MAX4805ACTJ+ Description

The MAX4805ACTJ+ is an octal high-voltage-protected operational amplifier. The MAX4805ACTJ+ is 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 the system signal-to-noise ratio (SNR) for transducers featuring high-output impedance. This results in greater penetration depth and sensitivity. The MAX4805ACTJ+ can be adopted in ultrasound probes without any change in the system (scanner machine). Typical applications include high-impedance piezoelectric transducers(PZT) and capacitive micromachined ultrasonic transducers (CMUT) in-probe buffering and amplification.

MAX4805ACTJ+ Features

High Density/8 Channels Per Package

I/O Protection for TX Burst Up to ±100V

Very Fast Recovery Time After TX Burst 1.5µs (typ)

OVP for Signals Greater Than ±2.7V (typ)

Extremely Low Power Dissipation 8mW/ch (typ)

65I (typ) Low-Signal Output Impedance

44MHz -3dB Bandwidth (typ)

Voltage Gain 6dB (MAX4805) (typ), 9dB(MAX4805A) (typ)

MAX4805ACTJ+ Applications

Ultrasound Medical Imaging, CMUT Probes

Ultrasound Medical Imaging, PZT HF Probes

Ultrasound Imaging, PZT NDT Probes