AD604ARZ-RL

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The AD604ARZ-RL is an integrated circuit (IC) from the Linear Instrumentation, OP Amps Buffer Amps series, manufactured by Analog Devices. It is a very low noise amplifier with high input impedance, suitable for low level signal conditioning or sensor interface applications.

The amplifier is designed with a unity gain bandwidth of 40 MHz, a differential gain of 0.002%, a differential phase of 0.001°, and a noise figure of 5.2 nV/√Hz, making it suitable for a wide range of signal conditioning and sensor applications. In addition to this, the amplifier has a high common mode rejection ratio (CMRR) of over 130 dB, which helps to reject signals from other sources and reduce noise in the signal.

The AD604ARZ-RL provides a high input impedance of 200 kΩ, which allows it to measure very small signals without the need for additional parts or external components. The amplifier also features a maximum supply voltage of ±18 V, allowing it to be used in most power supply ranges.

The AD604ARZ-RL can be used in a wide range of signal conditioning applications, such as amplifying small signals from pressure, temperature and chemical sensors, or from other low-level sources. The amplifier is also suitable for use in signal conditioning and in measuring analog to digital converters (ADCs), as well as in medical ultrasound, ultrasound imaging and digital signal processing (DSP) applications.

The working principle of the AD604ARZ-RL is that of a differential amplifier, which amplifies the difference between two input signals. The amplifier has two differential pair transistors, connected between an input and an output, with the respective transistors sharing the same current source. The inputs are connected to the transistors, and the transistor pairs act as a differential amplifier, amplifying the difference between the two input signals.

The output voltage is proportional to the gain of the amplifier, which is adjustable and can be set through an external resistor. The amplifier also has a number of features, such as input offset voltage of 6.5 mV, and a maximum output voltage of 21 V, which can be further adjusted through an external resister.

The AD604ARZ-RL from Analog Devices is a versatile and reliable integrated circuit, ideal for low level signal conditioning and sensor interface applications. With a wide range of features, it is suitable for a variety of applications, such as signal conditioning, medical ultrasound, and analog-to-digital converters. The amplifier has a high input impedance and a low noise figure, which makes it suitable for measuring small signals without additional parts or external components. In addition to this, the amplifier has a high common mode rejection ratio, higher than most other amplifiers in its class.

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