MAX191BENG+ Сбор данных - Аналого-цифровые преобразователи (АЦП) от Maxim Integrated

The MAX2078 octal-channel ultrasound front-end is a fully integrated bipolar, high-density octal-channel ultra sound receiver optimized for low cost, high-channel count, high-performance portable and cart-based ultra sound systems.
The easy-to-use IC allows the user to achieve high-end 2D, PW, and CW Doppler (CWD) imaging capability using substantially less space and power.
The highly compact imaging receiver lineup, including low-noise amplifier (LNA), variable-gain amplifier (VGA), and anti-alias filter (AAF), achieves an ultra-low 2.4dB noise figure at RS = RIN = 200Ω at a very low 64.8mW per channel power dissipation.
The full imaging receiver channel has been optimized for second-harmonic imaging with -64dBFS second-harmonic distortion performance with a 1VP-P 5MHz output signal.
The bipolar front-end has also been optimized for excellent low-velocity PW and color-flow Doppler sensitivity with an exceptional near-carrier SNR of 140dBc/Hz at 1kHz offset from a 5MHz 1VP-P output clutter signal.
Features
♦ 8 Full Channels of LNA, VGA, AAF, and CWD Mixers in a Small, 10mm x 10mm TQFN Package
♦ Pin Compatible with MAX2077 with LNA, VGA, and AAF in 10mm x 10mm TQFN Variant
♦ Ultra-Low Full-Channel Noise Figure of 2.4dB at RIN = RS = 200Ω
♦ Low Output-Referred Noise of 23nV/√Hz at 5MHz, 20dB Gain, Yielding a Broadband SNR of 68dB
*
* for Excellent Second-Harmonic Imaging
♦ High Near-Carrier SNR of 140dBc/Hz at 1kHz Offset from a 5MHz, 1VP-P Output Signal, and 20dB of Gain for Excellent Low-Velocity PW and Color-Flow Doppler Sensitivity in a High-Clutter Environment
♦ Ultra-Low-Power 64.8mW per Full-Channel (LNA, VGA, and AAF) Normal Imaging Mode (234mW per Channel in CWD Mode)
♦ Selectable Active Input-Impedance Matching of 50Ω, 100Ω, 200Ω, and 1kΩ
♦ Wide Input-Voltage Range of 330mVP-P in High LNA Gain Mode and 550mVP-P in Low LNA Gain Mode
♦ Integrated Selectable 3-Pole 9MHz, 10MHz, 15MHz, and 18MHz Butterworth AAF
♦ Fast-Recovery, Low-Power Modes (< 2µs)
♦ Fully Integrated, High Dynamic Range CWD Beamformer with Near-Carrier SNR of 154dBc/Hz at 1kHz Offset from a 1.25MHz, 200mVP-P Input Clutter SignalApplications Medical Ultrasound Imaging Sonar