ADR360/ADR361/ADR363/ADR364/ADR365/ADR366

Rev. A | Page 10 of 20

TERMINOLOGY

Temperature Coefficient

The change of output voltage with respect to operating

temperature changes normalized by the output voltage at 25°C.

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

by

( )

( )

()

()

6

1

2

1

2

O

10

C

25

C]

ppm/

[

×

−

×

°

−

=

°

T

T

V

T

V

T

V

TCV

O

O

O

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

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

subjected to a test of 1,000 hours at 25°C.

( )

( )

1

0

t

V

t

V

V

O

O

O

−

=

Δ

[]

()

⎟⎟

⎠

⎞

⎜⎜

⎝

⎛

×

=

Δ

6

0

1

0

10

ppm

t

V

t

–V

t

V

V

O

O

O

O

where:

Thermal Hysteresis

The change of output voltage after the device is cycled through

temperature 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

O

O

HYS

O

V

V

V

_

_

C

25

−

°

=

[]

(

)

()

6

_

_

10

C

25

C

25

ppm

×

°

−

°

=

O

TC

O

O

HYS

O

V

V

V

V

where:

+125°C and back to +25°C.