Data Sheet

ADR512

Rev. A | Page 7 of 12

PARAMETER DEFINITIONS

TEMPERATURE COEFFICIENT

This is 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

with the following equation:

( )

( )

(

) (

)

6

1

2

1

2

10

25

×

−

×

°

−

=









°

T

T

C

V

T

V

T

V

C

ppm

TCV

O

O

O

O

(1)

where:

THERMAL HYSTERESIS

Thermal hysteresis is defined as the change of output voltage

after the device is cycled through the temperature from +25°C

to −40°C to +85°C and back to +25°C. This is a typical value

from a sample of parts put through such a cycle.

[

]

(

)

(

)

6

_

_

_

_

10

25

25

)

25

(

×

°

−

°

=

−

°

=

C

V

V

C

V

ppm

V

V

C

V

V

O

TC

O

O

HYS

O

TC

O

O

HYS

O

(2)

where:

+85°C and back to +25°C