參數(shù)資料
型號(hào)： LMP90079MHE/NOPB
廠商： NATIONAL SEMICONDUCTOR CORP
元件分類： 模擬信號(hào)調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PDSO28
封裝： LEAD FREE, PLASTIC, MO-153, TSSOP-28
文件頁(yè)數(shù)： 7/62頁(yè)
文件大?。?/td> 1721K
代理商： LMP90079MHE/NOPB
14.0 Specific Definitions
COMMON MODE REJECTION RATIO
is a measure of how
well in-phase signals common to both input pins are rejected.
To calculate CMRR, the change in output offset is measured
while the common mode input voltage is changed.
CMRR
= 20 LOG(
ΔCommon Input / ΔOutput Offset)
EFFECTIVE NUMBER OF BITS (ENOB, or EFFECTIVE
BITS) –
says that the converter is equivalent to a perfect ADC
of this (ENOB) number of bits. LMP90080’s ENOB is a DC
ENOB spec, not the dynamic ENOB that is measured using
FFT and SINAD. Its equation is as follows:
GAIN ERROR
is the deviation from the ideal slope of the
transfer function.
INTEGRAL NON-LINEARITY (INL)
is a measure of the de-
viation of each individual code from a straight line through the
input to output transfer function. The deviation of any given
code from this straight line is measured from the center of that
code value. The end point fit method is used. INL for this
product is specified over a limited range, per the Electrical
Tables.
NEGATIVE FULL-SCALE ERROR
is the difference between
the differential input voltage at which the output code transi-
tions to negative full scale and (-VREF + 1LSB).
NEGATIVE GAIN ERROR
is the difference between the neg-
ative full-scale error and the offset error divided by (VREF /
Gain).
NOISE FREE RESOLUTION
is a method of specifying the
number of bits for a converter with noise.
ODR
Output Data Rate.
OFFSET ERROR
is the difference between the differential
input voltage at which the output code transitions from code
0000h to 0001h and 1 LSB.
POSITIVE FULL-SCALE ERROR
is the difference between
the differential input voltage at which the output code transi-
tions to positive full scale and (VREF – 1LSB).
POSITIVE GAIN ERROR
is the difference between the pos-
itive full-scale error and the offset error divided by (VREF /
Gain).
POWER SUPPLY REJECTION RATIO (PSRR)
is a measure
of how well a change in the analog supply voltage is rejected.
PSRR is calculated from the ratio of the change in offset error
for a given change in supply voltage, expressed in dB.
PSRR
= 20 LOG (
ΔVA / ΔOutput Offset)
15
www.national.com
LMP90080/LMP90079/LMP90078/LMP90077
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LMP90079MHX/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
LMP90080 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Sensor AFE System: Multi-Channel, Low-Power 16-Bit
LMP90080MH/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
LMP90080MHE/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
LMP90080MHX/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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