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XR18910 - 8:1 Sensor Interface Analog Front End

General Description

The XR18910 is a unique sensor interface integrated circuit with an onboard 8:1 multiplexer, offset correction Digital-to-Analog Converter (DAC), instrumentation amplifier and voltage reference.

Key Features

  • Integrated features for interfacing multiple bridge sensors with an MCU or FPGA 8:1 differential MUX with I2C interface Instrumentation amplifier LDO Offset correction DAC with I2C interface (±560mV offset correction range).
  • Eight selectable voltage gains from 2V/V to 760V/V with only ±0.5% gain error.
  • 3mV maximum input offset voltage.
  • 100pA maximum input bias current.
  • 559μA maximum supply current.
  • 2.7V to 5V analog supply voltage rang.

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Datasheet Details

Part number XR18910
Manufacturer MaxLinear
File Size 706.99 KB
Description 8:1 Sensor Interface Analog Front End
Datasheet download datasheet XR18910 Datasheet

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XR18910 8:1 Sensor Interface Analog Front End Description The XR18910 is a unique sensor interface integrated circuit with an onboard 8:1 multiplexer, offset correction Digital-to-Analog Converter (DAC), instrumentation amplifier and voltage reference. The XR18910 is designed to integrate multiple bridge sensors with a Microcontroller (MCU) or Field-Programmable Gate Array (FPGA). The integrated offset correction DAC provides digital calibration of the variable and in many cases substantial offset voltage generated by the bridge sensors. The DAC is controlled by an I2C compatible 2-wire serial interface. The serial interface also provides the user with easy controls to the XR18910’s many functions such as input and gain selection.