The MLX90269 Absolute Integrated Pressure Sensor is programmable, with adjustable offset and sensitivity. It provides an output proportional to the applied pressure and is available in different pressure ranges.
The MLX90269 combines a pressure‑sensing element and on‑chip signal conditioning in a single CMOS die. It provides a ratiometric, rail‑to‑rail output that can be programmed via a three‑pin connector, with diagnostics for broken wires and sensor membrane.
The device supports multiple pressure ranges (1.2 – 7 Bar full‑scale), operates from –40 °C to 150 °C, and includes a programmable calibration procedure (PTC) and memory lock feature for secure programming.
| Supply Voltage (Vdd) range | -14 V to 16 V |
|---|---|
| Output Voltage range | -0.5 V to 16 V |
| Storage Temperature Range | -55 °C to 165 °C |
| Supply Current (typical) | 6 mA |
| Output Current Capability | 3 mA |
| Zero‑pressure output voltage | 0.5 V (typical) |
| Full‑scale pressure output voltage | 4.5 V (typical) |
| Response Time (to 1 % error) | 2 ms |
Programming is performed through the three‑pin connector (Vdd, Vss, Out) using pulse‑width‑modulated data on the OUT pin.
Only three pins are required: Vdd, Vss, and Out.
The output is forced to ground (or a very low level) as a diagnostic indication.