无线心电图监视仪
无线心电图(ECG)监视仪的噪声和干扰大大降低，尺寸减小到甚至可以安装在电极背面，能够提供比传统设计更精确的信号。这种电路价格便宜，且能够提供诊断质量的1导联心电图迹线。驱动腿免除了对60 Hz陷波滤波器的需求。收发器(下图所示的ADF702x)及其周围的电路将根据所用的频段而变化。所有的电路都能穿戴在衣服内，因此患者舒适度和隐私度将大大提高。
《模拟对话》杂志
- Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995)
应用笔记
- AN-915 : ADF7020, ADF7020-1, ADF7021和ADF7025的CDR操作
(pdf, 0)
- AN-915 : CDR Operation for ADF7020, ADF7020-1, ADF7021, and ADF7025
(pdf, 102 kB)
- AN-908 : Interfacing the HD44780-Based Character LCD to an ADuC702x
(pdf, 111 kB)
- AN-908 Companion Code (zip, 45 kB)
- AN-908 Companion Code (zip, 45 kB)
- AN-895 : ADuC702x MicroConverter I2C-Compatible Interface
(pdf, 237 kB)
- AN-895 Companion Code (zip, 266 kB)
- AN-895 Companion Code (zip, 266 kB)
- AN-806 : ADuC70xxBCPZxxI系列芯片I2C®下载协议
(pdf, 148 kB)
- AN-806: Companion Code, Schematic and USB Drivers (zip, 789 kB)
- AN-806: Companion Code, Schematic and USB Drivers (zip, 789 kB)
- AN-806 : I2C Download Protocol for ADuC70xxBCPZxxI Models
(pdf, 148 kB)
- AN-806: Companion Code, Schematic and USB Drivers (zip, 789 kB)
- AN-806: Companion Code, Schematic and USB Drivers (zip, 789 kB)
- AN-798 : Using the PWM to Generate Analog Output on the ADuC702x Family
(pdf, 137 kB)
The ADuC702x family integrates a 32-bit ARM7TDMI microcontroller and high precision analog blocks. Depending on the model, up to four 12-bit DACs are available. In some applications where more analog output is required, the PWM can also be used as a low resolution DAC. This application note describes how to generate an extra analog output from a PWM. - AN-765 : Measuring Duration of a Short Pulse on the ADuC702x Family
(pdf, 108 kB)
- AN-759 : 扩展ADuC8xxADuC702x系列的DAC输出数 (uC012)
(pdf, 0)
- AN-759 Companion Code (zip, 3,464 bytes) (zip, 3 kB)
- AN-759 Companion Code (zip, 3,464 bytes) (zip, 3 kB)
- AN-759 : Expanding the Number of DAC Outputs on the ADuC8xx and ADuC702x Families (uC012)
(pdf, 112 kB)
- AN-759 Companion Code (zip, 3,464 bytes) (zip, 3 kB)
- AN-759 Companion Code (zip, 3,464 bytes) (zip, 3 kB)
Ask the Experts
- Analog Devices, Inc. Application Engineering Department
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技术文章
- Biopotential Electrode Sensing in ECG, EMG, and EEG Monitors
- ECG Detects T-Wave Alternans and Late Potential Waveforms
- High Performance Electrocardiogram (ECG) Signal Conditioning
- ICs for Low Power, Low Cost ECG Holter Monitors Support Standard Medical Wireless Bands
- Low-Power, Low-Voltage IC Choices for ECG System Requirements
(Analog Dialogue, Vol. 29, No. 3, 1995) - Patient Respiration Measurement Using a 3-Axis Accelerometer