GENERAL DESCRIPTION
AM452 is an integrated transducer with an adjustable current output which has been specifically designed for the conditioning of differential input signals. It permits the independent adjustment of the offset and full scale current using just a few components.
FEATURES
• Instrumentation amplifier input with a wide voltage range of ±400mV
• Adjustable gain and offset
• Adjustable current output (e.g. of 0/4...20mA)
• 2- and 3-wire operation
• Suitable for HART® applications
• Protection against reverse polarity and short-circuiting
• Output signal limiting
• Integrated current source
• Adjustable integrated reference voltage source of 5 to 10V
• Modular configuration
• Supply voltage of 6...35V
• Temperature range of -40°C...+85°C
• RoHS compliant
TYPICAL APPLICATIONS
Transducers for differential input signals in current output values for:
• Transducers for sensor applications with an internal sensing element supply
• Drivers for the analog industrial power grid (e.g. remote display in current loop operation)
• Differential impedance converters
• Carrier for standard HART® protocol communications
• Modular signal conditioning with digital correction (Frame concept [1])