TLC272BID

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The TLC272BID is a part of Simplified Products’ two-operational-amplifier (op-amp) family that can provide different voltage gains depending on the type of output stage utilized. It is a low cost, low power, general-purpose op-amp. This IC is an ideal choice for applications requiring an offset- adjustable, fast settling, precision op-amp in a small package.

Classification:

Application field:

The TLC272BID op-amp can be used in many signal processing applications, providing high precision signal processing with small noise and distortion. It is also suitable for medical instrumentation, such as body temperature, pulse rate, and blood pressure monitors, as well as pH meters and medical imaging equipment. The TLC272BID can be used in analog-to-digital convertors (ADC) for signal conditioning, for sample and hold circuits, for voltage comparators, and for data converters.

Working principle:

The TLC272BID operates on a standard internalise architecture, and has a wide frequency response ranging from 0 to 200kHz depending on the type of output stage used. The internalise architecture consists of two amplifier stages, the input stage and the output stage, along with two DB-type compensation networks. The input stage is designed to provide high voltage gain, while the output stage is designed to provide low distortion. The DB-type compensation networks provide the necessary stability of the amplifier.

The TLC272BID has two non-inverting amplifiers with adjustable offset, one committed for the signal conditioning and the other for the output stage. The input amplifier is configured to provide large signal gain and reduce the effect of noise, while the output amplifier is set to a low signal gain to reduce distortion. The offset adjustment is controlled by a third, offset adjustment pin and can be used to cancel out the DC offsets from the output. The output stage of the TLC272BID can be configured either as an inverting amplifier or as a non-inverting amplifier depending on the type of output required.

The TLC272BID features excellent power dissipation, with a total integrated quiescent current of only 50μA. The device is capable of providing a typical open-loop gain of more than 85dB and a large signal gain of 36dB. The IC is offered in three active differential configurations – single-ended to differential, differential to single-ended, and differential to differential. The IC also has wide operating temperature ranges, allowing it to function in both cold and hot environments.

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