AD8667ARZ-REEL7

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The AD8667ARZ-REEL7 is a high-performance, micropower instrumentation amplifier with rail-to-rail outputs. It is available in a low-profile package, making it ideal for space-constraint applications. The amplifier features very low supply current of 1.4 μA, guaranteed to be over a wide range of conditions. Featuring excellent distortion performance, the AD8667ARZ-REEL7 is ideally suited for precision applications.

The working principle of the AD8667ARZ-REEL7 is based on a fully differential amplifier topology. The input stage is made using a low quiescent current differential amplifier with laser-trimmed matched resistors to minimize noise and ensure low distortion. The gain stage is made with a pair of high-performance, matched transistor pairs to maintain excellent output swing and off-state current. The output stage uses two low-drift, matched, transconductance amplifiers for a relatively flat distortion profile over the entire frequency range.

The AD8667ARZ-REEL7 can be used for a variety of instrumentation applications such as precision current measurement, strain gauge, thermistor, piezo and crystal measuring transducer measurements, medical instrumentation, pressure and force transducer measurement, and audio equipment. It is also a good choice for general-purpose amplifier applications. It can provide 0.15V/V gain over a wide range of frequencies, up to the Nyquist frequency, with a third order intercept point of -70 dBV.

The AD8667ARZ-REEL7 is designed to work with single-supply voltage, between 2.7V and 5.5V. It has an input common-mode range of 0V to VDD, and an output common-mode range of VSS to VDD/2. It also features a bypass capacitor to reduce noise sensitivity, and it is ESD protected for increased durability. Finally, it features overdrive protection for safe operation.

In summary, the AD8667ARZ-REEL7 from Analog Devices is a high-performance micropower instrumentation amplifier. It is designed with a fully differential amplifier topology, and a low quiescent current differential amplifier to minimize noise and distortion. It has rail-to-rail outputs, a wide common-mode range, excellent distortion performance, and it is ESD protected. Due to its features and low current consumption, it is well suited for applications such as precision current measurement, strain gauge measurement, thermistor measurement, audio equipment, and general-purpose amplifier applications.

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