HFA1130IBZ

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The HFA1130IBZ is an instrumentation amplifier that provides a stable and accurate gain path for a variety of signal conditions. Its unique design provides excellent immunity from interference effects and makes it a suitable amplifier for low frequency signal amplifications of up to 1 MHz. The HFA1130IBZ features a wide operating temperature range of -55°C to +125°C and can be combined with other amplifiers to increase its performance.

The HFA1130IBZ is a low noise three-stage-amplifier with high common-mode rejection ratio (CMRR) and low offset-voltage-noise. It operates on a single power supply voltage, making it ideal for applications in battery-powered devices such as portable audio devices and medical/weighing instruments. It also has high input impedance and low input bias current, making it suitable for use in bridge and transduction applications.

The amplifier has a large dynamic input range and is suitable for measuring large-signal voltages up to +/- 30 volts peak. The HFA1130IBZ also provides amplifier outputs of up to +/- 4 volts peak. The unit is capable of providing gain up to 20 dB, with frequency response ranging from DC to 1 MHz.

The HFA1130IBZ is mainly used for instrumentation and data conversion applications. It can be used as a bridge transducer amplifier, voltage follower, current amplifier, or a DC amplifier. It can also be used in audio applications such as preamplifiers and frequency selective circuits. The mixed or differential inputs and the single-ended or differential outputs make the amplifier suitable for many applications requiring precision linear amplification.

The working principle of the HFA1130IBZ is based on the cascading of gain stages. It has two voltage gain stages, each having a fully differential amplifier followed by a unity-gain buffer stage and then a common-mode feedback loop for further stabilizing the gain. This allows for a large input and output dynamic range without distortion. The HFA1130IBZ amplifies signals in the DC to low frequency range with very low noise, distortion and offset.

The HFA1130IBZ is a versatile and highly reliable amplifier that offers excellent DC accuracy, high speed and low noise. It is suited for many instrumentation and data conversion applications, providing excellent gain accuracy and low offsets across the entire temperature range.

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