參數(shù)資料
型號(hào)： ADS1191IPBSR
廠商： Texas Instruments
文件頁(yè)數(shù)： 25/67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)
START
DRDY
CS
SCLK
DIN
DOUT
Device 2
START
DRDY
CS
SCLK
DIN
DOUT
Device 1
START
(1)
CLK
INT
GPO0
GPO1
SCLK
MOSI
Host Processor
MISO
CLK
START
1
Device
1
CLK
DRDY
1
START
CLK
START
2
Device
2
CLK
DRDY
2
START
CLK
DRDY
1
DRDY
2
Note 1
Note 2
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
When using multiple devices, the devices can be synchronized with the START signal. The delay from START to
the DRDY signal is fixed for a fixed data rate (see the START subsection of the SPI Interface section for more
details on the settling times). Figure 36 shows the behavior of two devices when synchronized with the START
signal.
(1) Start pulse must be at least one tMOD cycle wide.
(2) Settling time number uncertainty is one tMOD cycle.
Figure 36. Synchronizing Multiple Converters
Standard Mode
Figure 37 shows a configuration with two devices cascaded together. One of the devices is an ADS1192 (two-
channel) and the other is an ADS1192 (two-channel). Together, they create a system with four channels. DOUT,
SCLK, and DIN are shared. Each device has its own chip select. When a device is not selected by the
corresponding CS being driven to logic 1, the DOUT of this device is high-impedance. This structure allows the
other device to take control of the DOUT bus.
Figure 37. Multiple Device Configurations
Copyright 2011–2012, Texas Instruments Incorporated
31
Product Folder Links: ADS1191 ADS1192
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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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