AFE5803
- 8-Channel Complete Analog Front-End
- LNA, VCAT, PGA, LPF, ADC
- Programmable Gain Low-Noise Amplifier (LNA)
- 24/18/12 dB Gain
- 0.25/0.5/1 VPP Linear Input Range
- 0.63/0.7/0.9 nV/rtHz Input Referred Noise
- Programmable Active Termination
- 40 dB Low Noise Voltage Controlled Attenuator (VCAT)
- 24/30 dB Programmable Gain Amplifier (PGA)
- 3rd Order Linear Phase Low-Pass Filter (LPF)
- 10, 15, 20, 30 MHz
- 14-bit Analog to Digital Converter (ADC)
- 77 dBFS SNR at 65 MSPS
- LVDS Outputs
- Noise/Power Optimizations (Full Chain)
- 158 mW/CH at 0.75 nV/rtHz, 65 MSPS
- 101 mW/CH at 1.1 nV/rtHz, 40 MSPS
- Excellent Device-to-Device Gain Matching
- ±0.5 dB (Typical) and ±0.9 dB (Max)
- Low Harmonic Distortion
- Fast and Consistent Overload Recovery
- Small Package: 15 mm x 9 mm, 135-BGA
The AFE5803 is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5803 integrates a complete time-gain-control (TGC) imaging path. It also enables users to select one of various power/noise combinations to optimize system performance. Therefore, the AFE5803 is a suitable ultrasound analog front end solution for portable systems.
The AFE5803 contains eight channels of voltage controlled amplifier (VCA), 14/12-bit Analog-to-Digital Converter (ADC). The VCA includes Low noise Amplifier (LNA), Voltage controlled Attenuator (VCAT), Programmable Gain Amplifier (PGA), and Low-Pass Filter (LPF). The LNA gain is programmable to support 250 mVPP to 1 VPP input signals. Programmable active termination is also supported by the LNA. The ultra-low noise VCAT provides an attenuation control range of 40 dB and improves overall low gain SNR which benefits harmonic imaging and near field imaging. The PGA provides gain options of 24 dB and 30 dB. Before the ADC, a LPF can be configured as 10 MHz, 15 MHz, 20 MHz or 30 MHz to support ultrasound applications with different frequencies. The high-performance 14bit/65 MSPS ADC in the AFE5803 achieves 77dBFS SNR. It ensures excellent SNR at low chain gain. The ADC’s LVDS outputs enable flexible system integration desired for miniaturized systems.
The AFE5803 is available in a 15mm × 9mm, 135-pin BGA package and it is specified for operation from 0°C to 85°C. It is also pin-to-pin compatible to the AFE5807, AFE5808 and AFE5808A.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | Fully Integrated, 8-Channel Ultrasound Analog Front End datasheet (Rev. A) | 2012/1/18 |
設計與開發
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| NFBGA (ZCF) | 135 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。