333 kS/s, 16-Bit, 2-Channel PXI Strain/Bridge Input Module—The NI PXI‑4220 is a full-featured input module for quarter‑, half‑, and full‑bridge sensors, such as strain gages, load cells, and pressure sensors. Bridge configuration, excitation, amplification, and filtering are fully programmable per channel. In addition, the PXI‑4220 provides simultaneous‑sample‑and‑hold capability to eliminate phase delay between channels. Each input channel of the module includes a 9‑pin D‑SUB connector for easy connection to bridge sensors and programmable shunt and null calibration circuitry to improve measurement accuracy by eliminating gain and offset errors.