AD8368ACPZ-WP

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The AD8368ACPZ-WP is an instrumentation amplifier, typically employed for amplifying weak signals and measuring an unknown voltage, current or resistance. Employing an internal bridge-type architecture, it features rail-to-rail output amplitude stability and high common-mode rejection over temperature and lifetime. These features provides a perfect platform for low-noise, low-drift reliable measurements.

The AD8368ACPZ-WP is well adapted for a variety of industrial, automotive and telecommunications applications. Conforming to both JESD8 and JESD10A standards, its sigma-delta modulator particularly benefits in systems where the highest precision is required.

The AD8368ACPZ-WP has a nominal gain of +10V/V and an open-loop gain of 100dB. With a temperature range of -40°C to +85°C, this instrumentation amplifier also offers low inherent offset voltage, 12μA maximum bias current, and low power consumption. Furthermore, the low-noise, low-distortion output of this amplifier allows for greater linearity and accuracy. These features ensure that the AD8368ACPZ-WP can faithfully reproduce real-world signals with minimal distortion.

The AD8368ACPZ-WP is designed to operate in a single-ended voltage configuration in input, with the help of a few additional resistors to set the closed-loop gain or a user-defined voltage gain-adjustment range. The circuit is capable of single-ended output voltage swings. On the other hand, an additional input connection is required for a heavy-duty box-type ac amplifier circuit.

In either configuration, the amplifier offers low-frequency cut-off and low-impedance loads, making the circuit compatible with wide range of motor control, digital signal conditioning and similar applications. When coupled with a data converter, the ADC8368ACPZ-WP can be used to measure low-level signals in a variety of environments.

The highly-constant gain of the AD8368ACPZ-WP and its wide bandwidth, low-impedance output, and low input leakage current ensures maximum accuracy while operating in differential mode. Its low-impedance common-mode varies according to the load, but the differential-mode gain remains stable across a wide range of voltage levels in both radio frequency and audio frequency ranges.

The AD8368ACPZ-WP enables a high common-mode rejection ratio (CMRR) and distortion-free amplification of low-level signals. In addition, the amplifier provides accurate measurements of low-level signals, even those with very small leakage currents. Its low voltage offset and low current offset also help to minimize errors in the measurement of unknown voltages, currents, and resistances.

The AD8368ACPZ-WP is ideally suited for use in instrumentation amplifiers, sensors, and signal conditioning applications. Its versatility, accuracy, and high-dynamic range make it a popular choice for a wide variety of industrial, automotive, and telecommunications applications. With excellent common-mode rejection, stability of output amplitude, and an internal bridge-type architecture, this instrumentation amplifier can accurately detect even the weakest signals.

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