Power Operates directly from a 3.0V battery Supply Range: 1.8V to 3.6V (max)
Power Consumption
MCU Active Mode: Core consumes 290μA / MHz
Active Mode: 1.0mA (All peripherals active), core operating at 500KHz
Power down mode: 4μA (WU Timer Active)
On-Chip Peripherals
UART, I2C and 2 x SPI Serial I/O
16-bit PWM Controller
19-Pin Multi-Function GPIO Port
2 General Purpose Timers
Wake-up Timer/Watchdog Timer
Multi-Channel DMA and Interrupt Controller
Package and Temperature Range
48 lead LFCSP (7mm x 7mm) package –40℃ to 125℃
Development Tools
Low-Cost QuickStart™Development System
Third-Party Compiler and emulator tool Support
Multiple Functional Safety features for improved diagnostics
ADuCM360主要应用:
Industrial automation and process control
Intelligent, precision sensing systems
4 mA to 20 mA loop-powered smart sensor systems
Medical devices, patient monitoring
图1.ADuCM360方框图
采用ADuCM360精密模拟微控制器和外接热电偶的基于USB温度监测器
This circuit uses the ADuCM360/ADuCM361 precision analog microcontroller in an accurate thermocouple temperature monitoring application. The ADuCM360/ADuCM361 integrates dual 24-bit sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), dual programmable current sources, a 12-bit digital-to-analog converter (DAC), and a 1.2 V internal reference, as well as an ARM Cortex-M3 core, 126 kB flash, 8 kB SRAM, and various digital peripherals such as UART, timers, SPIs, and I2C interfaces. In the circuit, the ADuCM360/ADuCM361 is connected to a thermocouple and a 100 Ω platinum resistance temperature detector (RTD). The RTD is used for cold junction compensation. In the source code, an ADC sampling rate of 4 Hz is chosen. When the ADC input programmable gain amplifier (PGA) is configured for a gain of 32, the noise-free code resolution of the ADuCM360/ ADuCM361 is greater than 18 bits.
图2.EVAL-ADuCM360TCZ板外形图
图3.采用ADuCM360的温度监测器简化电路图
图4.EVAL-ADuCM360TCZ电路图(1)
图5.EVAL-ADuCM360TCZ电路图(2)
图6.EVAL-ADuCM360TCZ电路图(3)
图7.EVAL-ADuCM360TCZ PCB布局图(顶层)
图8.EVAL-ADuCM360TCZ PCB布局图(底层)
EVAL-ADuCM360TCZ材料清单见:
详情请见:
http://www.analog.com/static/imported-files/data_sheets/ADuCM360_361.pdf
和
http://www.analog.com/static/imported-files/circuit_notes/CN0221.pdf
为便携设备供电的创新型双输出LDO电源解决方案性能提高效率的措施包括同步整流、采用脉频调制PFM模式、最大限度降低RDSon功耗和先进的内部启用/禁用策略。同步整流用于降低二极管D前向电压而产生的功耗（见图1），在二次循环期间，NMOS晶体管短接 关于L6599 过流电路这是个L6599的过流电路，通过一个电容采样，我像问下，我标注的那两个RC是起到什么作用的。 QQ截图20201016160437.png(45.18 KB, 下载次数: 0)下载 电容电压单元如何进行飞法电容测量？半导体电容一般是皮法 （pF） 级或纳法（nF） 级。许多商用 LCR 或电容表可以使用适当的测量技术测量这些值，包括补偿技术。但是，某些应用要求飞法 （fF） 或 1e-15 级的非常灵敏的电容测
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