Block diagram, Zr431l – Diodes ZR431L User Manual
Page 3
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ZR431L
© Zetex Semiconductors plc 2008
Block diagram
Deviation of reference input voltage, V
dev
, is defined as
the maximum variation of the reference input voltage
over the full temperature range.
The average temperature coefficient of the reference
input voltage, V
ref
is defined as:
The dynamic output impedance, R
z
, is defined as:
When the device is programmed with two external
resistors, R1 and R2, (fig 2), the dynamic output
impedance of the overall circuit, R’, is defined as:
)
2
1
(
1000000
)
(
T
T
V
x
V
ppmIC
Vref
ref
dev
−
=
Z
Z
Z
I
V
R
Δ
Δ
=
)
2
1
1
(
'
R
R
R
R
Z
+
=
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