2,400 Counts Auto Range DMM IC

FS9721B is a high performance, low power consumption, 3 digits (2400 Counts) Analog/Digital Converter (ADC+MCU) that is embedded Microprocessor It contains 8 bit Microprocessor low noise and high stability operation Amplifier AC conmutation operation Amplifier voltage promotion and voltage regulated power source, high stability bandgap, auto measurement Switch and function control circuit, buzzer driver circuit, Clock Oscillator circuit, Backlight Display control circuit, LCD Display driver circuit and so on. Due to FS9721B is embedded Microprocessor so that it CAN control the Logic function during passing I/O. Measurement functions CAN be combined differently by using MEA1MEA4 pins code; through the setting to the code CAN build the fully auto measurement meter. There are Range, Select, Hold/BLCTR, Rel, Hz/Duty, RS232 and Reset keys so that you CAN fulfil measurement selection, functions Switch data hold, Backlight Display relative value, frequency and duty cycle measurement, data transmission, reset and so on functions through these keys. FS9721B has series data output function. User CAN connect the meter to computer to record, analysis, process and print the measured data. With regard to the auto power off function, when there is no action within 30 minutes on the Switch or keys of the meter, the system will enter the sleep mode automatically to save the power. In the process of using the meter, if it is not necessary to power off automatically, the function CAN also be cancelled in use. FS9721B is manufacted by large intergrated circuit technology that has rised hugely the reliability of product and made the design be easy and the volume be small; the system takes low power voltage so as to be low power consumption and is convenient to use the power supply of battery, especially is proper for the use on the palm mode meter. FS9721B is a multi-measurement AC/DC converter that embedded the Microprocessor Only less addition of external components, you CAN constitute a high accuracy, mult-function and low cost meter. By Fortune Semiconductor Corporation
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FS9721B Application circuits
FS9721B circuits
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