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參數(shù)資料
| 型號： | ADC14161 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Low Dropout Linear 2-cell Li-Ion Charge Controller with AutoCompTM, 8.4V 8-SOIC -20 to 70 |
| 中文描述： | 低失真，自校準(zhǔn)14位，250 MSPS的，390毫瓦的A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 11/20頁 |
| 文件大?。?/td> | 471K |
| 代理商： | ADC14161 |
Specification Definitions
APERTURE JITTER
is the variation in aperture delay from
sample to sample. Aperture jitter shows up as input noise.
APERTURE DELAY
is the time required after the falling
edge of the clock for the sampling switch to open. In other
words, for the Track/Hold circuit to go from
″
track
″
mode into
the
″
hold
″
mode. The Track/Hold circuit effectively stops
capturing the input signal and goes into the
″
hold
″
mode t
AD
after the fall of the clock.
OFFSET ERROR
is the difference between the ideal LSB
transition to the actual transition point. The LSB transition
should occur when V
IN
+ = V
IN
.
DIFFERENTIAL NON-LINEARITY (DNL)
is the measure of
the maximum deviation from the ideal step size of 1 LSB.
EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE
BITS)
is another method of specifying Signal-to-Noise and
Distortion Ratio, or SINAD. ENOB is defined as (SINAD
1.76) / 6.02.
FULL SCALE ERROR
is the difference between the input
voltage [(V
+) (V
IN
)] just causing a transition to positive
full scale and V
REF
1.5 LSB, where V
REF
is ( V
REF
+
IN
)
(V
REF
IN
).
FULL POWER BANDWIDTH
is a measure of the frequency
at which the reconstructed output fundamental drops 3 dB
below its low frequency value for a full scale input. The test
is performed with f
IN
equal to 100 kHz plus integral multiples
of f
CLK
. The input frequency at which the output is 3 dB
relative to the low frequency input signal is the full power
bandwidth.
INTERMODULATION DISTORTION (IMD)
is the creation of
additional spectral components as a result of two sinusoidal
frequencies being applied to theADC input at the same time.
Timing Diagrams
It is defined as the ratio of the power in the intermodulation
products to the total power in the original frequencies. IMD is
usually expressed in dB.
INTEGRAL NON-LINEARITY (INL)
is a measure of the de-
viation of each individual code from a line drawn from nega-
tive full scale (
1
2
LSB below the first code transition) through
positive full scale (the last code transition). The deviation of
any given code from this straight line is measured from the
center of that code value.
PIPELINE DELAY (LATENCY)
is the number of clock cycles
between initiation of conversion and when that data is pre-
sented to the output stage. Data for any given sample is
available the Pipeline Delay plus the Output Delay after that
sample is taken. New data is available at every clock cycle,
but the data lags the conversion by the pipeline delay.
SIGNAL TO NOISE RATIO (SNR)
is the ratio, expressed in
dB, of the rms value of the input signal to the rms value of the
sum of all other spectral components below one-half the
sampling frequency, not including harmonics or dc.
SIGNAL TO NOISE PLUS DISTORTION (S/(N+D) or SI-
NAD)
) Is the ratio, expressed in dB, of the rms value of the
input signal to the rms value of all of the other spectral com-
ponents below half the clock frequency, including harmonics
but excluding dc.
SPURIOUS FREE DYNAMIC RANGE (SFDR)
is the differ-
ence, expressed in dB, between the rms values of the input
signal and the peak spurious signal, where a spurious signal
is any signal present in the output spectrum that is not
present at the input.
TOTAL HARMONIC DISTORTION (THD)
is the ratio, ex-
pressed in dB or dBc, of the rms total of the first six harmonic
components, to the rms value of the input signal.
DS100154-15
TIMING DIAGRAM 1. Output Timing
A
www.national.com
11
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADC14161A EA | 制造商:Texas Instruments 功能描述: |
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| ADC14161EVAL | 功能描述:BOARD EVALUATION FOR ADC14161 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| ADC141S625CIMM | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADC141S625CIMM/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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