參數(shù)資料
型號： ADS1271EVM
廠商： Texas Instruments, Inc.
英文描述： modular EVM form factor
中文描述： 模塊化EVM的外形
文件頁數(shù)： 21/29頁
文件大小： 381K
代理商： ADS1271EVM
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
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相關代理商/技術參數(shù)
參數(shù)描述
ADS1271EVM-PDK 功能描述:數(shù)據(jù)轉換 IC 開發(fā)工具 ADS1271 Eval Mod 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
ADS1271IBPW 功能描述:模數(shù)轉換器 - ADC 24B 105kSPS Indus Delta-Sigma ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1271IBPW 制造商:Texas Instruments 功能描述:24BIT ADC 105KSPS DELTA S 16TSSOP 制造商:Texas Instruments 功能描述:24BIT ADC, 105KSPS, DELTA S, 16TSSOP 制造商:Texas Instruments 功能描述:24BIT ADC, 105KSPS, DELTA S, 16TSSOP; Resolution (Bits):24bit; Sampling Rate:105kSPS; Supply Voltage Type:Single; Supply Voltage Min:4.75V; Supply Voltage Max:5.25V; Supply Current:17mA; Digital IC Case Style:TSSOP; No. of Pins:16; ;RoHS Compliant: Yes
ADS1271IBPWG4 功能描述:模數(shù)轉換器 - ADC 24B 105kSPS Indus Delta-Sigma ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS1271IBPWR 功能描述:模數(shù)轉換器 - ADC 24B 105kSPS Indus Delta-Sigma ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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