Four-quadrant multiplier using the floating-bulk technique for rail-to-rail input range and insensitivity to different input dc levels

Symmetric ultralow-voltage floating-gate rail to rail four quadrant analog multiplier

The floating-gate transistor can be used to design analog circuits, such as current mirrors [1], current scaler[2] and current multiplier [3, 4] and divider [4]. The multiple input floating-gate transistor can be used to design ultra lowvoltage “pseudo differential” pairs [1], hence ULV rail-to-rail amplifiers and analog multipliers are feasible using the floating-gate technique. In this paper ...

SINGLE - SUPPLY AMPLIFIERS Rail - to - Rail Input Stages Rail - to - Rail Output Stages Single - Supply Instrumentation

Operational Amplifiers Rail to Rail Input Stages Using Complementary Differential Pairs

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A constant GM rail-to-rail opamp with a novel input stage for BiCMOS process

AbstractA BiCMOS rail-to-rail operational amplifier capable of operating from supply voltages as low as 1.W is presented. A new technique of achieving a rail-to-rail input common mode range us'ing a bipolar input stage is developed. The new technique avoids the use of complementary pairs at the input and thus avoids complicated schemes for monitoring the constant g,?, . The resulting variation ...

Constant- Rail-to-Rail CMOS Op-Amp Input Stage with Overlapped Transition Regions

Conventional techniques to achieve a constant-gm rail-to-rail complementary N-P differential input stage require complex additional circuitry. In addition, the frequency response and common-mode rejection ratio (CMRR) are degraded. An economical but efficient design technique to overcome these problems is proposed. The proposed technique strategically overlaps the transition regions of the tail...