參數(shù)資料
型號： ADS1191IPBSR
廠商： Texas Instruments
文件頁數(shù)： 5/67頁
文件大?。?/td> 0K
描述： IC AFE 16BIT 8KSPS 1CH 32TQFP
標準包裝： 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
供應商設備封裝： 32-TQFP（5x5）
包裝： 帶卷 (TR)
DRDY
CLK
CLKSEL
Oscillator
Power-Supply Signal
SPI
DVDD
DGND
RLD
INV
RLD
OUT
(AVDD + AVSS)/2
Lead-Off Excitation Source
GPIO1/
RCLK
GPIO2/
RCLK
RESP
CS
SCLK
DIN
DOUT
RLDIN/
RLDREF
Temperature Sensor Input
RLD
Amplifier
Reference
Control
START
PWDN/
RESET
AVDD
AVSS
Test Signal
MUX
PGA1
ADC1
PG A2
IN1P
IN1N
EMI
Filter
ADC2
IN2P
IN2N
EMI
Filter
PGA2N
PGA2P
PGA1P
PGA1N
VREFP
VREFN
VCAP2
VCAP1
V
SBAS566A – DECEMBER 2011 – REVISED SEPTEMBER 2012
OVERVIEW
The ADS1191/2 are low-power, multichannel, simultaneously-sampling, 16-bit delta-sigma (
ΔΣ) analog-to-digital
converters (ADCs) with integrated programmable gain amplifiers (PGAs). These devices integrate various ECG-
specific functions that make them well-suited for scalable electrocardiogram (ECG), sports, and fitness
applications. The devices can also be used in high-performance, multichannel data acquisition systems by
powering down the ECG-specific circuitry.
The ADS1191/2 have a highly programmable multiplexer that allows for temperature, supply, input short, and
RLD measurements. Additionally, the multiplexer allows any of the input electrodes to be programmed as the
patient reference drive. The PGA gain can be chosen from one of seven settings (1, 2, 3, 4, 6, 8, and 12). The
ADCs in the device offer data rates from 125 SPS to 8 kSPS. Communication to the device is accomplished
using an SPI-compatible interface. The device provides two general-purpose I/O (GPIO) pins for general use.
Multiple devices can be synchronized using the START pin.
The internal reference can be programmed to either 2.42 V or 4.033 V. The internal oscillator generates a 512-
kHz clock. The versatile right leg drive (RLD) block allows the user to choose the average of any combination of
electrodes to generate the patient drive signal. Lead-off detection can be accomplished either by using an
external pull-up/pull-down resistor or the device internal current source/sink. An internal ac lead-off detection
feature is also available. A detailed diagram of the ADS1191/2 is shown in Figure 13.
Figure 13. Functional Block Diagram
Copyright 2011–2012, Texas Instruments Incorporated
13
Product Folder Links: ADS1191 ADS1192
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相關代理商/技術參數(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 結構: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 結構: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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