AD8639ARMZ

Voltage - Input Offset:	3µV
Base Part Number:	AD8639
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply, Single/Dual (±):	5 V ~ 16 V, ±2.5 V ~ 8 V
Current - Output / Channel:	37mA
Current - Supply:	1.25mA
Series:	--
Current - Input Bias:	1pA
Gain Bandwidth Product:	1.5MHz
Slew Rate:	2 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	2
Amplifier Type:	Zero-Drift
Part Status:	Active
Packaging:	Tube

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AD8639ARMZ application field and working principleThe AD8639ARMZ is a versatile linear amplifier. It is suitable for a wide range of applications in the fields of instrumentation, OP amps, buffer amps, and switching circuits.The AD8639ARMZ is designed to provide the highest possible linearity, drive strength, power efficiency, and power dissipation in high-precision instrumentation and buffer amplifier applications. It provides exceptional performance and accuracy at frequencies up to 900 MHz.The AD8639ARMZ is a low-power, high-speed buffered amplifier designed to provide linearity and power gain. It is specifically designed for applications where low distortion and low noise are required. The AD8639ARMZ consists of a single stage gain block that provides a gain of up to 10dB and a wide dynamic range. The amplifier also incorporates an output buffer amplifier with a full-rail-to-rail output swing. The amplifier can provide output current up to 25mA, making it suitable for driving loads up to the load rail.The AD8639ARMZ operates from a single power supply voltage of 3.3V to 5.5V and can be configured for single-ended or differential operation. The device features an input offset voltage of less than 0.5mV, common-mode rejection of more than 60 dB, and a low-noise input noise of less than 4.5nV/√Hz.The AD8639ARMZ is a versatile amplifier well-suited for many applications including precision measurements, medical instrumentation, ultrasound, ultrasound imaging, and ultrasound diagnostics. Its fast response time and low distortion make it an ideal choice for wideband signal processing. Additionally, it can be used as an output driver in external circuits.In terms of its working principle, the AD8639ARMZ amplifies an input signal by adjusting the voltage across a power transistor. The power transistor stores energy in the form of a magnetic field, which is converted into an output voltage by a transformer. The input voltage of the AD8639ARMZ is amplified and converted into an output voltage with low distortion and low noise. Furthermore, the device can be configured to operate in either single-ended or differential mode, allowing the user to specify the performance of the amplifier depending on the requirements.Overall, the AD8639ARMZ is a power-efficient, high-performance amplifier suitable for a wide range of applications. It operates from a single power supply voltage, features a low offset voltage, and provides good linearity and power gain. The output buffer amplifier ensures that the output voltage remains as close as possible to the supply rail, making it suitable for driving loads up to the supply rail. Additionally, it offers high performance in terms of noise and distortion, making it suitable for precision applications such as ultrasound and ultrasound imaging.

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