Mobile power integrated tester can use ADC GX7683, compatible with AD7683

The rapid development of electronic products has led to the creation of mobile power, which has been used in many fields as an energy storage device. The mobile power supply has a built-in circuit board, whose main role is to protect the mobile power supply from over-charging, over-discharging, over-current protection, as well as charging management and discharging management. Therefore, the mobile power integrated tester is produced in this environment, it is mainly for the circuit board for charging current test, overcharge/overdischarge protection test and overcurrent protection test, etc., can quickly and accurately measure the above parameters.

Mobile power integrated tester can be divided into four modules: main control system, analog battery module, electronic load module, and analog DC power supply module. Electronic load is generally a DC electronic load, with good output accuracy, good output stability and output with controllability and other advantages, is widely used in the battery into the chemical equipment testing, aging of electronic components, power supply product testing and so on.

As ARM receives digital signals, analog signals to be sent to ARM must go through the analog-to-digital conversion circuit, so the digital-to-analog converter can be used 16-bit 100kSPS single-channel GX7683 (compatible with AD7683), ultra-low-power and small size makes the GX7683 become the ideal choice for portable and battery-operated systems.

The GX7683 has a reliable specification over the 2.7V to 5.25V supply range. It requires very little power, even when operating at 100kHz data rates. At lower data rates, the device‘s high speed allows it to spend most of its time in power-down mode, consuming less than 100mw of power on average at 10kHz data rates.The GX7683 also features operation from 2V to 5.25V, a synchronous serial (SPI/SSI compatible) interface, and differential inputs. The reference voltage can be set to any level in the range of 500mV to VCC.