參數(shù)資料
型號: ADC12081
廠商: National Semiconductor Corporation
英文描述: 12-Bit, 5 MHz Self-Calibrating, Pipelined A/D Converter with Internal Sample & Hold(12位5 MHz可自行校對的管線式帶內(nèi)部采樣和保持功能A/D轉(zhuǎn)換器)
中文描述: 12位,5兆赫自校準,流水線A / D轉(zhuǎn)換器,內(nèi)置采樣
文件頁數(shù): 9/16頁
文件大?。?/td> 351K
代理商: ADC12081
Typical Performance Characteristics
(Continued)
Specification Definitions
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 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 integer 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.
FULL SCALE ERROR
is the difference between the input
voltage just causing a transition to positive full scale and
V
REF
-1.5 LSB.
INTEGRAL NON-LINEARITY (INL)
is a measure of the
deviation of each individual code from a line drawn from
negative full scale (
1
2
LSB below the first code transition)
through positive full scale (1
1
2
LSB above the last code
transition). The deviation of any given code from this straight
line is measured from the center of that code value.
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.
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.
PIPELINE DELAY (LATENCY)
is the number of clock cycles
between initiation of conversion and the availability of that
conversion result at the output. New data is available at
every clock cycle, but the data lags the conversion by the
pipeline delay.
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
components below half the clock frequency, including har-
monics but excluding dc.
SIGNAL TO NOISE RATIO (SNR)
is the ratio of the rms
value of the input signal to the rms value of the other spectral
components below one-half the sampling frequency, not in-
cluding harmonics or 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 of the
rms total of the first six harmonic components, to the rms
value of the input signal.
SNR vs Temperature
DS100150-13
SINAD vs Temperature
DS100150-14
THD vs Temperature
DS100150-15
A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADC12081_02 制造商:NSC 制造商全稱:National Semiconductor 功能描述:12-Bit, 5MHz Self-Calibrating, Pipelined A/D Converter with Internal Samble & Hold
ADC12081CIVT 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
ADC12081CIVT/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
ADC12081CIVTX 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
ADC12081CIVTX NOPB 制造商:National Semiconductor 功能描述:ADC Single Pipelined 5Msps 12-bit Parallel 32-Pin LQFP T/R