For third OP-AMP, inverting input is applied at pin. The output of second OP-AMP is obtained at pin no.

For second OP-AMP, inverting input is applied at pin. The output of the first OP-AMP is obtained at pin no. For first OP-AMP, inverting input is applied at pin. This single supply or two power supplies will make all four OP-AMPs operative. The terminals or the pins used are pin no. LM324 can be operated by a single power source. Output Short Circuit to Ground (Single Amplifier) Junction-to-ambient thermal Resistance (☌/W) The operational electrical specification and features of LM324 are shown as: Parameters Other Alternative options are AD620, LM4871, LM709, LM201 LM324 Quad OP-AMP Features This pin is for obtaining an output of 4 th OP-AMP This pin is for applying inverting input voltage to 4 th OP-AMP This pin is for applying non-inverting input voltage to 4 th OP-AMP This pin is for connecting ground for single voltage operation or the second as Vee for dual power supply operation This pin is for applying non-inverting input voltage to 3 rd OP-AMP This pin is for applying inverting input voltage to 3 rd OP-AMP This pin is for obtaining output of 3 rd OP-AMP This pin is for obtaining output of 2 nd OP-AMP This pin is for applying inverting input voltage to 2 nd OP-AMP This pin is for applying non-inverting input voltage to 2 nd OP-AMP This pin is for connecting supply voltage. This pin is for applying non-inverting input voltage to 1 st OP-AMP This pin is for applying inverting input voltage to 1 st OP-AMP This pin is for obtaining output of 1 st OP-AMP

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