Overview
The AFE5808ZCF is a highly integrated analog front-end (AFE) solution designed by Texas Instruments specifically for ultrasound systems. It combines high performance with a compact size, making it suitable for both high-end and portable ultrasound systems. The device integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path, allowing users to optimize system performance by selecting various power/noise combinations.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 8 |
| Input Referred Noise | 0.63/0.7/0.9 nV/rtHz |
| Low Noise Amplifier (LNA) Gain | 24/18/12 dB |
| Linear Input Range | 0.25/0.5/1 V PP |
| Voltage Controlled Attenuator (VCAT) | 40 dB |
| Programmable Gain Amplifier (PGA) | 24/30 dB |
| Low-Pass Filter (LPF) Frequencies | 10, 15, 20, 30 MHz |
| Analog to Digital Converter (ADC) | 14-bit, 65 MSPS |
| Signal to Noise Ratio (SNR) | 77 dBFS at 65 MSPS |
| Output Type | LVDS |
| Power Consumption per Channel | 153 mW at 0.75 nV/rtHz, 65 MSPS |
| Package Type | 135-pin NFBGA (ZCF) |
| Operating Temperature Range | 0°C to 85°C |
Key Features
- Complete 8-channel analog front-end including LNA, VCAT, PGA, LPF, ADC, and CW mixer.
- Programmable gain low-noise amplifier (LNA) with 24/18/12 dB gain options.
- Ultra-low noise VCAT with 40 dB attenuation control range.
- Programmable gain amplifier (PGA) with 24/30 dB gain options.
- 3rd order linear phase low-pass filter (LPF) configurable at 10, 15, 20, or 30 MHz.
- High-performance 14-bit, 65 MSPS ADC with 77 dBFS SNR.
- LVDS outputs for flexible system integration.
- Low power passive mixer and low noise summing amplifier for on-chip CWD beamformer.
- 16 selectable phase-delays for each analog input signal.
- Unique 3rd and 5th order harmonic suppression filter to enhance CW sensitivity.
Applications
- Medical Ultrasound Imaging
- Nondestructive Evaluation Equipment
- High-end and portable ultrasound systems
Q & A
- What is the AFE5808ZCF primarily used for?
The AFE5808ZCF is primarily used for ultrasound systems, integrating both time-gain-control (TGC) imaging and continuous wave Doppler (CWD) paths. - How many channels does the AFE5808ZCF have?
The AFE5808ZCF has 8 channels. - What are the input referred noise levels of the AFE5808ZCF?
The input referred noise levels are 0.63/0.7/0.9 nV/rtHz. - What are the gain options for the Programmable Gain Amplifier (PGA)?
The PGA offers gain options of 24 dB and 30 dB. - What is the resolution and sampling rate of the ADC?
The ADC is a 14-bit converter with a sampling rate of 65 MSPS. - What type of outputs does the AFE5808ZCF provide?
The AFE5808ZCF provides LVDS outputs. - How much power does each channel consume at 65 MSPS?
Each channel consumes 153 mW at 0.75 nV/rtHz, 65 MSPS. - What is the operating temperature range of the AFE5808ZCF?
The operating temperature range is from 0°C to 85°C. - Is the AFE5808ZCF pin-to-pin compatible with other models?
Yes, it is pin-to-pin compatible with the AFE5807, AFE5803, and AFE5808A. - What package type does the AFE5808ZCF come in?
The AFE5808ZCF comes in a 135-pin NFBGA (ZCF) package.
