Maxim Integrated Voltage References 182

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Part RoHS Manufacturer Other IC type Temperature Grade No. of Terminals Package Code Package Shape Surface Mount Total Dose (V) Package Body Material Maximum Supply Current (Isup) Maximum Output Current Trim or Adjustable Output (V) No. of Functions Technology Screening Level Nominal Bandwidth Terminal Form Main Out Ripple Voltage Maximum Negative Supply Voltage (Vsup) Nominal Supply Voltage (Vsup) Maximum Voltage Tolerance Package Style (Meter) Package Equivalence Code Sub-Category Terminal Pitch Maximum Operating Temperature Minimum Output Voltage Minimum Operating Temperature Max Voltage Temp Coef Terminal Finish Maximum Output Voltage Terminal Position JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Supply Voltage (Vsup) Maximum Seated Height Width (mm) Qualification Minimum Supply Voltage (Vsup) Additional Features Minimum Negative Supply Voltage (Vsup) JESD-609 Code Maximum Time At Peak Reflow Temperature (s) No. of Outputs Peak Reflow Temperature (C) Length Nominal Output Voltage

ICL8069BMSQ-2

Maxim Integrated

MILITARY

2

NO

METAL

NO

BIPOLAR

2 %

SIP2,.1

Voltage References

2.54 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

SINGLE

Not Qualified

e0

1.23 V

MAX6012BEUR

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

3

TSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BIPOLAR

GULL WING

5 V

.48 %

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TO-236

Voltage References

.953 mm

85 Cel

1.241 V

-40 Cel

30 ppm/Cel

TIN LEAD

1.253 V

DUAL

R-PDSO-G3

1

12.6 V

1.194 mm

1.2955 mm

Not Qualified

2.5 V

e0

1

2.8575 mm

1.247 V

MAX6102EUR

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

3

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

GULL WING

5 V

.4 %

SMALL OUTLINE

TO-236

Voltage References

.952 mm

85 Cel

2.49 V

-40 Cel

75 ppm/Cel

TIN LEAD

2.51 V

DUAL

R-PDSO-G3

1

12.6 V

1.194 mm

1.2955 mm

Not Qualified

2.7 V

e0

1

2.8575 mm

2.5 V

MAX6043BAUT25-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

.1 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

SOP6,.11,37

Voltage References

.95 mm

125 Cel

2.4975 V

-40 Cel

25 ppm/Cel

TIN LEAD

2.5025 V

DUAL

R-PDSO-G6

1

40 V

1.45 mm

1.625 mm

Not Qualified

4.5 V

e0

1

2.9 mm

2.5 V

MAX6043BAUT33-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

10 V

.1 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

SOP6,.11,37

Voltage References

.95 mm

125 Cel

3.2967 V

-40 Cel

25 ppm/Cel

TIN LEAD

3.3033 V

DUAL

R-PDSO-G6

1

40 V

1.45 mm

1.625 mm

Not Qualified

5.3 V

e0

1

2.9 mm

3.3 V

MAX6043CAUT25-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

.5 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

SOP6,.11,37

Voltage References

.95 mm

125 Cel

2.4876 V

-40 Cel

65 ppm/Cel

TIN LEAD

2.5125 V

DUAL

R-PDSO-G6

1

40 V

1.45 mm

1.625 mm

Not Qualified

4.5 V

e0

1

2.9 mm

2.5 V

MAX6043CAUT50-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

15 V

.5 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

TSOP6,.11,37

Voltage References

.95 mm

125 Cel

4.9751 V

-40 Cel

65 ppm/Cel

TIN LEAD

5.025 V

DUAL

R-PDSO-G6

1

40 V

1.45 mm

1.625 mm

Not Qualified

7 V

e0

1

2.9 mm

5 V

MAX6126A25

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

TSSOP

SQUARE

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Voltage References

.65 mm

125 Cel

2.4985 V

-40 Cel

5 ppm/Cel

TIN LEAD

2.5015 V

DUAL

S-PDSO-G8

1

12.6 V

1.1 mm

3 mm

Not Qualified

2.7 V

e0

1

3 mm

2.5 V

MAX6126A30

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

TSSOP

SQUARE

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Voltage References

.65 mm

125 Cel

2.9982 V

-40 Cel

5 ppm/Cel

TIN LEAD

3.0018 V

DUAL

S-PDSO-G8

1

12.6 V

1.1 mm

3 mm

Not Qualified

3.2 V

e0

1

3 mm

3 V

MAX6126A41

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

TSSOP

SQUARE

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Voltage References

.65 mm

125 Cel

4.0935 V

-40 Cel

5 ppm/Cel

TIN LEAD

4.0985 V

DUAL

S-PDSO-G8

1

12.6 V

1.1 mm

3 mm

Not Qualified

4.3 V

e0

1

3 mm

4.096 V

MAX6126A50

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

TSSOP

SQUARE

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5.5 V

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP8,.19

Voltage References

.65 mm

125 Cel

4.997 V

