參數(shù)資料
型號(hào): HSMS-280E-BLKG
廠商: AGILENT TECHNOLOGIES INC
元件分類: 參考電壓二極管
英文描述: SILICON, MIXER DIODE
封裝: LEAD FREE, SC-70, 3 PIN
文件頁(yè)數(shù): 4/10頁(yè)
文件大?。?/td> 138K
代理商: HSMS-280E-BLKG
3
Quad Capacitance
Capacitance of Schottky diode
quads is measured using an
HP4271 LCR meter. This
instrument effectively isolates
individual diode branches from
the others, allowing accurate
capacitance measurement of each
branch or each diode. The
conditions are: 20 mV R.M.S.
voltage at 1 MHz. Agilent defines
this measurement as “CM”, and it
is equivalent to the capacitance of
the diode by itself. The equivalent
diagonal and adjacent
capacitances can then be
calculated by the formulas given
below.
In a quad, the diagonal capaci-
tance is the capacitance between
points A and B as shown in the
figure below. The diagonal
capacitance is calculated using
the following formula
C
1 x C2
C
3 x C4
C
DIAGONAL = _______ + _______
C
1 + C2
C
3 + C4
C1
C2
C4
C3
A
B
C
The equivalent adjacent
capacitance is the capacitance
between points A and C in the
figure below. This capacitance is
calculated using the following
formula
1
C
ADJACENT = C1 + ____________
1
–– + –– + ––
C
2
C
3
C
4
This information does not apply
to cross-over quad diodes.
SPICE Parameters
Parameter
Units
HSMS-280x
B
V
V75
C
J0
pF
1.6
E
G
eV
0.69
I
BV
AE - 5
I
S
A3E - 8
N
1.08
R
S
30
P
B
V
0.65
P
T
2
M
0.5
Cj
Rj
RS
Rj =
8.33 X 10
-5 nT
Ib + Is
where
Ib = externally applied bias current in amps
Is = saturation current (see table of SPICE parameters)
T = temperature,
°K
n = ideality factor (see table of SPICE parameters)
Note:
To effectively model the packaged HSMS-280x product,
please refer to Application Note AN1124.
RS = series resistance (see Table of SPICE parameters)
C j = junction capacitance (see Table of SPICE parameters)
Linear Equivalent Circuit, Diode Chip
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