AD8290ACPZ-R7

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The AD8290ACPZ-R7 is a variable gain amplifier (VGA) for linear instrumentation, OP amps, buffer amps, and other applications, that features low power consumption, high accuracy and wide gain range. It is designed to help reduce system noise and distortion levels, while providing excellent dynamic range, impedance matching and linearity over wide gain ranges.

The device\'s low power consumption makes it suitable for uses in small, battery-operated systems, while its wide gain range allows for fine-tuning of dynamic range, allowing for a maximum linearity and dynamic range. The device features a gain of up to 100dB in a tiny 6-pin SC-70 package. Its operating temperature range is -40°C to +85°C.

Analog Devices\' AD8290ACPZ-R7 is designed to interface with various types of load and source circuitry, including common-mode systems. To ensure accuracy, it features integrated output amplifier, offset, gain and power supply corrections. It is also optimized to improve total harmonic distortion (THD) levels below 0.001%.

The AD8290ACPZ-R7 includes numerous features to help improve overall system performance. It has both open-loop and closed-loop gain control, offering precision and linearity. It also has integrated level shifting, allowing for easy interfacing to various voltage levels.

The device operates on a single supply and achieves a low current consumption of 1.3mA (typ) and a supply voltage range of 4.5V to 5.5V. The device\'s fast power-up and power-down times (50us) allow fast gain transition with minimal settling time.

The device also features power-on reset, along with programmable gain to prevent start-up glitches and to allow for setting the gain during startup. The AD8290ACPZ-R7 also includes an enable input for power-on control and a polarity control pin for reversing gain polarity.

One of the advantages of the AD8290ACPZ-R7 is its protection features, which include open loop gain protection, output voltage protection and power supply voltage (VCC) protection. The open loop gain protection guards the device from any overloading of the gain control. The output voltage protection circuit limits the output of the amplifier to a specified voltage level, protecting the load from being overdriven. And the VCC protection prevents damage to the amplifier and system circuitry if an abrupt change of supply voltage is detected.

In short, the AD8290ACPZ-R7 is a low-power VGA designed for linear instrumentation, OP amps, buffer amps, and other applications. It provides high accuracy and offers an excellent dynamic range, impedance matching and linearity over wide gain ranges, with low distortion levels and fast power-up and power-down times. The device also has various integrated protection functions. It is an ideal solution for applications requiring precise gain control and low distortion.

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