤ TA ≤ 125°C

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

Over Temperature

Refer to the Solder Heat Shift section for more information.

Figure 4. Solder Heat Shift Distribution (VREF)

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