參數(shù)資料
型號: 5082-2830
廠商: AGILENT TECHNOLOGIES INC
元件分類: 射頻混頻器
英文描述: SILICON, MEDIUM BARRIER SCHOTTKY, C BAND, MIXER DIODE
文件頁數(shù): 2/2頁
文件大小: 46K
代理商: 5082-2830
3-63
Electrical Specifications at T
A = 25°C
Maximum
Measured
Maximum
Part
Maximum
Capacitance
V
F
Dynamic
Forward
Number
Capacitance
Difference
Resistance
Voltage
5082-
Package
Barrier
C
M (pF)
C
M (pF)
V
F (mV)
R
D ()VF (V)
2830
E4
Medium
0.5 Typ.
0.20
20
12
0.40
Test
V
R = 0
I
F = 5 mA
I
F = 1 mA
Conditions
f = 1 MHz
between Adjacent Leads
Measured
between
Adjacent Leads
Typical
Parameters
where IB is the bias current in
milliamperes. The series
resistance is independent of
current.
The dynamic resistance is more
easily measured. If series
resistance is specified, it is usually
obtained by subtracting the
calculated junction resistance
from the measured dynamic
resistance.
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. HP 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
Package Characteristics
The HP outline E4 package is
designed for MIC, Microstrip, and
Stripline use from dc through
C-Band. The leads provide a good
continuity of transmission line
impedance to the monolithic
diode array. The leads are tin
plated copper.
Dynamic and Series
Resistance
Schottky diode resistance may be
expressed as series resistance, RS,
or as dynamic ressitance, RD.
These two terms are related by
the equation
RD = RS = Rj
where Rj is the resistance of the
junction. Junction resistance of a
diode with DC bias is quite
accurately calculated by
Rj = 26/IB
calculated by the formulas given
below.
In a quad, the diagonal capaci-
tance is the capacitance between
points A and B as shown in 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 figure
below. This capacitance is
calculated using the following
formula
1
C
ADJACENT = C1 + ____________
1
–– + –– + ––
C
2
C
3
C
4
SPICE Parameters
Parameter
Units
5082-2830
B
V
V10
C
J0
pF
4
EG
eV
0.69
I
BV
A10E-5
I
S
A
2 x 10E - 10
N
1.08
RS
6
P
B
V
0.65
P
T
2
M
0.5
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