ISL28286FUZ-T7 Integrated Circuits (ICs)

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The ISL28286FUZ-T7 is a instrumentation amplifier (InMinAmp) device with an integrated feedback resistor. It is designed for low-voltage single-supply and differential signal applications. The integrated feedback resistor has a low temperature coefficient and provides tight gain tracking and bandwidth accuracy over the entire common-mode voltage range.

ISL28286FUZ-T7 is an ideal solution for applications such as medical instruments, temperature control, remote sensing, automotive critical signal conditioning systems, and high speed instrumentation. This device is suitable for use in high-temperature and extreme environments such as those found in automotive, avionics, and industrial applications. The device can be used in either single-supply or dual-supply applications.

The ISL28286FUZ-T7 has an input range of -Vdd to +Vdd, where Vdd is the supply voltage. The input stage of the device consists of a pair of matched, low-noise amplifiers. These amplifiers are configured as a modification of a standard instrumentation amplifer, using a simplified feedback scheme.

The gain of the amplifier is set by a resistor divider network, with resistors R1, R2, and R3. The gain can be adjusted from 0dB to 30dB in 0.1 dB steps. The gain range is dependent on the value of the feedback resistor R2. The output signal can be adjusted to be either unipolar (offset) or bipolar (differential).

At the output stage, the signal is split into two complementary signals, Vout+ and Vout- which are then buffered by the output buffers U1A and U1B. The buffers provide high output current and low output impedance, ensuring a tight common-mode voltage range and low distortion in the signal. The output stage is protected against overload by the thermal overload protection circuit.

The ISL28286FUZ-T7 is a low-power and low-noise device with a high common-mode rejection ratio and high accuracy over the entire supply voltage range. This device is also capable of operation in a wide temperature range. The integrated feedback resistors ensure tight gain tracking and bandwidth accuracy, making the ISL28286FUZ-T7 an ideal solution for applications requiring low-voltage single supply, differential signal processing and low-noise operation.

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