-40 Cel

5 ppm/Cel

TIN LEAD

5.003 V

DUAL

S-PDSO-G8

1

12.6 V

1.1 mm

3 mm

Not Qualified

5.2 V

e0

1

3 mm

5 V

MAX6126AASA21-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

2.0476 V

-40 Cel

5 ppm/Cel

TIN LEAD

2.0484 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

2.7 V

e0

1

4.9 mm

2.048 V

MAX6126BASA21-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

2.0468 V

-40 Cel

10 ppm/Cel

TIN LEAD

2.0492 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

2.7 V

e0

1

4.9 mm

2.048 V

MAX6133AASA50-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5.5 V

.04 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

4.998 V

-40 Cel

7 ppm/Cel

TIN LEAD

5.002 V

DUAL

R-PDSO-G8

12.6 V

1.75 mm

3.9 mm

Not Qualified

5.2 V

e0

1

4.9 mm

5 V

MAX6133BASA41-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

.08 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

4.0927 V

-40 Cel

10 ppm/Cel

TIN LEAD

4.0993 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

4.2 V

e0

1

4.9 mm

4.096 V

MAX6150ESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

125 mA

NO

1

GULL WING

5.2 V

2 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

4.9 V

-40 Cel

50 ppm/Cel

TIN LEAD

5.1 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

5.2 V

e0

1

4.9 mm

5 V

MAX6162AESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE

1.27 mm

85 Cel

2.046 V

-40 Cel

5 ppm/Cel

TIN LEAD

2.05 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

2.5 V

e0

1

4.9 mm

2.048 V

MAX6164BESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE

1.27 mm

85 Cel

4.091 V

-40 Cel

10 ppm/Cel

TIN LEAD

4.101 V

DUAL

R-PDSO-G8

12.6 V

1.75 mm

3.9 mm

Not Qualified

4.296 V

e0

1

4.9 mm

4.096 V

MAX6165AESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5.5 V

SMALL OUTLINE

1.27 mm

85 Cel

4.998 V

-40 Cel

5 ppm/Cel

TIN LEAD

5.002 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

5.2 V

e0

1

4.9 mm

5 V

MAX6165BESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5.5 V

SMALL OUTLINE

1.27 mm

85 Cel

4.995 V

-40 Cel

10 ppm/Cel

TIN LEAD

5.005 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

5.2 V

e0

1

4.9 mm

5 V

MAX6167AESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

SMALL OUTLINE

1.27 mm

85 Cel

4.498 V

-40 Cel

5 ppm/Cel

TIN LEAD

4.502 V

DUAL

R-PDSO-G8

12.6 V

1.75 mm

3.9 mm

Not Qualified

4.7 V

e0

1

4.9 mm

4.5 V

MAX6168AESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

5 V

.11 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

1.798 V

-40 Cel

5 ppm/Cel

TIN LEAD

1.802 V

DUAL

R-PDSO-G8

12.6 V

1.75 mm

3.9 mm

Not Qualified

2.5 V

e0

1

4.9 mm

1.8 V

MAX6191BESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BIPOLAR

GULL WING

5 V

.25 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

2.043 V

-40 Cel

10 ppm/Cel

TIN LEAD

2.053 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

2.5 V

e0

1

4.9 mm

2.048 V

MAX6195CESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BIPOLAR

GULL WING

5.5 V

.2 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

4.99 V

-40 Cel

25 ppm/Cel

TIN LEAD

5.01 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

5.2 V

e0

1

4.9 mm

5 V

MAX6198CESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BIPOLAR

GULL WING

5 V

.25 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

4.086 V

-40 Cel

25 ppm/Cel

TIN LEAD

4.106 V

DUAL

R-PDSO-G8

1

12.6 V

1.75 mm

3.9 mm

Not Qualified

4.296 V

e0

1

4.9 mm

4.096 V

MAX6325ESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

3 mA

YES

1

GULL WING

.04 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

2.499 V

-40 Cel

1.5 ppm/Cel

TIN LEAD

2.501 V

DUAL

R-PDSO-G8

1

36 V

1.75 mm

3.9 mm

Not Qualified

8 V

e0

1

245

4.9 mm

2.5 V

MAX675CSA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

COMMERCIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

YES

1

BIPOLAR

GULL WING

15 V

.15 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

70 Cel

4.993 V

0 Cel

12 ppm/Cel

TIN LEAD

5.007 V

DUAL

R-PDSO-G8

33 V

1.75 mm

3.9 mm

Not Qualified

8 V

e0

1

4.9 mm

5 V

MAX875BESA-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

.375 mA

YES

1

BIPOLAR

GULL WING

15 V

.2 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

85 Cel

4.997 V

-40 Cel

20 ppm/Cel

TIN LEAD

5.003 V

DUAL

R-PDSO-G8

1

18 V

1.75 mm

3.9 mm

Not Qualified

7 V

e0

1

