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The AD589 is a PMIC- Voltage Reference that works as a Two-Terminal shunt-type regulator that allows a consistent 1.23V output voltage for a wide range of input currents from 50 µA to 5 mA. Considering that no frequency compensation is needed if additional filtering 1.2 is required for extremely low noise applications, where the minimum recommended capacitance is 1000pF. For input currents between 50 A and 5.0 mA, the AD589 2-terminal, inexpensive, temperature-compensated bandgap voltage reference that delivers a fixed 1.23 V output voltage. The matching and heat tracking of the on-chip components play a key role in the AD589's exceptional stability. Precision bipolar processing and thin-film technology from Analog Devices work together to deliver high performance at a reasonable price. Additionally, the output impedance of the active circuit is 10 lower than that of standard low-TC Zener diodes. With the help of this feature, the operation is possible without the need for any additional parts to preserve precision under varying load situations.
For more information please check the datasheets.
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