ADR130BUJZ-R2 datasheet(11/16 Pages) AD

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ADR130

Rev. 0 | Page 11 of 16

TERMINOLOGY

Temperature Coefficient

Temperature coefficient is the change of output voltage with

respect to the operating temperature change normalized by the

output voltage at 25°C. This parameter is expressed in ppm/°C

and is determined by

[]

( )

()

ppm/

−

TCV

where:

(25°C) = VO at 25°C.

VO(T1)

= VO at Temperature 1.

(T2) = VO at Temperature 2.

Line Regulation

Line regulation is the change in the output due to a specified

change in input voltage. This parameter accounts for the effects

of self-heating. Line regulation is expressed in either %/V,

ppm/V, or μV/ΔVIN.

Load Regulation

Load regulation is 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

mV/mA, ppm/mA, or dc output resistance (Ω).

Long-Term Stability

Long-term stability is the typical shift of output voltage at 25°C

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

( )

−

[]

( )

()

ppm

−

where:

VO(t0) = VO at 25°C at Time 0.

VO(t1) = VO at 25°C after 1000 hours operating at 25°C.

Thermal Hysteresis

Thermal hysteresis is the change of output voltage after the

device is cycled through temperatures from +25°C to −40°C to

+125°C, then back to +25°C. This is a typical value from a

sample of parts put through such a cycle.

where:

VO(25°C) = VO at 25°C.

VOTC = VO at 25°C after temperature cycle from +25°C to −40°C

to +125°C, then back to +25°C.

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