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FS970X
General Description
FS970X is a series of Digital Multi-function Meter (DMM) chip. The core is a high resolution ΔΣ ADC combined with function network, operational amplifiers, digital filter, crystal oscillation circuit, digital control logic, and microprocessor interface.
FS970X ADC includes not only high-resolution output to achieve accurate measurement, but high-speed ADC output to display the bar graph of digital meter and to measure +/- peak hold.
Combined with a microprocessor, FS970X can function as an auto-range DMM to measure DC/AC voltage, DC/AC current, resistance, frequency, peak hold and diode, etc. In addition, it includes several sets of programmable ADC direct input to expand product applicability.
Feature
| • | Built-in high resolution GU ADC | | • | Good CMRR at 50/60 Hz | | • | Low battery detection | | • | Built-in crystal oscillation circuit | | • | Operation current is less than 1.2mA | | • | Standby saving mode current is less than 10uA | | • | 2.5kHz beeper driver | | • | 5,000 counts, high-resolution low-speed input, 5 times / sec. | | • | 500 counts, low resolution, high-speed input, 640 times / sec. | | • | Standard 4-bit parallel interface to directly connect to microprocessor ports | | • | 4 programmable ADC direct input channel | | • | Package: 64-pin LQFP |
Application
| • | Digital Multi-function Meter |
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