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US 7,733,260 B2Granted
Multistage amplifier and a method of settling the multistage amplifier
AssigneeSamsung Electronics Co., Ltd.
InventorsJung-ho Lee, Jung-eun Lee, Hong-rak Son
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Abstract
A method of settling an amplifier and a multistage amplifier are provided. To settle an amplifier, a plurality of clock signals are, respectively, applied to preset switches, each of which is placed between amplifiers connected in cascade, to open the preset switches sequentially, thereby settling the amplifiers in order.
Claims10
A multistage amplifier comprising:
- a plurality of amplifiers to amplify an input signal according to a gain of each amplifier and output the amplified signal;
- a plurality of preset switches to settle the corresponding amplifiers based on clock signals;
- and
- a clock generator to generate a multiphase clock signal to turn off the preset switches sequentially and to apply the multiphase clock signal to the respective preset switches to sequentially settle the amplifiers.
1 more element
An analog-digital converter comprising a track-hold switch, an encoder and a multistage amplifier which comprises:
- a plurality of amplifiers to amplify an input signal according to a gain of each amplifier;
- a plurality of preset switches to sequentially settle the corresponding amplifiers based on clock signals;
- and
- a clock generator to generate a multiphase clock signal to turn off the preset switches sequentially and to apply the multiphase clock signal to the respective preset switches to sequentially settle the amplifiers.
1 more element
A method of settling an amplifier, the method comprising:
- generating a plurality of different clock signals;
- and
- applying the clock signals to respective preset switches to sequentially settle amplifiers that are connected to amplify an input signal according to a gain of each amplifier,
- wherein the clock signals turn off the respective preset switches such that an output of a following amplifier is settled after an output of a preceding amplifier passes a zero-crossing point and is settled.
1 more element
Dependencies are inferred from the claim text.