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參數(shù)資料
| 型號： | HFA5251 |
| 廠商： | Intersil Corporation |
| 英文描述： | 800MHz Monolithic Pin Driver |
| 中文描述： | 800MHz的單片管腳驅動 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大小： | 137K |
| 代理商： | HFA5251 |
8
essential since large AC current will flow through either
V
CC2
or V
EE2
during transients.
The output of the pin driver is usually connected to the
device-under-test (DUT) through 50
micro-strip line and
coaxial cable which carries the signal to a high input
impedance DUT pin.
References
1. Chris K. Davis et. al., “UHF1: A High Speed Complemen-
tary Bipolar Analog Process on SOI,” Bipolar Circuits and
Technology Meeting Proceedings, pp260-263, October
1992.
2. Donald K. Whitney Jr., “Symmetrical, High Speed, Volt-
age Switching Circuit,” United States Patent Pending,
Filed November 1991.
Definition of Terms
V
OH
and V
OL
Output High Voltage and Output Low Voltage. V
OH
is the
voltage at V
OUT
when the HiZ input is Low and the DATA
input is High. V
OL
is the voltage at V
OUT
when HiZ is Low
and DATA is Low. The V
OH
and V
OL
levels are set with the
V
HIGH
and V
LOW
inputs respectively.
Offset Voltage
Offset Voltage is the DC error between the voltage placed on
V
HIGH
or V
LOW
and the resulting V
OH
and V
OL
. V
HIGH
Offset Voltage Error is obtained by measuring V
OH
with
V
HIGH
set to 0V and V
LOW
set to -2.5V to minimize
interaction effects. V
LOW
Offset Voltage Error is the
measurement of V
OL
with V
LOW
set to 0V and V
HIGH
set to
+7.5V.
Gain
Gain is defined as the ratio of output voltage change to input
voltage change for a defined range. V
HIGH
Gain is calculated
with the following equation with V
LOW
fixed at -2.5V
V
LOW
Gain is calculated in a similar manner.
V
HIGH
is held fixed at 7.5V. These Gain calculations
minimize the effects of Interaction and End Point
Nonlinearities.
Linearity Error
Linearity Error is a measure of output voltage worst case
deviation from a straight line that has been corrected for
offset and 7.5V Gain. Linearity Error is given as a
percentage of fullscale and is done in two ranges 5V and
8.5V. Data is measured at 0.5V steps from -1.5V to 7V for
V
HIGH
and -2V to 6.5V for V
LOW
. The Linearity Error
equation is as follows for 8.5V fullscale:
The Linearity Error equation is as follows for 5V fullscale:
Linearity Error is calculated for every data point in the range
and the worst case value is recorded.
End Point Deviation
End Point Deviation is the percent change of gain in the 1V
range at the extremes of output voltage. Gain is calculated
for each 0.5V step and then compared to the adjacent step
for a percentage change. This specification is designed to
quantify the amount of curvature present at the end points of
output swing. V
HIGH
and V
LOW
inputs are corrected for gain
and offset to provide more accurate V
OH
and V
OL
levels. For
example V
OH
End Point Deviation is tested in the range 5.7V
to 6.7V as shown below:
End Point Gain Error
End Point Gain Error (EPGE) is the V
OUT
absolute error in
millivolts for a V
HIGH
change from 6.7V to 7V. The V
HIGH
input is corrected for gain and offset to provide a more
accurate V
OH
level.
EPGE = V
OH
(V
HIGH
at 7V) - V
OH
(V
HIGH
at 6.7V) - 0.3
V
HIGH
to V
LOW
Interaction
V
HIGH
to V
LOW
Interaction is the change in V
OUT
(the active
channel) due to the inactive channel. V
HIGH
Interaction is
measured as the change in V
OH
from 1V as V
LOW
is moved
from 0V to 750mV (V
LOW
is corrected for gain and offset
errors). V
LOW
Interaction is measured as the change in V
OL
from 0V as V
HIGH
is moved from 1V to 250mV (with V
HIGH
corrected for gain and offset errors). The minimum
recommended difference between V
HIGH
and V
LOW
for the
HFA5251 is 250mV.
V
HIGH
GAIN
V
V
at 6.5V
----------------------------------------------------------------------------------------------------------------------
(
)
V
V
at -1V
(
)
–
=
V
LOW
GAIN
V
V
at 6V
-----------------------------------------------------------------------------------------------------------------
(
)
V
V
at -1.5V
(
)
–
=
V
OUT
IDEAL
(
)
V
---------------
OFFSET
–
=
LINEARITYERROR
V
--------------------------------------------------------------
V
IDEAL
(
)
–
=
LINEARITY ERROR
V
--------------------------------------------------------------
V
IDEAL
(
)
–
=
GAIN
6.7
6.2
–
V
V
at 6.7V
-------------------------------------------------------------------------------------------------------------------------
(
)
V
V
at 6.2V
(
)
–
=
GAIN
6.2
5.7
–
V
V
at 6.2V
-------------------------------------------------------------------------------------------------------------------------
(
)
V
V
at 5.7V
(
)
–
=
END POINT DEVIATION
GAIN
6.7
6.2
–
GAIN
6.2
5.7
–
–
100
×
=
HFA5251
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HFA5251 WAF | 制造商:Intersil Corporation 功能描述: |
| HFA5251Y | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Pin ATE Driver |
| HFA5253 | 制造商:HARRIS 制造商全稱:HARRIS 功能描述:800MHz, Ultra High-Speed Monolithic Pin Driver |
| HFA5253CB | 制造商:HARRIS 制造商全稱:HARRIS 功能描述:800MHz, Ultra High-Speed Monolithic Pin Driver |
| HFA5253CB WAF | 制造商:Harris Corporation 功能描述: |
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