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Analog and Digital Transducers — the Advantages of Both

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WHITE PAPER PAGE 5 TE CONNECTIVITY SENSORS /// WHITE PAPER Analog and Digital Transducers — the Advantages of Both COMPARISON OF ANALOG VS. DIGITAL SPECIFICATIONS The table below lists and compares the significant specifications and operating parameters for analog and digital M3200 transducers. Parameter Analog Digital Output Signal or Data Continuously variable voltage or current Serial digital bitstream Accuracy (pressure) ±0.25% F.S. 1 ±1.0% F.S. Accuracy (temperature) N/A 2 ±3°C Resolution (pressure) N/S 3 14 bits (±0.1% F.S.) Resolution (temperature) N/S 11 bits (±0.1°C) Total Error Band ±1.5% F.S. ±2.0% F.S. Supply Voltage 5.0 to 30 VDC 4 2.7 to 5.0 VDC Current (operating) 5 mA 3.5 mA Current (sleep mode) N/A <10 A 1. F.S. = Full Scale Output 2. N/A = Not Available 3. N/S = Not Specified 4. Range varies with P/N and output config Overall accuracy for a system using analog sensors can be affected by errors downstream of the sensor and how they are managed. In digital systems errors can appear from dither, jitter, and resolution issues. YOUR DESIGN PARAMETERS — CHOOSING THE BETTER TRANSDUCER FOR AN APPLICATION With availability in either an analog or digital version, the M3200 pressure transducer significantly expands the choices available to design engineers. While your customer design may require unique or unusual parameters, the cost and space of additional electronics to meet those parameters won't be an issue with the M3200. We offer 7,920 different standard versions of the M3200 so there's a high likelihood that one will fulfill your design engineer's requirement without any additional circuitry. Below is a table showing a list of key design requirements and the best choice to meet those needs. Design Parameters or Requirements Analog Digital Variable voltage output to system electronics X Variable current output to system electronics (4-20 mA) X Digital bitstream output in I 2 C format X High accuracy X High resolution X Low current sleep mode (battery powered applications) X Transducer or media temperature information X Very long wire connections (>5 ft or 1.5M) X Interface to wireless communication X Interface to Programmable Logic Controller (PLC) X Interface to IoT, IIoT, or M2M applications X

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