血压计
Blood pressure is measured using different methods. One method is to measure overall cuff pressure and amplitude of oscillations. As the pressure in the cuff is reduced, small oscillations in pressure are measured due to blood flow through the arm changing in volume. This system requires only one sensor to measure pressure. This is accomplished using a gain block followed by active filters and precision ADCs controlled by a processor.
应用笔记
- AN-929 : Tuning the AD714x for CapTouch® Applications
(pdf, 618 kB)
- AN-874 : 在±5V电源下使用ADG12xx系列器件及其性能影响
(pdf, 206 kB)
- AN-874 : Operating the ADG12xx Series of Parts with 5 V Supplies and the Impact on Performance
(pdf, 206 kB)
- AN-793 : ESD/Latch-Up Considerations with iCoupler® Isolation Products
(pdf, 246 kB)
- AN-766 : Using the Noise Reduction Feature on the AD7877
(pdf, 409 kB)
- AN-753 : Configuring the AD7877
(pdf, 247 kB)
- AN-740 : iCoupler® Isolation in RS-232 Applications
(pdf, 716 kB)
- AN-726 : Triple-Supply Power-Good Indication with the ADM108x
(pdf, 75 kB)
- AN-724 : ADuC702x Serial Download Protocol
(pdf, 141 kB)
- AN-594 : Modifying the Input Voltage Range of the AD7663, AD7665 or AD7671 PulSAR 16-Bit ADCs
(pdf, 141 kB)
These ADCs handle other input voltage ranges not described in the data sheet.- PulSAR® Input Range Software (zip, 13056 kB)
(zip, 13,369,673 bytes)
- PulSAR® Input Range Software (zip, 13056 kB)
- AN-588 : AD7416/AD7417/AD7418 Power-On Reset Circuit
(pdf, 29 kB)
If a large number of decoupling capacitors are used on the VDD line, re-applying power before VDD has discharged to 0 V can cause the AD7416/AD7417/AD7418 to reset into an unknown. state. - AN-577 : Layout and Grounding Recommendations for Touch Screen Digitizers
(pdf, 52 kB)
- AN-573 : OP07 Is Still Evolving
(pdf, 155 kB)
- AN-561 : AD7416 Connects to the PIC16F84 via Emulated I²C™ Interface
(pdf, 74 kB)
- AN-138 : SPICE-Compatible Op Amp Macro-Models
(pdf, 838 kB)
- AN-117 : OP-42 Advanced SPICE Macro-Model
(pdf, 168 kB)
Ask the Experts
- Analog Devices, Inc. Application Engineering Department
For technical support and additional information, please contact our experienced applications engineers who are readily available to assist you.
Thank you.
技术文章
- Analog Devices Introduces Digital Imaging Converters Optimized for Professional Applications
... 12-bit CMOS and CCD analog front-end solutions improve image quality for scientific and industrial imaging applications. (ChipCenter Product Review) - Circuit Suggestions Using Features and Functionality of New Sigma-Delta ADCs
- Oscillometric Blood Pressure Measurement