MAX2037

www.DataSheet4U.com 19-0586; Rev 0; 10/06 KIT ATION EVALU E L B AVAILA Ultrasound Variable-Gain Amplifier General Description Features ♦ 8-Channel Configuration ♦ High Integration for Ultrasound Imaging Applications ♦ Pin Compatible with the MAX2038 Ultrasound VGA Plus CW Doppler Beamformer ♦ Maximum Gain, Gain Range, and Output-Referred Noise Optimized for Interfacing with 12-Bit ADCs Maximum Gain of 29.5dB Total Gain Range of 42dB 22nV/√Hz Ultra-Low Output-Referred Noise at 5MHz Pin-for-Pin 10-Bit Compatibility Supported By MAX2035/MAX2036 ♦ ±0.25dB Absolute Gain Error ♦ Switchable Output VGA Clamp Eliminating ADC Overdrive ♦ Fully Differential VGA Outputs for Direct ADC Drive ♦ Variable Gain Range Achieves 42dB Dynamic Range ♦ -70dBc HD2 at VOUT = 1.5VP-P and fIN = 5MHz ♦ Two-Tone Ultrasound-Specific* IMD3 of -52dBc at VOUT = 1.5VP-P and fIN = 5MHz ♦ 120mW Consumption Per Channel *See the Ultrasound-Specific IMD3 Specification in the Applications Information section. MAX2037 The MAX2037 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 42dB. In addition, the VGAs offer very low output-referred noise performance suitable for interfacing with 12-bit ADCs. The MAX2037 VGA is optimized for less than ±0.25dB absolute gain error to ensure minimal channel-to-chann...