參數(shù)資料
型號(hào)： ADS1271IPWR
元件分類： ADC
英文描述： 24 BIT WIDE BANDWIDTH ANALOG TO DIGITAL CONVERTER
中文描述： 24位寬帶模數(shù)轉(zhuǎn)換器
文件頁(yè)數(shù)： 21/29頁(yè)
文件大?。?/td> 381K
代理商： ADS1271IPWR
SBAS306A NOVEMBER 2004 REVISED DECEMBER 2004
www.ti.com
21
High-Resolution Mode
The oversampling ratio is 128 in High-Resolution mode.
Figure 52
shows
the
High-Resolution mode normalized to f
DATA
. Figure 53
shows the passband ripple, and the transition from
passband to stop band is illustrated in Figure 54. The
overall frequency response repeats at multiples of the
modulator frequency f
MOD
, (128
×
f
DATA
), as shown in
Figure 55. With such an extremely wide stop band, only a
simple antialias filter is typically required in front of the
ADS1271 inputs to limit out-of-band noise. See Table 8 for
more detail.
frequency
response
in
0
20
40
60
80
100
120
140
0.50
Normalized Input Frequency (f
IN
/f
DATA
)
A
0
0.25
0.75
1
Figure 52. Frequency Response for
High-Resolution Mode
0.02
0
0.02
0.04
0.06
0.08
0.10
0.2
Normalized Input Frequency (f
IN
/f
DATA
)
A
0
0.1
0.3
0.4
0.5
0.6
Figure 53. Passband Response for
High-Resolution Mode
0
1
2
3
4
5
6
7
8
9
10
Normalized Input Frequency (f
IN
/f
DATA
)
A
0.45
0.47
0.49
0.51
0.53
0.55
Figure 54. Transition Band Response for
High-Resolution Mode
20
0
20
40
60
80
100
120
140
160
G
Normalized Input Frequency (f
IN
/f
DATA
)
0
32
64
96
128
Figure 55. Frequency Response out to f
MOD
for
High-Resolution Mode
Table 8. Antialias Filter Order Image Rejection
ANTIALIAS
FILTER ORDER
IMAGE REJECTION (dB)
(f3dB at fDATA)
HS, LP
HR
1
39
45
2
75
87
3
111
129
相關(guān)PDF資料
PDF描述
ADS1271EVM-PDK modular EVM form factor
ADS1271EVM modular EVM form factor
ADS1601 16-BIT 1.25MSPS ANALOG TO DIGITAL CONVERTER
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ADS1601IPFBT 16-BIT 1.25MSPS ANALOG TO DIGITAL CONVERTER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1271IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 24-Bit 105kSPS Ind Delta-Sigma 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
ADS1274 制造商:BB 制造商全稱:BB 功能描述:Quad/Octal, Simultaneous Sampling, 24-Bit Analog-to-Digital Converters
ADS1274EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS1274EVM Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS1274EVM-PDK 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS1274EVM-PDK Demo Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
ADS1274IPAPR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Quad 128kHz Simul 24B Delta Sigma 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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