FEATURES:
● with metal shielding, anti-jamming, reserve cpu (STC15F104) position, can upgrade their own secondary development. ● two selectable differential inputs within ● programmable-chip low noise amplifier, a gain of 32, 64 and the optional 128 ● On-chip voltage regulator supplies power directly to the external sensor and on-chip A / D converter in the chip clock ● without any external oscillator device, if necessary, may also be used an external crystal or clock ● automatic power-on reset circuit ● simple digital control and serial communication: All are controlled by input pins, the chip registers without programming ● selectable 10Hz or 80Hz of the output data rate ● simultaneous rejection of 50Hz and 60Hz power interference ● power consumption (including power supply circuit): typical operating current: <1.7mA, shutdown current: <1uA ● Operating voltage range: 2.6 ~ 5.5V ● Operating temperature range: -20 ~ + 85 ℃