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MAX6101 Datasheet(PDF) 10 Page - Maxim Integrated Products |
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MAX6101 Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 12 page Applications Information Input Bypassing For the best line-transient performance, decouple the input with a 0.1µF ceramic capacitor as shown in the Typical Operating Circuit. Locate the capacitor as close to IN as possible. Where transient performance is less important, no capacitor is necessary. Output/Load Capacitance Devices in the MAX6101 family do not require an output capacitance for frequency stability. They are stable for capacitive loads from 0 to 1µF. However, in applications where the load or the supply can experience step changes, an output capacitor will reduce the amount of overshoot (undershoot) and improve the circuit’s transient response. Many applications do not require an external capacitor, and the MAX6101 family can offer a significant advantage in these applications when board space is critical. Supply Current The quiescent supply current of the series-mode MAX6101 family is typically 90µA and is virtually indepen- dent of the supply voltage, with only a 10µA/V (max) vari- ation with supply voltage. Unlike series references, shunt-mode references operate with a series resistor con- nected to the power supply. The quiescent current of a shunt-mode reference is thus a function of the input volt- age. Additionally, shunt-mode references have to be biased at the maximum expected load current, even if the load current is not present at the time. In the MAX6101 family, the load current is drawn from the input voltage only when required, so supply current is not wasted and efficiency is maximized at all input voltages. This improved efficiency reduces power dissipation and extends battery life. When the supply voltage is below the minimum specified input voltage (as during turn-on), the devices can draw up to 400µA beyond the nominal supply current. The input voltage source must be capable of providing this current to ensure reliable turn-on. Output Voltage Hysteresis Output voltage hysteresis is the change of output voltage at TA = +25°C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical tem- perature hysteresis value is 130ppm. Low-Cost, Micropower, Low-Dropout, High-Output-Current, SOT23 Voltage References 10 ______________________________________________________________________________________ Typical Operating Characteristics (continued) (TA = +25°C, unless otherwise noted.) NAME FUNCTION 1 IN Input Voltage 2 OUT Reference Output PIN 3 GND Ground Pin Description MAX6105 TURN-ON TRANSIENT 100 µs/div VIN 2V/div VOUT 2V/div MAX6102 0.1Hz TO 10Hz OUTPUT NOISE 1s/div 20 µV/div MAX6105 0.1Hz TO 10Hz OUTPUT NOISE 1s/div 20 µV/div |
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