參數(shù)資料
型號(hào): ADS1191IPBSR
廠商: Texas Instruments
文件頁(yè)數(shù): 9/67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)
CM+1/2V
REF
+1/2V
REF
-
V
REF
1/2
Single-EndedInputs
t
INP
CMVoltage
CM
V
-
REF
1/2
CM+1/2V
REF
DifferentialInputs
t
INP
INN
CMVoltage
CM
1/2V
REF
-
+V
REF
-VREF
Common-ModeVoltage(DifferentialMode)=
(INP)+(INN)
2
,Common-ModeVoltage(Single-EndedMode)= INN.
INN=CMVoltage
InputRange(DifferentialMode)=(AINP
AINN)=2V
.
-
REF
Device
-
V
to
+1/2 V
1/2
REF
Common
Voltage
Single-Ended Input
Device
V
Peak-to-Peak
REF
V
Peak-to-Peak
REF
Common
Voltage
Differential Input
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
ANALOG INPUT
The analog input to the ADS1191/2 is fully differential. Assuming PGA = 1, the differential input (INP – INN) can
span between –VREF to +VREF. Refer to Table 4 for an explanation of the correlation between the analog input
and the digital codes. There are two general methods of driving the analog input of the ADS1191/2: single-ended
or differential, as shown in Figure 16 and Figure 17. Note that INP and INN are 180°C out-of-phase in the
differential input method. When the input is single-ended, the INN input is held at the common-mode voltage,
preferably at mid-supply. The INP input swings around the same common voltage and the peak-to-peak
amplitude is the (common-mode + 1/2 VREF) and the (common-mode – 1/2 VREF). When the input is differential,
the common-mode is given by (INP + INN)/2. Both the INP and INN inputs swing from (common-mode + 1/2
VREF to common-mode – 1/2 VREF). For optimal performance, it is recommended that the ADS1191/2 be used in
a differential configuration.
Figure 16. Methods of Driving the ADS1191/2: Single-Ended or Differential
Figure 17. Using the ADS1191/2 in the Single-Ended and Differential Input Modes
Copyright 2011–2012, Texas Instruments Incorporated
17
Product Folder Links: ADS1191 ADS1192
相關(guān)PDF資料
PDF描述
V375C2M50BF CONVERTER MOD DC/DC 2V 50W
MAX9015AEKA+T IC COMPARATOR SGL SOT23-8
V375C2M50BL2 CONVERTER MOD DC/DC 2V 50W
V375C2M50BL CONVERTER MOD DC/DC 2V 50W
MCP3901A0T-E/ML IC AFE 24BIT 64KSPS 2CH 20QFN
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