XR10910 and XR18910 16:1 and 8:1 Sensor Interface AFEs Simplify Sensor Conditioning
The XR10910 and XR18910are highly integrated sensor interface Analog Front Ends (AFEs) that provide calibration and signal conditioning of analog sensor outputs. The XR10910/XR18910 offer onboard 16:1/8:1 differential multiplexer, offset correction DAC, programmable gain instrumentation amplifier and voltage reference. These devices provide 14-bit signal path linearity and are designed to connect multiple bridge sensors to a Microcontroller (MCU) or Field Programmable Gate Array (FPGA) with an embedded ADC.
These devices integrate a host of features to simplify sensor conditioning applications. The integrated DAC provides offset calibration for any offset voltage generated by the sensors, improving overall system sensitivity and accuracy. An independent offset value can be set for each differential input. Both AFEs offer eight, I²C selectable, fixed-gain settings from 2V/V to 760V/V to ensure the amplified sensor signal falls within the optimum input range of the downstream ADC. The integrated LDO provides a regulated voltage to power the sensors and is selectable between 3V and 2.65V for lower voltage compatibility. An I²C interface provides an easy way to control the many functions of the XR10910 and XR18910.
The XR10910 and XR18910 integrate high channel count and functionality in a tiny footprint and are lower power than competing devices. They fill the gap between less feature rich discrete solutions and single-chip sensor interface devices that include their own processing capability. Their unique feature set makes them well suited for industrial applications using multiple analog sensors.
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[ Bridge sensor interface ][ Pressure and temperature sensor interface ][ Strain gauge amplifier ][ Industrial ][ Weigh scale ] |
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Please see the document for details |
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QFN |
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English Chinese Chinese and English Japanese |
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2017/12/26 |
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459 KB |
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