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參數(shù)資料
| 型號： | MAX105ECS |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | ADC |
| 英文描述： | Dual, 6-Bit, 800Msps ADC with On-Chip, Wideband Input Amplifier |
| 中文描述： | 2-CH 6-BIT FLASH METHOD ADC, PARALLEL ACCESS, PQFP80 |
| 封裝： | 12 X 12 MM, 1 MM HEIGHT, EXPOSED PAD, TQFP-80 |
| 文件頁數(shù)： | 19/21頁 |
| 文件大?。?/td> | 669K |
| 代理商： | MAX105ECS |
clock design limits aperture jitter to typically 1.5ps
RMS
.
Figure 11 depicts the aperture jitter (t
AJ
), which is the
sample-to-sample variation in the aperture delay.
Aperture delay (t
AD
) is the time defined between the
rising edge of the sampling clock and the instant when
an actual sample is taken (
Figure 11).
Signal-to-Noise Ratio (SNR)
For a waveform perfectly reconstructed from digital
samples, the theoretical maximum SNR is the ratio of
the full-scale analog input (RMS value) to the RMS
quantization error (residual error). The ideal, theoretical
minimum analog-to-digital noise is caused by quantiza-
tion error only and results directly from the ADC
’
s reso-
lution (N-Bits):
SNR
MAX[dB]
= 6.02
dB
x N + 1.76
dB
In reality, there are other noise sources besides quanti-
zation noise: thermal noise, reference noise, clock jitter
(see
Aperture Uncertainties
). SNR is computed by tak-
ing the ratio of the RMS signal to the RMS noise, which
includes all spectral components minus the fundamen-
tal, the first four harmonics, and the DC offset.
Signal-to-Noise Plus Distortion (SINAD)
SINAD is computed by taking the ratio of the RMS sig-
nal to all spectral components minus the fundamental
and the DC offset.
Effective Number of Bits (ENOB)
ENOB specifies the dynamic performance of an ADC at
a specific input frequency, amplitude, and sampling
rate relative to an ideal ADC
’
s quantization noise. For a
full-scale input ENOB is computed from:
ENOB = (SINAD - 1.76
dB
) / 6.02
dB
Total Harmonic Distortion (THD)
THD is typically the ratio of the RMS sum of the first four
harmonics of the input signal to the fundamental itself.
This is expressed as:
where V1 is the fundamental amplitude, and V
through
V
are the amplitudes of the 2nd- through 5th-order har-
monics.
Spurious-Free Dynamic Range (SFDR)
SFDR is the ratio expressed in decibels of the RMS
amplitude of the fundamental to the RMS value of the
next largest spurious component, excluding DC offset.
Two-Tone Intermodulation
Distortion (IMD)
The two-tone IMD is the ratio expressed in decibels of
either input tone to the worst 3rd-order (or higher) inter-
modulation products. The individual input tone levels
are at -7dB full-scale and their envelope peaks at -1dB
full-scale.
Chip Information
TRANSISTOR COUNT: 12,286
THD
x
V
V
V
V
V
=
+
+
+
20
22
32
42
52
12
log (
)/
)
M
Dual, 6-Bit, 800Msps ADC with On-Chip,
Wideband Input Amplifier
______________________________________________________________________________________
19
CLK+
ANALOG
INPUT
SAMPLING
INSTANT
t
AW
t
AD
t
AJ
CLK-
t
AW
: APERTURE WIDTH
t
AJ
: APERTURE JITTER
t
AD
: APERTURE DELAY
MAX105
Figure 11. Aperture Timing
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX105ECS+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 6-Bit 800Msps OnChip Wdbnd In Amp 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 |
| MAX105ECS+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Dual 6-Bit 800Msps OnChip Wdbnd In Amp 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 |
| MAX105ECS-D | 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 |
| MAX105ECS-TD | 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 |
| MAX105EVKIT | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX105/7 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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