MC4558CP

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The MC4558CP is a dual general-purpose op amp from Motorola. It is a part of their bipolar linear family and is suitable for general purpose applications due to its low voltage operation, low input bias current and low noise figure. It is a popular choice when precision low noise operation is needed, as well as when a low power budget is a consideration. The op amp offers a wide range of features and can be used in a variety of applications.

Application Field

The MC4558CP can be used in many applications because of its wide range of features. It can be used in instrumentation amplifiers, buffer amplifiers, and operational amplifiers. Its low power usage makes it ideal for applications where power is at a premium. It is also well-suited for portable devices, enabling low noise operation with minimal battery drain. Additionally, the op amp is suitable for medical instrumentation, power supplies, and sensors.

Instrumentation amplifiers are used for measuring very small signals over long periods of time. The MC4558CP has features that make it ideal for this application, including low gain drift, low input bias current, and high common-mode rejection ratio. Buffer amplifiers are used to boost current level and impedance, as well as driving additional loads. The MC4558CP is able to drive up to 500mA while having a minimal power consumption and can maintain high accuracy with both high output current and low noise levels. Operational amplifiers are used in many applications, including analog-to-digital and digital-to-analog conversion, analog multiplexers, sample-and-hold circuits, and active filters.

Working Principle

The MC4558CP has a two-stage architecture, and uses bipolar power supply rails for better performance. It can be configured for single- or dual-ended operation, and offers low power consumption with either supply voltage. The dual op-amp circuit uses two separate differential pairs for inverting and non-inverting inputs. The inverting input includes an additional off-chip resistor for gain and offset control. The output stage of the circuit is an active stage, in which the output voltage is controlled indirectly through a voltage feedback network. This network provides a high degree of accuracy and rejection of output errors. The output of the circuit is buffered by an emitter follower, providing a low output impedance while maintaining high accuracy.

The MC4558CP has a range of features that make it ideal for a wide range of applications, including low noise operation, low power consumption, and precise offset control. It is a part of Motorola\'s linear family, and is suitable for instrumentation amplifiers, buffer amplifiers, and operational amplifiers.

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