MLX90320

MLX90320 Automotive Sensor Interface 1. Features and Benefits  Suited cost optimized sensors: gain and offset correction by programmable coefficients  Higher order temperature compensation provided for both gain and offset  External or internal temperature sensor for compensation of temperature errors  Over-voltage protection  Fault detection and clamping levels  Ratio-metric output: 0 to 5V  Single Pin Digital Programming  Fully analog signal path  RoHS compliant 2. Application Examples  Pressure transducers, strain gauges, accelerometers, position sensors, etc.  Steering systems (e.g. torque sensors)  Safety restraints systems (e.g. seat occupant detection)  Braking systems (e.g. ABS, force)  Comfort systems (e.g. air conditioning)  Engine management (e.g. injection)  Any bridge type sensor 3. Ordering information Product Code MLX90320 MLX90320 Temperature Code L L Package Code FR FR Option Code BBA-000 BBA-000 Packing Form Code RE TU Legend: Temperature Code: Package Code: Packing Form: Ordering example: L for Temperature Range -40°C to 150°C FR for SSOP 209 mil RE for Reel, TU for Tube MLX90320LFR-BBA-000-RE 4. Functional Diagram INM INP TMP VDD 7bits CSOF DAC Optional clamping levels and fault detections Over- & Reverse Voltage Protection POR Ratiometric Chopping Chopping + Gdido - Gdts Gcs Oscillator: 4 MHz (+/15%) -> 250kHz dig VDD IINV VDD 10bits DAC 12 TMP Select Fine Offset = Oo + O1.(T-T1) + O2.(T-T1)² TMP Offset TMP G...