INA2126UA/2K5

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INA2126UA/2K5 is a versatile CMOS instrumentation amplifier. The device has two wide-range inputs and single-ended output. It is designed for flexibility in applications such as strain gauge data collection, pressure transducers, flow meters and temperature measurement. The two-stage amplifier configuration provides outstanding performance and low power consumption. This amplifier is available in 5.0V and 3.6V supply voltage.

The INA2126UA/2K5’s wide bandwidth makes it suitable for a variety of high-precision applications. Its high-impedance input, low-noise performance, low-power consumption, and low-offset voltage make it ideal for noise-sensitive applications. The high gain and large common-mode rejection ratio (CMRR) ensure accurate differential signals. Additionally, its low slew rates, non-overlapping operation and low-cost integrated package make it ideal for low-bandwidth, low-voltage, small-signal measurements in the most demanding applications.

The working principle of INA2126UA/2K5 is simple. It utilizes precision matched differential input stages connected to the output terminal in an inverting topology. The two differential amplifier inputs are connected to the two inputs of the opamp, usually a low-cost transistor-transistor logic (TTL) opamp. The output is taken from the summing node of the feedback loop. The differential inputs and opamp are connected to the positive supply rail. The negative supply rail should be connected to the ground.

The INA2126UA/2K5 works by converting a small differential voltage input into a single-ended output voltage. The differential voltage between the two inputs is amplified, then inverted and summed. The resulting output voltage is determined by both the gains of the two differential amplifiers and the open-loop gain of the opamp. The gain of the amplifier stages is controlled by the resistors in the feedback loop. Generally, the ratio of the resistors sets the gain of the amplifier. The gain of the opamp is typically fixed and determined by the device parameters.

The INA2126UA/2K5 is a versatile device for linear amplifier, instrumentation, operational amplifiers, buffer amplifiers, and data acquisition applications. It is suitable for a variety of high-precision applications due to its wide bandwidth, high-impedance inputs and low-power consumption. Additionally, its low offset voltage, large common-mode rejection ratio and low slew rate make it ideal for low-bandwidth, low-voltage, small-signal measurements. Its simple working principle and integrated package make it an attractive choice for today’s applications.

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