The MLX90308 is a dedicated microcontroller that performs signal conditioning 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 application circuits can provide an output of an absolute voltage, relative voltage, or current. The output can be range limited with de-
The MLX90308 is a microcontroller‑based signal‑conditioning device for bridge‑type sensors such as pressure transducers, accelerometers and temperature sensor assemblies. It offers programmable gain, offset, temperature compensation and multiple output ranges (voltage or 4‑20 mA).
The document provides detailed electrical specifications, pin descriptions, programming procedures via UART (2400/9600 baud), customization options, and reliability information, making it a comprehensive guide for designers and technicians.
| Supply current (Current Mode) | 2.1 mA |
|---|---|
| Regulated supply voltage (Vrec) typical | 4.75 V |
| Output current (Current mode) | 27 mA |
| UART baud rate options | 2400 baud, 9600 baud |
It can output 4 V, 5 V, 10 V, 11 V, or a 4‑20 mA current loop.
Pins 1 and 2 are bi‑directional I/O that can serve as analog inputs to the A/D converter or as digital outputs/alarms.