OPA2354AIDGKTG4

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

OPA2354AIDGKTG4 is a bipolar-input, micropower operational amplifier (op-amp) from Texas Instruments. It belongs to the family of low-power op-amps and is specifically designed for use in very low-power battery-operated applications. This device is specified for operation from a single +2.5V to +5.5V supply and is ideal for 5V or 3V applications.

The OPA 2354AIDGKTG4 op-amp exhibits excellent DC performance, low offset voltage and offset voltage drift, very low input bias and offset currents, good linearity over temperature, and high gain and phase margin. On-chip CMOS trimming is used to optimize the DC parameters and precision AC performance. The device is unity gain stable and can be used in single as well as multiple supply applications without external components.

Applications

The OPA2354AIDGKTG4 op-amp can be used in various applications, such as micropower filtering and signal conditioning, portable test and measurement, data acquisition, and instrumentation. It is also suitable for audio line driver applications, voltage regulators, modulators, and active filters.

Working Principle

The working principle of the OPA2354AIDGKTG4 op-amp is the same as any other type of op-amp. It consists of two input transistors, which are both connected to a common base resistor, and two outputs - the inverting output (Out -) and the non-inverting output (Out +). The inputs are connected to a differential amplifier, which provides the amplification necessary to drive the output.The input transistors are arranged in such a way that the inverting input (In-) is connected to the inverting output (Out -) and the non-inverting input (In+) is connected to the non-inverting output (Out +).The differential amplifier is made up of the common base resistor, the other resistors connected to the bases of the input transistors, and the matching transistors, which control the gain of the amplifier.The gain of the amplifier is determined by the ratio of the resistor connected to the base of the input transistor and the common base resistor. The output currents are then established by the ratio of the input current, the gain of the amplifier, and the emitter current.

The OPA2354AIDGKTG4 op-amp is a great choice for low-power applications that require a reliable, low-noise, stable operation. It can be used in a wide range of applications, from single and multiple supply applications, to audio line drivers, voltage regulators, and active filters. The device offers excellent DC performance, low offset voltage and offset voltage drift, very low input bias and offset currents, good linearity over temperature, and high gain and phase margin.