TIDA-00247, Single Chip 2-Wire Loop Powered, 4 to 20mA Current Loop RTD Temperature Transmitter
使用 Texas Instruments 的 MSP430F2274IRHA 的参考设计
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依据最终产品
- Outdoor Temperature Sensor
说明
- TIDA-00247, Single Chip 2-Wire Loop Powered, 4 to 20mA Current Loop RTD Temperature Transmitter. The conventional approach of using a high bridge excitation voltage and an operational amplifier to achieve a full-scale ADC input voltage increases chip count and overall power consumption. This solution utilizes the integrated ADC and operational amplifiers (OAs) of a microcontroller. In order to cut down the cost, the ADC/DAC use the main supply voltage as its reference voltage instead of including an external reference or selecting a more expensive ADC/DAC that features an internal reference. Leveraging the integrated peripherals of MCU enables low component count and low cost. This reference design is based on MSP430F2274 a mixed signal microcontroller
主要特色
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Embedded System TypeMCU
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Family NameMSP430
Featured Parts (6)
| 零件编号 | 供应商 | 类别 | 说明 | |||
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TPS7A1601DRBR | Texas Instruments | Linear Regulators | LDO Regulator Pos 1.2V to 18.5V 0.1A 8-Pin VSON EP T/R | 买入 | |
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MS3V-T1R 32.768KHZ 9.0PF 20PPM TA QC AU | Micro Crystal AG | Crystals | Crystal 0.032768MHz ±20ppm (Tol) 9pF FUND 65000Ohm 2-Pin SMD T/R | 买入 | |
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TPS7A1601DRBT | Texas Instruments | Linear Regulators | LDO Regulator Pos 1.2V to 18.5V 0.1A 8-Pin VSON EP T/R | 买入 | |
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MS3V-T1R 32.768KHZ 7.0PF 20PPM TA QC AU | Micro Crystal AG | Crystals | Crystal Resonator 0.032768MHz ±20ppm (Tol) 7pF FUND 65000Ohm 2-Pin SMD T/R | 买入 | |
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MS3V-T1R 32.768KHZ 12.5PF +/-20PPM | Micro Crystal AG | Crystals | Crystal 0.032768MHz ±20ppm (Tol) 12.5pF FUND 65000Ohm 2-Pin Mini-SMD T/R | 买入 | |
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MS3V-T1R 32.768KHZ 12.5PF 20PPM TA QC AU | Micro Crystal AG | Crystals | Crystal Resonator 0.032768MHz ±20ppm (Tol) 12.5pF FUND 65000Ohm 2-Pin SMD T/R | 买入 | |