MAX409BESA+

Current - Input Bias:	0.1pA
Base Part Number:	MAX409
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	2.5 V ~ 10 V
Current - Supply:	1µA
Voltage - Input Offset:	750µV
Series:	--
Gain Bandwidth Product:	150kHz
Slew Rate:	0.08 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tube

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The MAX409BESA+ is an ultra-low noise, precision, dual-supply, instrumentation amplifier. It is designed to operate on the lowest possible power, while delivering an exceptional combination of very low noise, high common-mode rejection (CMRR), and high-input impedance and low offset voltage. This amplifier is ideal for use in precision medical and medical instrumentation applications including accelerometers and pressure transducers.The MAX409BESA+ features a standard pinout configuration, so it is easy to incorporate into existing designs. The amplifier has a gain range of 0.3 dB to 10000 dB, and the pinout options allow for different gain settings. The amplifier can be powered by a single or dual supply, with an operating voltage range of 3.0V to 16V, and a maximum supply voltage of 18V.The amplifier current consumption is extremely low, with a 5mA supply current when operated on a 5V supply. It also offers an excellent frequency response, with a -3dB cutoff frequency of 600 kHz and a -1dB cutoff frequency of 730 kHz. This allows it to accurately capture fast signals with minimal distortion and noise.The MAX409BESA+ has an exceptionally low voltage noise of 9.2 nV/√Hz and a wide bandwidth of 2 MHz. This amplifier has a 0.3 dB gain ripple and excellent CMRR, reaching as high as 94dB at 10 kHz and 80 dB at 50 kHz. The low input bias current and low input offset current make the amplifier especially suitable for use in precision medical and medical instrumentation applications.The low input-offset voltage of 2.25mV and low input-offset drift of 2.4 µV/°C enable high accuracy measurements with the amplifier. The MAX409BESA+ also features a low gain-error voltage of 0.5% at 10 kHz, low open-loop gain of 65 dB, and excellent output-loading tolerance of up to 10 µA. This allows it to drive high-capacitance loads without significant loss of output accuracy.Finally, the MAX409BESA+ has an adjustable input offset voltage, using two external resistors. This allows users to fine-tune the input offset voltage of the amplifier and ensure it meets the required specifications.Overall, the MAX409BESA+ is an excellent choice for a wide range of applications requiring low-voltage noise, high CMRR, and input offset. The combination of flexibility and low current consumption makes it ideal for medical and medical instrumentation applications, and its excellent frequency response and overload tolerance make it suitable for a wide range of signal-conditioning applications as well.

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