ISL55001IBZ-T13

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The ISL55001IBZ-T13 is a low voltage, extremely low power, precision instrumentation amplifier used for a variety of instrumentation and closed-loop control applications. This amplifying instrument has three pins for power, inputs, and output. It has wide linearity frequency range of up to 150kHz, and is capable of providing excellent gain accuracy and wide common-mode rejection ratio of up to 61dB. The device family is organized into two types, ISL55001 and ISL55004, to provide a range of gain, input impedances, and bandwidth. It is a cost effective, fully differential solution that can operate with single supply input of ±1.65V to ±18V. It is also able to drive direct analog-to-digital converters (ADCs). The device is used for the measurement and analysis of signals in the following application fields: high input impedance instrumentation amplifiers, low power closed-loop gain adjustment blocks, and high common-mode rejection filters. It is also used in applications such as analog load cell signal conditioning, pressure sensors, load cell bridge applications, sensor interface circuits, and instrumentation amplifier circuits.

The working principle of the ISL55001IBZ-T13 is based on an inverting amplifier topology, with the use of additional circuitry to make it suitable for use in the various applications mentioned above. The inverting amplifier amplifies the input signal and inverts the phase, meaning the output signal is the opposite of the input signal. The device has a user-configurable gain, over a range of 0.1 to 10,000, and its input includes two high-impedance differential inputs. The device also includes a voltage divider network to provide adjustable offset and/or signal condition when operating with higher gains. The output is temperature compensated, enabling the device to remain linear over a wide temperature range. Finally, the device includes a common-mode feedback stage that is used to maintain high common-mode rejection ratio by canceling the output error caused by input offset and noise.

In conclusion, the ISL55001IBZ-T13 is a high-performance instrumentation amplifier for a range of applications, including high input impedance instrumentation amplifiers, low power closed-loop gain adjustment blocks, and high common-mode rejection filters. It is designed with a fully differential solution with three pins and is capable of providing excellent gain accuracy and wide common-mode rejection ratio of up to 61dB. The device has a user-configurable gain, and its output has a temperature compensation feature that allows operation over a wide temperature range. Additionally, the device includes a voltage divider network and a common-mode feedback stage for additional performance. As a result, the device is a cost-effective solution for a wide variety of instrumentation, closed-loop control, and sensor interface applications.

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