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参数资料
| 型号： | AB-175 |
| 英文描述： | AB-175 - CODING SCHEMES USED WITH DATA CONVERTERS |
| 中文描述： | 抗体- 175 -编码方案使用数据转换器 |
| 文件页数： | 5/5页 |
| 文件大小： | 37K |
| 代理商： | AB-175 |
5
DEFINITIONS (CONT)
V
CODE
= Code Voltage —The voltage corresponding to a
particular digital code in an ideal converter. For
digital-to-analog converters which provide a current
output mode of operation, V
actually referes to
a voltage after a current-to-voltage conversion.
Throughout the text, it is presumed that this
current-to-voltage conversion has occurred.
V
CODE
= (digital code)
10
* V
LSB
(Equation 2)
actually an analog range of voltages encompassed
by V
±
1/2V
. This is due to the inherent
quantization error of
±
1/2V
that is present in the
finite digital output of the ADC.
The value of (digital code)
10
* V
LSB
will be used
throughout this text to represent V
CODE
unless
otherwise stated.
+FS
= Positive Full Scale —The most positive end of an
analog signal’s range which is represented by a
digital code. A V
equal to the positive full
range (+FS) does not exist. The industry standard
is that the most positive voltage corresponding to a
digital code (maximum V
CODE
) is the positive full
scale voltage minus the voltage associated with
one LSB (+FS – 1V
). The text “positive full
scale” (or +FS) refers to this lesser, industry
standard value. This +FS industry standard is
primarily due to another industry standard in which
0V is a code voltage (see Equation 3) bounded by
the absolute value of
±
1/2V
LSB
. In a unipolar
system, this means that the analog voltage range
represented by a digital code corresponding to BPZ
is only 1/2V
. In bipolar systems, all digital codes
have analog ranges of 1V
LSB
, and a digital code
representing 0V is 0V
±
1/2V
LSB
(see Equation 3
and Equation 4).
–FS
= Negative Full Scale — The most negative end of
an analog signal’s range which is represented by a
digital code.
V
t
= Transition voltage — The voltage which corre-
sponds to the actual change of a digital code in
an ideal analog-to-digital converter. These
voltages are the voltages at each end of the range
of V
CODE
±
1/2V
LSB
.
V
t+
= V
CODE
+ 1/2V
LSB
(Equation 3)
V
t–
= V
CODE
– 1/2V
LSB
(Equation 4)
For an ideal digital-to-analog converter, the output
would be exactly V
CODE
, and the transition voltage
can be ignored.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AB1751171701 | 制造商:MCLEAN COOLING TECHNOLOGY 功能描述:IMPELLER;175MM;115V;50/60HZ;240/265 CFM;2515/2875 RPM;.3/.4A;54IN LEAD/CAP INCL 制造商:Pentair Technical Products / Hoffman 功能描述:ASSY, MI; 175MM, 115V, 44W |
| AB1752371701 | 制造商:MCLEAN COOLING TECHNOLOGY 功能描述:IMPELLER;175MM;230V;50/60HZ;240/265 CFM;2515/2875 RPM;.2/.2A;54IN LEAD/CAP INCL 制造商:Pentair Technical Products / Hoffman 功能描述:ASSY, MI; 175MM, 230V, 39/44W |
| AB-176 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AB-176 - EXCHANGING FILES ON THE CUSTOMER SERVICE ELECTRONIC BULLETIN BOARD |
| AB-178 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AB-178 - CDAC ARCHITECTURE PLUS RESISTOR DIVIDER GIVES ADC574 PINOUT WITH SAMPLING. LOW POWER. NEW INPUT RANGES |
| AB-179 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:AB-179 - VIDEO OPERATIONAL AMPLIFIER |
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