AD8421ARMZ-R7

The AD8421ARMZ-R7 is a low-noise, high-accuracy, low-drift, 4-channel instrumentation amplifier for measurement systems.

It is a low-power, precision amplifier that provides amplified signal buffering and dynamic accuracy over a wide range of temperature and operating conditions.

The AD8421ARMZ-R7 features a -3dB bandwidth of 500 kHz, low noise of only 4 nV/√Hz, and excellent common-mode rejection ratio (CMRR) of 65 dB. This instrumentation amplifier provides a high level of accuracy by attenuating unwanted signals and maintaining excellent noise immunity. It also provides a low output voltage noise of 1.3 mV RMS, which is an order of magnitude lower than standard differential amplifiers.

The AD8421ARMZ-R7’s high-voltage input stages feature a fast settling time of 2 µs and an input range of ±12V. The device also features a low offset voltage of 0.5 mV and a low offset current of 5 pA, ensuring accurate signal measurements.

The AD8421ARMZ-R7 is a fully differential amplifier with a gain of +5V/V and a unity-gain bandwidth of 600 kHz. This product is designed for AC signal processing applications, such as instrumentation amplifiers, low-side current sensors, audio Line Interface Modules, and power measurement systems.

The amplifier provides excellent AC performance with a low gain flatness, high CMRR, and low input capacitance. This product offers extended operating temperature range of -40 °C to +105 °C, ensuring reliable operation even in extreme conditions.

The AD8421ARMZ-R7 is a simplified design instrumentation amplifier with two digital and two analog inputs. It is designed to provide high level signal buffering and improved noise immunity. Its low-noise input stages reject unwanted signals, ensuring accurate signal measurements even from noisy environments.

The amplifier works by first amplifying the input signal and then attenuating any unwanted signals. It is then further amplified and the output is presented. This device is suited for single-supply and dual-supply applications with high performance and reliable operation, and is designed to meet the demands of harsh environments.

The AD8421ARMZ-R7 is an excellent choice as a linear amplifier option to provide high-accuracy, low-noise signal buffer amplifiers. It is suitable for applications in instrumentation, op amps, buffer amps, low-side current sensing systems, audio line interface modules, and power measurement systems.