Lt1009 2 5v precision shunt voltage reference to 92 texas instruments tistt1009clp the lt1009 is a linear 2 5v shunt regulator that features low dynamic impedance and a wide operating current range a high initial tolerance of plusmn 5mv is achieved by precision on chip trimming which also guarantees a minimum temperature coefficient though not requiring any adjustment of the reference voltage this device is provided with an adjustment terminal that accesses a plusmn 5 adjustment that ca