Current Sources and Voltage References

Applying adjustable-series bandgaps

A Review of Some Outstanding Monolithic Voltage References and Their Applications

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three performance grades, the best of which has a low initial accuracy of ±0.2%. The

premium-grade references have a maximum tempco of 25 ppm/°C, over the

automo-

tive

temperature range (–40°C to +125°C). They also include a low dropout voltage of

less than 100 mV max, a low quiescent current of less than 275 µA, and a shutdown

feature that will reduce the quiescent current to less than 0.5 µA when used. All ver-

sions can work from a supply voltage as high as 5.5 volts, and the output can sink or

source up to 5 mA. The main features ...