ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

Rev. D | Page 15 of 20

TERMINOLOGY

Temperature Coefficient

The change of output voltage with respect to operating temper-

ature changes normalized by the output voltage at 25°C. This

parameter is expressed in ppm/°C and can be determined by

( )

( )

()

()

6

10

C

25

C]

ppm/

[

×

−

×

°

−

=

°

1

2

OUT

1

OUT

2

OUT

OUT

T

T

V

T

V

T

V

TCV

where:

Line Regulation

The change in output voltage due to a specified change in input

voltage. This parameter accounts for the effects of self-heating.

Line regulation is expressed in either percent per volt, parts per

million per volt, or microvolts per volt change in input voltage.

Load Regulation

The change in output voltage due to a specified change in load

current. This parameter accounts for the effects of self-heating.

Load regulation is expressed in either microvolts per milliampere,

parts per million per milliampere, or ohms of dc output resistance.

Long-Term Stability

The typical shift of output voltage at 25°C on a sample of parts

subjected to a test of 1000 hours at 25°C.

( )

()

1

OUT

0

OUT

OUT

t

V

t

V

V

−

=

Δ

[]

()

()

()

⎟⎟

⎠

⎞

⎜⎜

⎝

⎛

×

=

Δ

6

10

ppm

0

OUT

1

OUT

0

OUT

OUT

t

V

t

–V

t

V

V

where:

Thermal Hysteresis

The change of output voltage after the device is cycled from

+25°C to −40°C to +125°C and back to +25°C. This is a typical

value from a sample of parts put through such a cycle.

(

)

TC

OUT

OUT

HYS

OUT

V

V

V

_

_

C

25

−

°

=

[]

()

()

6

_

_

10

C

25

C

25

ppm

×

°

−

°

=

OUT

TC

OUT

OUT

HYS

OUT

V

V

V

V

where:

−40°C to +125°C and back to +25°C.