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Solutions Signal Conditioning Operational Amplifiers (Op Amps) Low Power Amplifiers (Is < 1mA)
Solutions Signal Conditioning Voltage References Shunt Voltage References
Solutions DC Regulator Solutions Current Source Solutions

Two Terminal Current Source

Two Terminal Current Source

The opamp buffers the upper potential of a shunt regulator to set a voltage drop on R1 equal to the reference. The net current to RL is the programmed R1 current plus the quiescent supply current of the opamp passing through the reference.

 

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