The MAX2081 is a fully integrated octal ultrasound receiver optimized for high-channel-count, high-performance portable and cart-based ultrasound systems. The integrated receiver allows the user to achieve “high-end” 2D and Doppler imaging using substantially less space and power.
The MAX2081 includes a transmit/receive (T/R) switch; LNA input-coupling and feedback capacitors; and LNA, VGA, AAF, ADC, and digital HPF. It achieves an ultra-low 2.8dB noise figure at RS = RIN = 200Ω with a very low 130mW per channel power dissipation at 50Msps. The full receive channel has been optimized for second-harmonic imaging with -60dBFS second-harmonic distortion performance at fIN = 5MHz over the full TGC range.
Dynamic range has also been optimized for exceptional pulsed and color-flow Doppler performance under high-clutter conditions. The full receive channel exhibits an exceptional 76.2dBFS SNR at 5MHz with a 2MHz bandwidth. The bipolar front-end and CMOS ADC have also been optimized for an exceptionally low near-carrier modulation noise of 137dBc/Hz at 1kHz offset from a 5MHz tone for excellent low-velocity Doppler sensitivity.
The MAX2081 also includes an octal CWD beamformer for a full Doppler solution. Separate mixers for each channel are made available for optimal CWD sensitivity. The MAX2081 octal ultrasound front-end is available in a small 10mm x 16mm BGA package and is specified over a 0°C to +70°C temperature range.
产品关键特性
- Minimizes PCB Area and Design Cost
- 8 Full Channels of LNA, VGA, AAF, 12-Bit ADC, Digital HPF, CWD Mixer Beamformer, and T/R Switch in a Small, 10mm × 16mm CTBGA Package
- Improves System Sensitivity
- Ultra-Low Full-Channel Noise Figure of 2.8dB at RS = RIN = 200Ω
- Improves System Dynamic Range
- 76.2dBFS Image Path SNR Over 2MHz Bandwidth at fRF = 5MHz
- 137dBFS/Hz Image Path SNR at 1kHz Offset from fRF = 5MHz
- Consumes Less Power
- Ultra-Low Power of Only 130mW per Full Channel in Imaging Mode at 50Msps
- Selectable Active Input Impedance Matching of 50Ω, 100Ω, 200Ω, and 1kΩ
- Programmable VGA Output Clamp
- Integrated Selectable 3-Pole 9MHz, 10MHz, 15MHz, and 18MHz Butterworth Anti-Alias Filter
- Programmable, Digital Highpass, 2-Pole Filter
- Serial LVDS Digital Outputs
- Fast Recovery Low-Power Modes (< 2µs)
- Separate Channel I/Q CWD Mixers for Improved Dynamic Range and Sensitivity
| 应用与使用范围
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芯片订购型号
| 订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
| MAX2081CXP+ | 未来产品 | CSBGAHYBRID；228引脚；CSBGA；封装信息 | -40°C至+85°C | 参考数据资料 |
| MAX2081DEVBRD# | 未来产品 | KIT；封装信息 | 0°C至+70°C | 参考数据资料 |
功能接近器件
| MAX2077 | 八通道超声前端 |
| MAX2078 | 八通道超声前端，提供CW多普勒混频器 |
| MAX2079 | 低功耗、高性能、完全集成的八通道超声接收器(8路LNA、VGA、AAF、ADC和CWD波束成形器) |
| MAX2082 | Octal Ultrasound Transceiver with Integrated AFE, Pulser, T/R Switch, and Coupling Capacitors |
