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MLX90323
4-20mA current loop sensor interface IC
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The MLX90323 is a sensor interface IC with 4-20 mA current loop output for sensors wired in bridge or differential configurations.
Sensors that can be used include thermistors, strain gauges, load cells, pressure sensors, accelerometers, etc...
The signal conditioning includes gain adjustment, offset control, high order temperature and linearity compensation. Compensation values are stored in EEPROM and are re-programmable. Programming is accomplished by using a PC, with an interface circuit (level shifting and glue logic), and provided software.
The robust electrical design allows the MLX90323 to be used where most signal conditioning and sensor interface circuits cannot be used. Voltage regulation control is provided for absolute voltage and current modes (external FET required).
The standard package is a plastic SO16W. The device is static-sensitive and requires ESD precautions.
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Features and Benefits
- Microprocessor-controlled signal conditioning for bridge-type sensors
- Suited for low-cost sensors: reduction of non-linearity by programmable coefficients External or internal temperature sensor for compensating temperature errors
- 4 to 20 mA current loop output
- Mass calibration easy with 2400 or 9600 baud UART
- Power supply from 6 to 35VDC
Assets
| DataSheet |
File Type |
Size |
Revision |
Date |
Action |
| MLX90323 |
PDF |
337.2 KB |
1 |
6/11/2008 |
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