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參數(shù)資料
| 型號： | MAX1067BEEE |
| 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)： | 28/30頁 |
| 文件大?。?/td> | 447K |
| 代理商： | MAX1067BEEE |
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Total Harmonic Distortion
Total harmonic distortion (THD) is the ratio of the RMS
sum of the first five harmonics of the input signal to the
fundamental itself. This is expressed as:
where V
1
is the fundamental amplitude and V
2
through
V
5
are the 2nd- through 5th-order harmonics.
Spurious-Free Dynamic Range
Spurious-free dynamic range (SFDR) is the ratio of the
RMS amplitude of the fundamental (maximum signal
component) to the RMS value of the next-largest fre-
quency component.
Supplies, Layout, Grounding, and
Bypassing
Use printed circuit (PC) boards with separate analog
and digital ground planes. Do not use wire-wrap
boards. Connect the two ground planes together at the
MAX1067/MAX1068 AGND terminal. Isolate the digital
supply from the analog with a low-value resistor (10
)
or ferrite bead when the analog and digital supplies
come from the same source (Figure 25).
Constraints on sequencing the power supplies and
inputs are as follows:
Apply AGND before DGND.
Apply AIN_ and REF after AV
DD
and AGND are
present.
DV
DD
is independent of the supply sequencing.
Ensure that digital return currents do not pass through
the analog ground and that return-current paths are low
impedance. A 5mA current flowing through a PC board
ground trace impedance of only 0.05
creates an error
voltage of about 250μV and a 1 LSB error with a +4.096V
full-scale system.
The board layout should ensure that digital and analog
signal lines are kept separate. Do not run analog and dig-
ital lines (especially the SCLK and DOUT) parallel to one
another. If one must cross another, do so at right angles.
The ADC’s high-speed comparator is sensitive to high-
frequency noise on the AV
DD
power supply. Bypass an
excessively noisy supply to the analog ground plane
with a 0.1μF capacitor in parallel with a 1μF to 10μF
low-ESR capacitor. Keep capacitor leads short for best
supply-noise rejection.
T
+V
+V
+V
2
32
42
52
1
HD
V
V
=
×
20
2
log
M
Multichannel, 14-Bit, 200ksps Analog-to-Digital
Converters
28
______________________________________________________________________________________
SCLK
DOUT
AGND
DGND
AIN_
REF
AV
DD
DV
DD
DOUT
SCLK
CS
AIN_
+5V
10
1
μ
F
0.1
μ
F
0.1
μ
F
GND
MAX1067
MAX1068
AGND
CS
Figure 25. Powering AV
DD
and DV
DD
from a Single Supply
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1067CCEE | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
| MAX1067CEEE | Multichannel, 14-Bit, 200ksps Analog-to-Digital Converters |
| MAX1083 | 300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference |
| MAX1082 | 300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference |
| MAX1082-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 |
|---|---|
| MAX1067BEEE+ | 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 |
| MAX1067BEEE+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 |
| MAX1067BEEE-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 |
| MAX1067CCEE | 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 |
| MAX1067CCEE-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 |
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