4.9 mm

5 V

MAX6037AAUK12-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

5

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

3 V

.2 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

TSOP5/6,.11,37

Voltage References

.95 mm

125 Cel

1.2475 V

-40 Cel

25 ppm/Cel

TIN LEAD

1.2525 V

DUAL

R-PDSO-G5

1

5.5 V

1.45 mm

1.625 mm

Not Qualified

2.5 V

e0

1

2.9 mm

1.25 V

MAX6037AAUK21-T

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

5

LSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

3 V

.2 %

SMALL OUTLINE, LOW PROFILE, SHRINK PITCH

TSOP5/6,.11,37

Voltage References

.95 mm

125 Cel

2.0439 V

-40 Cel

25 ppm/Cel

TIN LEAD

2.0521 V

DUAL

R-PDSO-G5

1

5.5 V

1.45 mm

1.625 mm

Not Qualified

2.5 V

e0

1

2.9 mm

2.048 V

MAX6143AASA10

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

YES

1

BICMOS

GULL WING

15 V

.05 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

9.995 V

-40 Cel

3 ppm/Cel

TIN LEAD

10.005 V

DUAL

R-PDSO-G8

1

40 V

1.75 mm

3.9 mm

Not Qualified

12 V

e0

1

245

4.9 mm

10 V

MAX6174BASA

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

YES

1

BICMOS

GULL WING

10 V

.1 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

4.0919 V

-40 Cel

10 ppm/Cel

TIN LEAD

4.1001 V

DUAL

R-PDSO-G8

40 V

1.75 mm

3.9 mm

Not Qualified

6.1 V

e0

1

4.9 mm

4.096 V

MAX6175BASA

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

YES

1

BICMOS

GULL WING

15 V

.1 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

4.995 V

-40 Cel

10 ppm/Cel

TIN LEAD

5.005 V

DUAL

R-PDSO-G8

40 V

1.75 mm

3.9 mm

Not Qualified

7 V

e0

1

4.9 mm

5 V

MAX6176AASA

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

8

SOP

RECTANGULAR

YES

PLASTIC/EPOXY

YES

1

BICMOS

GULL WING

15 V

.05 %

SMALL OUTLINE

SOP8,.25

Voltage References

1.27 mm

125 Cel

9.995 V

-40 Cel

3 ppm/Cel

TIN LEAD

10.005 V

DUAL

R-PDSO-G8

40 V

1.75 mm

3.9 mm

Not Qualified

12 V

e0

1

4.9 mm

10 V

REF01Z-G106

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

MILITARY

8

DIP

RECTANGULAR

NO

CERAMIC, GLASS-SEALED

YES

1

BIPOLAR

THROUGH-HOLE

15 V

.3 %

IN-LINE

DIP8,.3

Voltage References

2.54 mm

125 Cel

-55 Cel

8.5 ppm/Cel

DUAL

R-GDIP-T8

1

33 V

5.08 mm

7.62 mm

Not Qualified

13 V

1

10.29 mm

10 V

MAX6043BAUT10

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

TSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

BICMOS

GULL WING

.1 %

SMALL OUTLINE, THIN PROFILE

TSOP6,.11,37

Voltage References

.95 mm

125 Cel

-40 Cel

25 ppm/Cel

TIN LEAD

DUAL

R-PDSO-G6

1

Not Qualified

e0

10 V

MAX6043CAUT10

Maxim Integrated

THREE TERMINAL VOLTAGE REFERENCE

AUTOMOTIVE

6

TSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

BICMOS

GULL WING

.5 %

SMALL OUTLINE, THIN PROFILE

TSOP6,.11,37

Voltage References

.95 mm

125 Cel

-40 Cel

65 ppm/Cel

TIN LEAD

DUAL

R-PDSO-G6

1

Not Qualified

e0

10 V

MAX6138AEXR21/GG8

Maxim Integrated

TWO TERMINAL VOLTAGE REFERENCE

INDUSTRIAL

3

TSSOP

RECTANGULAR

YES

PLASTIC/EPOXY

NO

1

BICMOS

GULL WING

.1 %

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP3/6,.08

.65 mm

85 Cel

2.046 V

-40 Cel

25 ppm/Cel

2.05 V

DUAL

R-PDSO-G3

1.1 mm

1.25 mm

1

2 mm

2.048 V

Voltage References

Voltage references are electronic devices used to provide a stable, precise voltage output that is independent of changes in temperature, load, or input voltage. They are used in a wide range of electronic applications, including instrumentation, data acquisition systems, and power supplies.

Voltage references are typically designed to output a fixed voltage value, such as 2.5V or 5V, and can be based on various technologies, including zener diodes, bandgap references, and temperature-compensated voltage references.

Zener diode-based voltage references work by using the reverse breakdown voltage of a zener diode to generate a stable reference voltage. Bandgap references use the voltage difference between two junctions in a bipolar transistor to generate a stable voltage reference. Temperature-compensated voltage references use a combination of circuit elements to compensate for temperature changes and provide a stable voltage output.

Voltage references typically have a high level of accuracy and low drift over time, making them suitable for use in precision applications. They may also include features such as low power consumption, low noise, and short-circuit protection.