MAX11646 / MAX11647 low power consumption, 10-bit, 1/2 pass

MAX11646 / MAX11647 low power consumption, 10-bit, 1/2 channel analog-to-digital converter (ADC) with internal sampling / hold (T / H) circuit, voltage reference, clock, and I2C compatible 2-wire serial interface. These two devices are powered by 2.7V to 3.6V (MAX11647) or 4.5V to 5.5V (MAX11646) single power supply, which consumes only 670μA current at maximum 94.4kSPS sample rate. When the sample rate is less than 40 kSPS, the power supply is reduced to 230 μA. The AutoShutdownTM function degrades the power supply to 1 μA below the conversion intermittent offset device. MAX11646 / MAX11647 can measure 2 single-ended or 1 way difference input. Full differential analog inputs can be configured as unipolar or bipolarity, as well as single-ended or differential operating modes. The full-scale analog input range is determined by the internal reference or external 1V to VDD reference voltage. The MAX11647 has a 2.048V internal reference, and the MAX11646 has a 4.096V internal reference. The MAX11646 / MAX11647 uses an 8-pin μmax® package, operating in the extended temperature range (-40 ° C to + 85 ° C). For a 12-bit version of the pin-compatible, please refer to the MAX11644 / MAX11645 data. Key feature High speed I2C compatible serial interface 400kHz fast mode 1.7MHz high speed mode Single power supply 2.7V to 3.6V (MAX11647) 4.5V to 5.5V (MAX11646) Internal baseline 2.048V (MAX11647) 4.096V (MAX11646) External benchmark: 1V to VDD Internal clock 2-way single-ended or 1-way full difference Internal FIFO with channel scan mode Low power consumption 94.4KSPS is 670μA 40KSPS is 230μA 10ksps 60μA 6μA under 1KSPS 0.5μA in turn-off mode Software can configure single pole / bipolar working mode Small size, 8-pin μmax package, technology area How to design the system input and output protection circuit? Solve analog input IEC system protection issues Flexibility and high integration, teach you ADC driver configuration Resistance division sample circuit diagram summary (three resistance division sampling circuit design principle graph Internet thermostat chip application and overall solution DIY builds its own TTL oscillation circuit

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