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MAX4805 - Low-Noise Operational Amplifiers

General Description

The MAX4805/MAX4805A are octal high-voltage-protected operational amplifiers.

These devices are a fully integrated, very compact solution for in-probe amplification of echo signals coming from transducers in an ultrasound system.

Key Features

  • 44MHz (typ) -3dB bandwidth and very low voltage and current noise, ensuring excellent noise figure. The output signals of these operational amplifiers are limited with diodes in an antiparallel configuration to GND. The MAX4805/MAX4805A provide HV protection for inputs and outputs of the operational amplifiers. The operational amplifiers inputs are protected by an exter- nal HV capacitor. An Finutengrcattedioanutaoml aDticiahgighr-avomltasge switch protects the output of the amplifier from HV bu.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX4805A Low-Noise Operational Amplifiers
MAX4834 250mA LDO Linear Regulators
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MAX483E RS-485/RS-422 Transceivers
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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MAX4805/MAX4805A Octal High-Voltage-Protected, Low-Power, Low-Noise Operational Amplifiers General Description The MAX4805/MAX4805A are octal high-voltage-protected operational amplifiers. These devices are a fully integrated, very compact solution for in-probe amplification of echo signals coming from transducers in an ultrasound system. The use of in-probe buffering improves system signal-to-noise ratio (SNR) for transducers featuring high-output impedance. This results in greater penetration depth and sensitivity. The MAX4805/MAX4805A can be adopted in ultrasound probes without any change in the system (scanner machine).