XR18910ILMTR-67 Datasheet PDF - Exar Corporation

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).

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 range
■ 1.8V to 5V digital supply voltage range
■ -40°C to 85°C temperature range
■ 3.5mm x 3.5mm QFN-24 package

APPLICATIONS
■ Bridge sensor interface
■ Pressure and temperature sensors
■ Strain gauge amplifier
■ Industrial process controls
■ Weigh scales