Note: Obtain a copy of the LF398 Datasheet. 1. 2. A sample and hold circuit the analog signal remains constant through the conversion process. O precedes O follows O is connected between the flash converter and O is in parallel with 5. Will the LF398 operate with +/-3V supplies? O YES 3. If a 1000pF hold capacitor is used with the LF398, what is the typical acquisition time to 0.1% accuracy? O 20nS a successive approximation converter and ensures that O 100uS O 100mS O 4uS 4. If a .03uF hold capacitor is used with the LF398, how much will the output droop in 1 second during the hold mode? (Assume the temperature is 25 degrees Centigrade.) O 1uV 0 0.1V O 10nV 0 1mV Which one of the following devices requires a sample and hold circuit to operate correctly? O Flash ADC O Summer DAC O Digital Ramp ADC O R2R DAC