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XR10910

MaxLinear
Part Number XR10910
Manufacturer MaxLinear
Description 16:1 Sensor Interface AFE
Published Sep 1, 2018
Detailed Description XR10910 16:1 Sensor Interface AFE General Description The XR10910 is a unique sensor interface integrated circuit with ...
Datasheet PDF File XR10910 PDF File

XR10910
XR10910


Overview
XR10910 16:1 Sensor Interface AFE General Description The XR10910 is a unique sensor interface integrated circuit with an on-board 16:1 multiplexer, offset correction DAC, instrumentation amplifier and voltage reference.
The XR10910 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 XR10910’s many functions such as input and gain selection.
An integrated LDO provides a regulated voltage to power the input bridge sensors and is selectable, between 3V and 2.
65V, via the serial interface for lower voltage compatibility.
The LDO current can be sensed and a proportional voltage present at the output of the IC for monitoring the LDO current.
The XR10910 offers 8 fixed gain settings (from 2V/V to 760V/V), each with an error of only ±0.
5%, that are selectable via the I2C interface.
It also offers less than 1mV maximum input offset voltage, 100pA maximum input bias current, and 100pA maximum input offset current.
The XR10910 is designed to operate from 2.
7V to 5V supplies and is specified over the industrial temperature range of -40°C to +85°C.
It is offered in a space saving 6mm x 6mm QFN-40 package.
It consumes less than 556μA maximum supply current and offers a sleep mode for added power savings.
The low power, low input bias current and integrated features make the XR10910 well suited for both industrial and consumer applications using bridge sensors.
F E AT U R E S ■■ Integrated features for interfacing multiple bridge sensors with an MCU or FPGA: 16:1 differential mux with I2C interface Instrumentation amplifier LDO Offset correction DAC with I2C interface (±560mV offset correction range - RTI) ■■ Eight sele...


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