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A sense amplifier is a circuit that is used to amplify and detect small signals in electronic systems. It is commonly used in memory circuits, such as dynamic random access memory (DRAM) , to read and amplify the weak signals stored in memory cells.
A differential amplifier is a type of electronic amplifier that amplifies the difference between two input voltages but suppresses any voltage common to the two inputs. [1] It is an analog circuit with two inputs and + and one output , in which the output is ideally proportional to the difference between the two voltages:
Differential amplifiers respond to differential signals by amplifying the difference between the voltages on the amplifier’s two inputs. The electronics industry, particularly in portable and mobile devices, continually strives to lower supply voltage to save power. [citation needed] A low supply voltage, however, reduces noise immunity ...
Some current sense amplifiers measure current flowing in a single direction; bidirectional amplifiers measure current flow in both directions through the sense resistor. [1] Normal differential amplifiers and operational amplifiers powered between two power supply rails (say V CC and V EE) can only handle signals that lie between these two ...
A fully differential amplifier (FDA) is a DC-coupled high-gain electronic voltage amplifier with differential inputs and differential outputs. In its ordinary usage, the output of the FDA is controlled by two feedback paths which, because of the amplifier's high gain, almost completely determine the output voltage for any given input.
A non-isolated differential amplifier can only withstand common-mode voltages up to the power supply voltage. Similar to the instrumentation amplifier, isolation amplifiers have fixed differential gain over a wide range of frequencies, high input impedance and low output impedance.
Current mode logic (CML), or source-coupled logic (SCL), is a digital design style used both for logic gates and for board-level digital signaling of digital data.. The basic principle of CML is that current from a constant current generator is steered between two alternate paths depending on whether a logic zero or logic one is being represented.
Amplifiers includes precision and operational amplifiers, [58] instrumentation, [59] [60] current sense, differential amplifiers, [61] [62] audio amplifiers, video amplifiers/buffers/filters, variable gain amplifiers, comparators, voltage, other specialty amplifiers and products for special linear functions.