AD629AN

Voltage - Input Offset:	200µV
Base Part Number:	AD629
Supplier Device Package:	8-PDIP
Package / Case:	8-DIP (0.300", 7.62mm)
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Current - Output / Channel:	25mA
Current - Supply:	900µA
Series:	--
-3db Bandwidth:	500kHz
Slew Rate:	2.1 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Differential
Part Status:	Obsolete
Packaging:	Tube

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AD629AN Application Field and Working Principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The AD629AN is a single-channel, low-noise, instrumentation amplifier (INA) designed for use in medical, industrial and automotive applications. The device operates over a wide supply voltage range of 3 V to 36 V, and is capable of delivering up to 10 mA of output current. This amplifier is also useful in applications such as signal conditioning and powering transducers. It is unity gain buffered and provides excellent power supply rejection ratio (PSRR).The working principle of the AD629AN is based on multiple current feedback architecture (MCFA), which makes it an ideal choice for noise-sensitive applications. It provides a high gain of 110 dB and offers low input offset voltage of up to 0.3 V/V. The device comes with an adjustable offset current and programmable gain scaling.The low noise performance of the AD629AN makes it suitable for applications requiring low noise such as ECG and EEG recordings, ultrasound imaging, and biomedical research. The wide supply voltage range makes it ideal for a variety of applications. The amplifier is also able to operate under low supply voltage conditions, making it suitable for battery powered devices.The AD629AN has an integrated thermal protection feature that prevents the device from overheating by automatically shutting down when the die temperature reaches a certain threshold. The thermal protection is an important feature that not only increases the device\'s reliability but also reduces power consumption.The amplifier is fabricated using a combination of CMOS, bipolar, and resistive devices. Its input stage consists of a differential amplifier, which provides high input impedance and low noise performance. The gain stage consists of a long tailed pair with the output being buffered by a unity gain buffer.The AD629AN offers many other features, including improved power supply rejection, reduced input bias current, accurate gain scaling, and fast transient performance. The device has a frequency response of 1.5 MHz (-3 dB) and it is designed to work with low voltage, low power, and low noise requirements.Overall, the AD629AN is an excellent choice for medical, industrial, and automotive applications requiring low noise performance, wide supply voltage range, and thermal protection. Its low input offset voltage, wide bandwidth, and programmable gain scaling make it an ideal solution for noise-sensitive applications.

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