Current Sources and Voltage References

448

Applying the bandgap shunt reference

needs to be a good-quality, low-tolerance (less than ±0.5%) precision type (e.g.,

metal-film, wirewound, thin-film), with a low tempco of less than 30 ppm/°C and a

higher than needed wattage rating (i.e., 100 mW).

If you are looking for a shunt reference with a very low quiescent current, Maxim has

some of the lowest power references available in the industry. One such family is the

MAX6006

series of shunt references, which feature a minimum I

Q

of less than 1 µA

and an operating current range of 1 µA to 2 mA. This low I

Q

, together with being avail-

able in three-pin SOT-23 packages, makes them perfect f ...