ADR550ARTZ-REEL7 データシートの表示（PDF） - Analog Devices
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ADR550ARTZ-REEL7 Datasheet PDF : 16 Pages
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ADR520/ADR525/ADR530/ADR540/ADR550
PARAMETER DEFINITIONS
TEMPERATURE COEFFICIENT
Temperature coefficient is defined as the change in output
voltage with respect to operating temperature changes and is
normalized by the output voltage at 25°C. This parameter is
expressed in ppm/°C and is determined by the following
equation:
TCVO
⎡
⎢⎣
ppm
°C
⎤
⎥⎦
=
VOUT (T2 ) −
VOUT (25° C)
VOUT
× (T2
(T1 )
− T1
)
×
10
6
(1)
where:
VOUT(T2) = VOUT at Temperature 2.
VOUT(T1) = VOUT at Temperature 1.
VOUT(25°C) = VOUT at 25°C.
THERMAL HYSTERESIS
Thermal hysteresis is defined as the change in output voltage
after the device is cycled through temperatures ranging from
+25°C to −40°C, then to +85°C, and back to +25°C. The
following equation expresses a typical value from a sample of
parts put through such a cycle:
VOUT _ HYS = VOUT (25° C) − VOUT _ END
VOUT
_
HYS [ppm]
=
VOUT
(25° C) − VOUT
VOUT (25° C)
_
END
× 106
(2)
where:
VOUT(25°C) = VOUT at 25°C.
VOUT_END = VOUT at 25°C after a temperature cycle from +25°C to
−40°C, then to +85°C, and back to +25°C.
Rev. E | Page 7 of 16
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