Терраэлектроника

3-wire RTD Acquisition System Accurately Measures Temperature From -200?C - 850?C (TIPD120)

This TI Precision Verified Design provides the theory, component selection, simulation, complete PCB schematic & layout, bill of materials, and measured performance of a single-supply, 3-wire RTD acquisition system that accurately measures temperature from -200°C - 850°C. The voltage input and reference voltage are placed in a ratiometric configuration in order to reduce the errors from noise and drift and improve overall system accuracy. The ADS1247 simplifies the front-end solution by incoorporating the required current sources, programmable gain amplifier, and digitally-controlled multiplexer onto one chip. A "chopping" technique is used to minimize the effects of mismatch between the two current sources. The TPS7A4901 adjustable-output, high-PSRR LDO is suggested as a cleaner power alternative over the existing USB supply to further improve system accuracy.

Возможности

TI Precision Designs: Verified Design Contains Theory, component selection, simulation, complete PCB schematic & layout, bill of materials, and measured performance -200°C - 850°C, 3-wire RTD ratiometric measurement Single, 5V Supply Solution Utilizes ADS1247, 24-bit ΔΣ ADC Utilizes TPS7A4901 ultra-low noise LDO for precision measurements

Файлы

Схемы и диаграммы

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Тесты и симуляция

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Печатные платы и ПО

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Спецификация (BOM)

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3-wire RTD Acquisition System Accurately Measures Temperature From -200?C - 850?C TIPD120

Возможность заказа

Покупка BOM TIPD120

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Покупка печатной платы для TIPD120

Цена: 2238 r
от 3 шт. 1088 q
от 5 шт. 889 q
Срок поставки 3 недели

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