TLC27L2BCDG4

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TLC27L2BCDG4 is a dual low-power operational amplifier (op-amp) with rail-to-rail input and output stages, which is able to data-convert large signals. It is a member of Texas Instruments\' family of low-power, precision, BiCMOS op-amps. With low-noise and wideband capabilities, it is used in several applications, such as gain amplification, analog signal modulation and voltage-to-current transducers. This article aims to discuss its application field, working principle and technical specifications.

Application Field

The TLC27L2BCDG4 is a useful device for satisfying the requirements of low-power, low-voltage, precision applications, especially those that require rail-to-rail input and output voltage ranges. It can work at a power supply of 1.8 V to 5.25 V and its bandwidth of 2 MHz makes it an excellent choice for precision signal conditioning and data acquisition applications. Moreover, the op-amp is able to drive up to 24 mA of load current and it has excellent DC performance to allow application of a wide variety of filtering and gain requirements. Typical applications for the TLC27L2BCDG4 include instrumentation, current-to-voltage conversions, sensor interfaces, active filters, data acquisition, voltage-controlled current sources, audio and video circuits, motor control, and medical electronics.

Working Principle

The main structure of the TLC27L2BCDG4 is composed of a pair of precision CMOS op-amps with a common mode input range of 0 V to 2.7 V. Each op-amp also provides a fast, low-power performance with a unity-gain bandwidth (GBWP) of 10 MHz and a full-power response of 2 MHz, thus delivering good signal fidelity in pulse-width modulated (PWM) and sampling applications. The input and output circuits are protected by integrated overvoltage protection, which prevents backvoltage at the input and output of the op-amp. Additionally, the op-amp features an input offset voltage of ±25 µV and a signal to noise ratio (SNR), over 1 MHz bandwidth, of 74 dB.

The TLC27L2BCDG4 is capable of outputting signal swings of rail-to-rail, with a maximum output voltage swing of 2.7 V. The op-amp has an open loop gain of 130 dB and a slew rate of 5 V/µS. Its input common mode range of 0 V to 2.7 V supports a single supply operation. Its low voltage operation also allows for a wide range of operation, with the range spanning from 1.8 V to 5.25 V, and its low-noise and wideband capabilities make it highly suitable for applications such as active filters and data acquisition.

Technical Specifications

The TLC27L2BCDG4 is packaged in 8-lead Mini-DIP (Dual In-line Package), 16-lead PDIP (Plastic Dual In-line Package) or 8- and 16-lead SOP (Small Outline Packages). It is an excellent choicer for precision signal conditioning and data acquisition applications.

The device offers an excellent DC performance, with an input offset voltage of ±25 µV and low-noise of 74 dB, SNR. It also provides good power consumption performance, high-impendance inputs and common mode range of 0 V to 2.7 V. Moreover, the TLC27L2BCDG4is equipped with internal over-voltage protection to prevent back-voltage.

To sum up, the low power TLC27L2BCDG4 is a dual low-power operational amplifier (op-amp) with rail-to-rail input and output stages, which is able to data-convert large signals. This op-amp is suitable for a wide range of application, including instrumentation, current-to-voltage conversions, sensor interfaces, active filters, data acquisition, voltage-controlled current sources, audio and video circuits, motor control, and medical electronics. It features a low-noise and wide-band capabilities, coupled with an input offset of ±25 µV, unity-gain bandwidth of 10 MHz, and a full-power response of 2 MHz, which makes it an excellent choice for precision signal conditioning and data acquisition applications.

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