Electronics Handbook/Components/Op Amp Network

Circuit	${\frac {V_{o}}{V_{i}}}$	Function
Inverting amplifier	$V_{\mathrm {out} }=-V_{\mathrm {in} }\left({R_{f} \over R_{1}}\right)$	Inverting Amplifier
Non-inverting amplifier	$V_{\mathrm {out} }=V_{\mathrm {in} }\left(1+{R_{2} \over R_{1}}\right)$	Non Inverting Amplifier
Voltage follower	$V_{\mathrm {out} }=V_{\mathrm {in} }\!\$	Voltage Follower
Summing amplifier	$V_{\mathrm {out} }=-R_{\mathrm {f} }\left({V_{1} \over R_{1}}+{V_{2} \over R_{2}}+\cdots +{V_{n} \over R_{n}}\right)$	Voltage Adder
Integrating amplifier	$V_{\mathrm {out} }=\int _{0}^{t}-{V_{\mathrm {in} } \over RC}\,dt+V_{\mathrm {initial} }$	Integrator
Differentiating amplifier	$V_{\mathrm {out} }=-RC\left({dV_{\mathrm {in} } \over dt}\right)$	Differentiator
Schmitt trigger	Hysteresis from ${\frac {-R_{1}}{R_{2}}}V_{sat}$ to ${\frac {R_{1}}{R_{2}}}V_{sat}$	schmitt trigger
Inductance gyrator	L = RLRC	Gyrator
Negative impedance converter	$R_{\mathrm {in} }=-R_{3}{\frac {R_{1}}{R_{2}}}$	Negative Impedance Converter
Logarithmic configuration	$v_{\mathrm {out} }=-V_{\gamma }\ln \left({\frac {v_{\mathrm {in} }}{I_{\mathrm {S} }\cdot R}}\right)$	Logarithmic
Exponential configuration	$v_{\mathrm {out} }=-RI_{\mathrm {S} }e^{v_{\mathrm {in} } \over V_{\gamma }}$	Exponential