Texas Instruments AFE5808A 8-Channel Ultrasound Analog Front End
Texas Instruments AFE5808A 8-Channel Ultrasound Analog Front End is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. AFE5808A 8-Channel AFE integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. This device also enables users to select one of various power/noise combinations to optimize system performance. The Texas Instruments AFE5808A is a suitable ultrasound AFE solution for portable and high-end systems. It contains eight channels of a voltage-controlled amplifier (VCA), 14/12-bit analog-to-digital converter, and CW mixer. The VCA includes a low noise amplifier (LNA), voltage-controlled attenuator (VCAT), a programmable gain amplifier, and a low-pass filter.
Features
- 8-Channel Complete Analog Front-End
- LNA, VCAT, PGA, LPF, ADC, and CW Mixer
- Programmable Gain Low-Noise Amplifier (LNA)
- 24/18/12dB Gain
- 0.25/0.5/1 VPP Linear Input Range
- 0.63/0.7/0.9nV/rtHz Input Referred Noise
- Programmable Active Termination
- 40dB Low Noise Voltage Controlled Attenuator (VCAT)
- 24/30dB Programmable Gain Amplifier (PGA)
- 3rd Order Linear Phase Low-Pass Filter (LPF)
- 10, 15, 20, 30MHz
- 14-bit Analog to Digital Converter (ADC)
- 77dBFS SNR at 65MSPS
- LVDS Outputs
- Noise/Power Optimizations (Full Chain)
- 158mW/CH at 0.75nV/rtHz, 65MSPS
- 101mW/CH at 1.1nV/rtHz, 40MSPS
- 80mW/CH at CW Mode
- Excellent Device-to-Device Gain Matching
- ±0.5dB (Typical) and ±0.9dB (Max)
Applications
- Medical ultrasound imaging
- Nondestructive evaluation equipment