• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The XTR108 is a "smart", programmable, 4-20mA, two-wire transmitter designed for temperature and bridge sensors. Zero, span, and linearization errors in the analog signal path can be calibrated via a standard digital serial interface, eliminating manual trimming. Non-volatile ex-ternal EEPROM stores calibration settings.

The all-analog signal path contains an input multiplexer, autozeroed programmable-gain instrumentation amplifier, dual programmable current sources, linearization circuit, voltage reference, sub-regulator, internal oscillator, control logic, and an output current amplifier. Programmable level shifting compensates for sensor DC offsets. Selectable up- and down-scale output indicates out-of-range and burn-out per NAMUR NE43.

特性

• COMPLETE TRANSMITTER +RTD LINEARIZATION
• TWO-WIRE, 4-20mA OUTPUT
• VOLTAGE OUTPUT (0.5V to 4.5V)
• ELIMINATES POTENTIOMETERS AND TRIMMING
• DIGITALLY CALIBRATED
• 5V SUB-REGULATOR OUTPUT
• SERIAL SPI™ BUS INTERFACE
• SSOP-24 PACKAGE
• APPLICATIONS
  • REMOTE RTD TRANSMITTERS
  • PRESSURE BRIDGE TRANSMITTERS
  • STRAIN GAGE TRANSMITTERS
  • SCADA REMOTE DATA ACQUISITION
  • WEIGHING SYSTEMS
  • INDUSTRIAL PROCESS CONTROL

SPI is a trademark of Motorola, Inc. All other trademarks are the property of their respective owners.