參數(shù)資料
型號(hào)： ADS1191IPBSR
廠商： Texas Instruments
文件頁(yè)數(shù)： 14/67頁(yè)
文件大?。?/td> 0K
描述： IC AFE 16BIT 8KSPS 1CH 32TQFP
標(biāo)準(zhǔn)包裝： 1,000
位數(shù)： 16
通道數(shù)： 1
電壓 - 電源，模擬： 2.7 V ~ 5.25 V
電壓 - 電源，數(shù)字： 1.7 V ~ 3.6 V
封裝/外殼： 32-TQFP
供應(yīng)商設(shè)備封裝： 32-TQFP（5x5）
包裝： 帶卷 (TR)
0
20
40
60
80
100
120
140
-
Normalized Frequency (f /f
)
IN MOD
Gain
(dB)
0.05
0.1
0
0.5
0.15
0.2
0.25
0.3
0.35
0.4
0.45
DR[0:2] = 000
DR[0:2] = 110
0
20
40
60
80
100
120
140
-
Normalized Frequency (f /f
)
IN MOD
Gain
(dB)
0.01
0
0.07
0.02
0.03
0.04
0.05
0.06
DR[0:2] = 110
DR[0:2] = 000
0
-20
-40
-60
-80
-100
-120
-140
Normalized Frequency (f /f
)
IN DR
Gain
(dB)
1
2
0
3
4
5
0.5
4.5
3.5
2.5
1.5
0
0.5
1
1.5
2
2.5
3
-
Normalized Frequency (f /f
)
IN DR
Gain
(dB)
0.05
0.1
0
0.15
0.35
0.2
0.25
0.3
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
The sinc filter has notches (or zeroes) that occur at the output data rate and multiples thereof. At these
frequencies, the filter has infinite attenuation. Figure 21 shows the frequency response of the sinc filter and
Figure 22 shows the roll-off of the sinc filter. With a step change at input, the filter takes 3 tDR to settle. After a
rising edge of the START signal, the filter takes tSETTLE time to give the first data output. The settling time of the
filters at various data rates are discussed in the START subsection of the SPI Interface section. Figure 23 and
Figure 24 show the filter transfer function until fMOD/2 and fMOD/16, respectively, at different data rates. Figure 25
shows the transfer function extended until 4 fMOD. It can be seen that the passband of the ADS1191/2 repeats
itself at every fMOD. The input R-C anti-aliasing filters in the system should be chosen such that any interference
in frequencies around multiples of fMOD are attenuated sufficiently.
Figure 21. THD vs Frequency
Figure 22. INL vs PGA Gain
Figure 23. Transfer Function of On-Chip
Figure 24. Transfer Function of On-Chip
Decimation Filters Until fMOD/2
Decimation Filters Until fMOD/16
Copyright 2011–2012, Texas Instruments Incorporated
21
Product Folder Links: ADS1191 ADS1192
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS1191IRSMR 制造商:Texas Instruments 功能描述:AFE General Purpose 1ADC 24-Bit 1.8V/3V 32-Pin VQFN EP T/R 制造商:Texas Instruments 功能描述:IC AFE 16BIT 8KSPS 1CH 32VQFN 制造商:Texas Instruments 功能描述:Low Pwr Int AFE for ECG App
ADS1191IRSMT 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Cmplt Lw Pwr Intgrtd AFE for ECG apps 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
ADS1192 制造商:TI 制造商全稱:Texas Instruments 功能描述:Low-Power, 2-Channel, 16-Bit Analog Front-End for Biopotential Measurements
ADS1192ECG-FE 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS1192 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
ADS1192IPBS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Low Pwr Integ AFE 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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