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MAX2035

Maxim Integrated Products
Part Number MAX2035
Manufacturer Maxim Integrated Products
Description Ultrasound Variable Gain Amplifier
Published Dec 5, 2006
Detailed Description www.DataSheet4U.com 19-0630; Rev 0; 10/06 Ultrasound Variable-Gain Amplifier General Description The MAX2035 8-channel...
Datasheet PDF File MAX2035 PDF File

MAX2035
MAX2035

Overview
www.
DataSheet4U.
com 19-0630; Rev 0; 10/06 Ultrasound Variable-Gain Amplifier General Description The MAX2035 8-channel variable-gain amplifier (VGA) is designed for high linearity, high dynamic range, and low-noise performance targeting ultrasound imaging and Doppler applications.
Each amplifier features differential inputs and outputs and a total gain range of typically 50dB.
In addition, the VGAs offer very low output-referred noise performance suitable for interfacing with 10-bit ADCs.
The MAX2035 VGA is optimized for less than ±0.
5dB absolute gain error to ensure minimal channel-to-channel ultrasound beamforming focus error.
The device’s differential outputs are designed to directly drive ultrasound ADCs through an external passive anti-aliasing filter.
A switchable clamp is also provided at each amplifier’s outputs to limit the output signals, thereby preventing ADC overdrive or saturation.
Dynamic performance of the device is optimized to reduce distortion to support second-harmonic imaging.
The device achieves a second-harmonic distortion specification of -62dBc at VOUT = 1.
5VP-P and fIN = 5MHz, and an ultrasound-specific* two-tone third-order intermodulation distortion specification of -52dBc at VOUT = 1.
5VP-P and fIN = 5MHz.
The MAX2035 operates from a +5.
0V power supply, consuming only 127mW/channel.
The device is available in a 100-pin TQFP package with an exposed paddle.
Electrical performance is guaranteed over a 0 °C to +70°C temperature range.
Features o 8-Channel Configuration o High Integration for Ultrasound Imaging Applications o Pin Compatible with the MAX2036 Ultrasound VGA Plus CW Doppler Beamformer o Maximum Gain, Gain Range, and Output-Referred Noise Optimized for Interfacing with 10-Bit ADCs Maximum Gain of 39.
5dB Total Gain Range of 50dB 60nV/√Hz Ultra-Low Output-Referred Noise at 5MHz Pin-for-Pin 12-Bit Compatibility Supported By MAX2037/MAX2038 o ±0.
5dB Absolute Gain Error o Switchable Output VGA Clamp Eliminating ADC Overdrive o Fully...


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