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參數(shù)資料
| 型號： | MAX1067AEEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
| 中文描述： | 4-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | 0.150 INCH, 0.250 INCH PITCH, MO-137AB, QSOP-16 |
| 文件頁數(shù)： | 27/30頁 |
| 文件大?。?/td> | 447K |
| 代理商： | MAX1067AEEE |
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M
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
______________________________________________________________________________________
27
Definitions
Integral Nonlinearity
Integral nonlinearity (INL) is the deviation of the values
on an actual transfer function from a straight line. This
straight line can be either a best-straight-line fit or a line
drawn between the end points of the transfer function,
once offset and gain errors have been nullified. The
static linearity parameters for the MAX1067/MAX1068
are measured using the end-point method.
Differential Nonlinearity
Differential nonlinearity (DNL) is the difference between
an actual step-width and the ideal value of ±1 LSB. A
DNL error specification of ±1 LSB guarantees no miss-
ing codes and a monotonic transfer function.
Aperture Definitions
Aperture jitter (t
AJ
) is the sample-to-sample variation in
the time between samples. Aperture delay (t
AD
) is the
time between the falling edge of the sampling clock
and the instant when the actual sample is taken.
Signal-to-Noise Ratio
For a waveform perfectly reconstructed from digital
samples, signal-to-noise ratio (SNR) is the ratio of the
full-scale analog input (RMS value) to the RMS quanti-
zation error (residual error). The ideal, theoretical mini-
mum analog-to-digital noise is caused by quantization
noise error only and results directly from the ADC’s res-
olution (N bits):
SNR = (6.02
N + 1.76)dB
In reality, there are other noise sources besides quanti-
zation noise: thermal noise, reference noise, clock jitter,
etc. SNR is computed by taking the ratio of the RMS
signal to the RMS noise, which includes all spectral
components minus the fundamental, the first five har-
monics, and the DC offset.
Signal-to-Noise Plus Distortion
Signal-to-noise plus distortion (SINAD) is the ratio of the
fundamental input frequency’s RMS amplitude to the
RMS equivalent of all the other ADC output signals:
SINAD (dB) = 20
log [Signal
RMS
/ (Noise +
Distortion)
RMS
]
Effective Number of Bits
Effective number of bits (ENOB) indicates the global
accuracy of an ADC at a specific input frequency and
sampling rate. An ideal ADC’s error consists of quanti-
zation noise only. With an input range equal to the full-
scale range of the ADC, calculate the ENOB as follows:
ENOB = (SINAD - 1.76) / 6.02
Figure 24 shows the ENOB as a function of the MAX1067/
MAX1068s’ input frequency.
DSP
EXTERNAL
CLOCK
SCLK
DSPR
DSPX
DIN
DOUT
SCLK
TFS
RFS
DT
DR
FL1
CS
MAX1068
Figure 23. DSP Interface Connection
0.1
10
100
FREQUENCY (kHz)
E
1
14
16
0
2
4
6
8
12
10
f
SAMPLE
= 200ksps
EFFECTIVE NUMBER OF BITS (ENOB)
Figure 24. Effective Bits vs. Frequency
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PDF描述 |
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| MAX1067BCEE | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
| MAX1067BEEE | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
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| MAX1083 | 300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1067AEEE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MULTICH 200KSPS ANLG-DGTL CNVTRS 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 |
| MAX1067AEEE+T | 制造商:Maxim Integrated Products 功能描述:- Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC ADC 14BIT SRL 200KSPS 16QSOP 制造商:Maxim Integrated Products 功能描述:MULTICH 200KSPS ANLG-DGTL CNVTRS |
| MAX1067AEEE-T | 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 |
| MAX1067BCEE | 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 |
| MAX1067BCEE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC MultiCh 14-Bit 200ksps 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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