ZMD31010 and ZMD31050 sensor signal conditioners provide digital compensation of sensor offset, sensitivity, temperature compensation, and linearization. The devices, which require no external trimming components, offer PC-controlled configuration and calibration, and accuracy of ۪.1 percent SFO from -25° to +85°C. Suitable for battery-powered applications with small SPP8 packages, the ZMD31010 is said to provide quick and precise pass calibration. This device offers output options of ratiometric analog voltage, absolute analog voltage, or one-wire interface. The ZMD31050 interfaces to a PC via a digital bus interface and is housed in either an SSOP16 or die package. The ZMD31050 provides output outputs of 0 to 5 V, 5 to 20 mA, PWM 12C SPI, or one-wire interface. An evaluation kit, which includes a calibration board, sensor signal conditioning samples, software, and technical documentation, is available for both models. Suitable applications include industrial process control, data loggers, filter and refrigerant monitoring in appliances, PDAs, mobile phones, and wristwatches. These sensor signal conditioners are also ideal for medical applications, such as blood pressure meters and sleep apnea monitors. The ZMD31010 is priced under $2.75 in quantities of more than 1,000 pieces. The ZMD3150 is priced under $6.50 in quantities of more than 1,000 pieces.
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