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  • Connecting LEDs: Serial vs. Parallel
    battery (4.2V to 3.0V) used to power four white LEDs (LED forward voltage, VF, is typically 3.6V to 2.5V, depending on forward current, IF) to backlight a QVGA TFT panel. With a parallel configuration, all LED cathodes or anodes are connected together. This arrangement typically requires a buck-boost
  • MCP1701 vs MCP1701A vs MCP1702 Technical Brief
    - operating voltage maximum gave designers a solution 2.7V to 13.2V for voltages in the range of 6 to 10 volts, with the MCP1700 LDO being used for voltages up to 6.0 volts. The MCP1702 device has an input operating voltage range of 2.7V to 13.2V over the entire operating The MCP1701 was replaced
  • Precision RTD Instrumentation for Temperature Sensing
    ) tionally, RTDs are biased with a constant current source. The voltage drop across the RTD is condi- tioned using an Instrumentation Amplifier which For instance, a 2V ADC reference voltage (V ) REF requires multiple resistors, capacitors and few opera- results in a 1 µV/LSb (Least Significant Bit