The MAX40109 is a low-power, precision sensor interface SoC that includes a high-precision, programmable Analog frontend (AFE), Analog-to-Digital Converter (ADC), calibration memory, and digital signal processing. It also includes a Digital-to-Analog Converter (DAC) with an output buffer to support analog voltage output and a 4mA–20mA current loop.
Traditional pressure sensor manufacturers need two-step calibrations to correct nonlinear output, while the MAX40109 revolutionizes this process through single-flow calibration, which can reduce one-time factory calibration and test time by more than 30%, effectively reducing overall system complexity and calibration costs. Compared with traditional solutions, this process eliminates the need for up to 10 laser trimming resistors, while leveraging internal integrated DSP for nonlinear compensation. The MAX40109 provides integrated temperature measurement directly from the resistive bridge, eliminating the need for an external thermistor, which cab reduce overall solution size by more than 70%.