Digital precision pressure tester circuit integrated precision pressure signal conditioner MAX1457


Posted on Dec 11, 2010

Digital precision pressure tester circuit shown in Fig. MAX1457 external ROM selection 93C66 type 4096b E2PROM. After power MCS end is pulled to a high level, check the main ch


Digital precision pressure tester circuit integrated precision pressure signal conditioner MAX1457
Click here to download the full size of the above Circuit.

ip. + 5V power supply through a resistor RBIAS (400k ) provide appropriate bias voltage to the bias circuit. C2, C4 and C6 are decoupling capacitors. C1, C3, C5, C7 ~ C11 are bypass capacitors. When taking RISRC 50k, excitation current 0.5mA. RSTC full scale temperature coefficient compensation resistor, R * LIN non-linear calibration resistor (can not). Pressure signal generated by the sensor after MAX1457 processing output from OUT terminal to the digital voltmeter (DVM), shows the measured pressure values.




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