The MAX1452ATG+ from Maxim Integrated Products is a low cost precision sensor signal conditioner in 24 pin TQFN package. It is highly integrated analogue sensor signal processor optimized for industrial and process control applications utilizing resistive element sensors. The MAX1452 provides amplification, calibration and temperature compensation that enables an overall performance approaching the inherent repeatability of the sensor. Offset and span are calibrated using 16bit DACs allowing sensor products to be truly interchangeable. Architecture includes a programmable sensor excitation, a 16-step programmable-gain amplifier (PGA), a 768-byte (6144 bits) internal EEPROM, four 16-bit DACs, an uncommitted op amp and an on-chip temperature sensor. Typically applications include pressure sensors, transducers and transmitters, strain gauges, pressure calibrators and controllers, resistive elements sensors, accelerometers and humidity sensors.
● Supply voltage and EEPROM supply voltage range from 4.5V to 5.5V
● Operating temperature range from -40°C to +125°C
● 4 to 20mA, 0 to 5V (rail to rail), 0.5V to 4.5V ratiometric and +2.5V to ±2.5V outputs supported
● Single chip, integrated analogue signal path reduces design time and saves space
● Fully analogue signal path, single pin digital programming, no external trim components required
● 16bit offset and span calibration resolution, fast 150µs step response
● On-chip lookup supports multipoint calibration temperature correction improving system performance
● Secure-Lock™ prevents data corruption
● Low 2mA current consumption simplifies power supply design in 4 to 20mA applications
● Provides amplification, calibration and temperature compensation
