ISL28207FBZ-T7

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The ISL28207FBZ-T7 is part of the line of instrumentation, OP Amps, buffer amps offered by Intersil Corporation. It is a low-power, low-voltage instrumentation amplifier with an integrated low-pass filter. The amplifier has a power supply of 2.7 V to 5.5 V, which makes it suitable for demand situations in the field. It is rated in the industry as an inexpensive, low-power instrumentation amplifier, and is designed or specified for a wide range of applications, such as monitoring temperatures, measuring resistance, and providing protection in case of short circuits.
This instrumentation amplifier measures small changes in voltage or current with a high degree of accuracy. It has a low input noise voltage and low power consumption. The device can be used as a single-channel amplifier or as an active differential amplifier. It features adjustable gain, making it a great fit for many monitoring and measurement tasks. It is available in two versions, one with a single output stage (the ISL28207FBZ-T7) and one with a dual-output stage (the ISL2820FBEZ-T7).
The ISL28207FBZ-T7 features an on-chip linear low pass filter with a cutoff frequency of 5 kHz and an adjustable resistor bridge for high impedance measurements. The amplifier has a maximum gain of 64 V/V and a bandwidth of 500 kHz. The high input impeadance reduces the effects of loading and enables the use of low voltage sources. The low-noise and wide-bandwidth characteristics make the ISL28207FBZ-T7 suitable for various demanding applications, such as medical instrumentation, audio and data acquisition systems, and RF measurements.
The working principle of the ISL28207FBZ-T7 is based on the classic instrumentation amplifier topology. The device consists of three gain stages: the input differential amplifier, gain stage, and output buffer. The differential amplifier amplifies the difference between the two input voltages, V1 and V2, while rejecting the common-mode voltage. The gain stage amplifies the output of the differential amplifier, and the output buffer isolates the output from the external load. The output of this device is amplified by the gain stage and buffered by the output stage, resulting in an output voltage with increased accuracy.
In addition, the ISL28207FBZ-T7 features a low-noise linear low pass filter for noise rejection. The low pass filter removes undesired frequencies above 5 kHz, reducing high frequency noise and improving stability. The adjustable resistive bridge can be used for testing at high resistive loads such as RTDs, thermocouples, and thermistors. The device is over-temperature and current-limit protected, making it suitable for applications where safety and reliability are paramount.
The ISL28207FBZ-T7 is an ideal choice for many monitoring and measurement applications. Its low power consumption, wide bandwidth and adjustable gain make it an effective, low-cost solution for a variety of demanding applications. Its adjustable resistive bridge, low-noise linear low pass filter and over-temperature protection add additional value to the device and make it an ideal choice for many different instrumentation, measurement, and monitoring applications.

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