参考设计
(10)
Data Acquisition Block for ECG Systems, discrete LEAD I ECG implementation Reference Design
TIPD116: This TI Verified Design is for Electrocardiography (ECG), the measurement of the electrical activity of the heart, a method that requires a precision analog front end instrumentation gain stage, filtering, and high resolution digital conversion. This design features the methodology for achieving a LEAD I ECG measurement system designed from discrete analog components. Ultra low power is optimized by an instrumentation front end using an OPA2333 and is digitized by the 18 bit ADS8881. See more TI Precision Designs
TIPD113 Data Acquisition for 10kHz AC, 35mW, 18 bit, 1Msps Reference Design | TI.com
TIPD113: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest power solution for a full scale input sine wave of 10 KHz. At a total power consumption of less than 35mW, this design has been optimized to achieve an effective resolution greater than 16 bits. The input driver for the ADC uses the OPA320 for low power, low noise and linear rail-to-rail input and output operation. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. See more TI Precision Designs
TIPD116 Data Acquisition Block for ECG Systems, discrete LEAD I ECG implementation Reference Design | TI.com
TIPD116: This TI Verified Design is for Electrocardiography (ECG), the measurement of the electrical activity of the heart, a method that requires a precision analog front end instrumentation gain stage, filtering, and high resolution digital conversion. This design features the methodology for achieving a LEAD I ECG measurement system designed from discrete analog components. Ultra low power is optimized by an instrumentation front end using an OPA2333 and is digitized by the 18 bit ADS8881. See more TI Precision Designs
Data Acquisition for 10kHz AC, 35mW, 18 bit, 1Msps Reference Design
TIPD113: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest power solution for a full scale input sine wave of 10 KHz. At a total power consumption of less than 35mW, this design has been optimized to achieve an effective resolution greater than 16 bits. The input driver for the ADC uses the OPA320 for low power, low noise and linear rail-to-rail input and output operation. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. See more TI Precision Designs
Data Acquisition Optimized for Lowest Distortion, Lowest Noise, 18 bit, 1Msps Reference Design
TIPD115: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest noise & distortion solution for a full scale input sinewave of 10 KHz. This leads to a maximum possible value for Effective Number of Bits (ENOB) at a total power consumption of less than 50mW. The input driver for the ADC uses the fully-differential THS4521 for extremely low distortion, noise and high small signal bandwidth. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. See more TI Precision Designs
TIPD115 Data Acquisition Optimized for Lowest Distortion, Lowest Noise, 18 bit, 1Msps Reference Design | TI.com
TIPD115: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide the lowest noise & distortion solution for a full scale input sinewave of 10 KHz. This leads to a maximum possible value for Effective Number of Bits (ENOB) at a total power consumption of less than 50mW. The input driver for the ADC uses the fully-differential THS4521 for extremely low distortion, noise and high small signal bandwidth. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. See more TI Precision Designs
Data Acquisition for MUX and Step Inputs, 18 bits, 1uS Full Scale Response Reference Design
TIPD112: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide 18-bit settling performance for a Full Scale Step Input signal, thus leading to excellent system linearity. Such an input stimulus is more applicable in MUXed applications for transition between channels with different input voltages. The input driver for the ADC uses the OPA350 for high bandwidth (small & large signal), output current drive and linear rail-to-rail input and output operation. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. This DAQ block achieves a ±2.5LSB INL performance for a total power consumption of less than 70mW. See more TI Precision Designs
TIPD114 Data Acquisition at 1KHz AC, 1mW, 18bit, 1Msps Reference Design | TI.com
TIPD114: This TI Verified Design provides results of a low power, low throughput use case of ADS8881. One of the ways to reduce power for a low throughput application is to select a high throughput (1 MSPS) part and run it at low speed. The power consumed by ADS8881 is 55uW for 10kSPS. The reference drive and the input drive needs to be optimized for low power too. This design covers the various tradeoff's that need to be made and the choices to pick from, in order to bring the overall system power down to 1mW. See more TI Precision Designs
TIPD112 Data Acquisition for MUX and Step Inputs, 18 bits, 1uS Full Scale Response Reference Design | TI.com
TIPD112: This TI Verified Design is a high performance data acquisition system (DAQ) using an 18-bit SAR ADC, ADS8881 at a throughput of 1MSPS. This design has been optimized to provide 18-bit settling performance for a Full Scale Step Input signal, thus leading to excellent system linearity. Such an input stimulus is more applicable in MUXed applications for transition between channels with different input voltages. The input driver for the ADC uses the OPA350 for high bandwidth (small & large signal), output current drive and linear rail-to-rail input and output operation. The reference buffer drive utilizes a composite buffer made out of THS4281 & OPA333 to get the desired performance at lowest power consumption. This DAQ block achieves a ±2.5LSB INL performance for a total power consumption of less than 70mW. See more TI Precision Designs
Data Acquisition at 1KHz AC, 1mW, 18bit, 1Msps Reference Design
TIPD114: This TI Verified Design provides results of a low power, low throughput use case of ADS8881. One of the ways to reduce power for a low throughput application is to select a high throughput (1 MSPS) part and run it at low speed. The power consumed by ADS8881 is 55uW for 10kSPS. The reference drive and the input drive needs to be optimized for low power too. This design covers the various tradeoff's that need to be made and the choices to pick from, in order to bring the overall system power down to 1mW. See more TI Precision Designs
