ZHCSJ12Z October 1979 – May 2025 LM139 , LM139A , LM239 , LM239A , LM2901 , LM2901AV , LM2901B , LM2901V , LM339 , LM339A , LM339B
PRODMIX
請參考 PDF 數據表獲取器件具體的封裝圖。
The comparator consists of a PNP Darlington pair input, allowing the device to operate with very high gain and fast response with minimal input bias current. The input Darlington pair creates a limit on the input common mode voltage capability, allowing the comparator to accurately function from ground to VCC– 2V over temperature. A clamp is added around Q3 to mimic the both inputs above input voltage range behavior of the original classic silicon.
The output consists of an open drain NPN (pull-down or low side) transistor. The output NPN sinks current when the negative input voltage is higher than the positive input voltage and the offset voltage. The VOL is resistive and scales with the output current. Please see the "Output Low Voltage vs. Output Sinking Current" graphs for VOL values with respect to the output current.