OPA2317IDGKT

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Instrumentation amplifiers (IAs) play a vital role in many electronics applications, ranging from signal processing to embedded control systems. The OPA2317IDGKT is a type of IA that uses two-stage op-amp topology, providing superior signal accuracy, low noise, and low power consumption. In applications where signal discipline and signal linearity is important, IAs are a preferred choice.

Overview

The OPA2317IDGKT is a precision, low-noise, two-stage IA designed to operate on a single supply voltage. It is unity gain stable, and can be configured to achieve gains up to 64.6 decibels (dB). Moreover, it features a unity gain bandwidth of 13.1 megahertz (MHz) and a slew rate of 14 volts per microsecond (V/μs), making it well-suited for high-precision applications. Additionally, the device operates with a low quiescent current of only 75 microamperes (μA) and exhibits excellent temperature properties, including a temperature coefficient of only 25 parts per million per degree Celsius (ppm/°C).

Application Field and Working Principle

The OPA2317IDGKT IA is typically used in signal conditioning tasks, such as in peripheral sensor applications, telecom, automotive systems, and medical instrumentation. In addition, since the device has a wide signal range, it is suitable for data acquisition and control systems. Finally, the device has excellent signal-to-noise performance, which is ideal for audio signal processing and low-level signal-level applications, such as instrumentation.

The OPA2317IDGKT IA consists of two amplifiers: the input-stage amplifier and the output-stage amplifier. The input-stage amplifier consists of two high-impedance differential front-end amplifiers, providing excellent common-mode rejection ratio (CMRR). Furthermore, the output-stage amplifier employs a current-feedback topology, which enables excellent high-frequency response and good slew rate. The two amplifiers are connected in a closed loop configuration, providing high gain accuracy and linearity performance.

Overall, the OPA2317IDGKT is a precision IA for low-level signal conditioning applications requiring high signal accuracy and low power consumption. Its differential input and output-stage amplifiers provide excellent characteristics for accurate and linear signal processing, such as wide signal range, low-noise, and fast speed.

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