The AFE5804 is a complete analog front-end device specifically designed for ultrasound systems that require low power and small size.

The AFE5804 consists of eight channels, including a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), low-pass filter (LPF), and a 12-bit analog-to-digital converter (ADC) with low voltage differential signaling (LVDS) data outputs.

The LNA gain is set for 20dB gain and has excellent noise and signal handling capabilities, including fast overload recovery. VCA gain can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the AFE5804.

The PGA can be programmed for gains of 20dB, 25dB, 27dB, and 30dB. The internal low-pass filter can also be programmed to 12.5MHz or 17MHz.

The LVDS outputs of the ADC reduce the number of interface lines to an ASIC or FPGA, thereby enabling the high system integration densities desired for portable systems. The ADC can either be operated with internal or external references. The ADC also features a signal-to-noise ratio (SNR) enhancement mode that can be useful at high gains.

The AFE5804 is available in a 15mm × 9mm, 135-ball BGA package that is Pb-free (RoHS-compliant) and green. It is specified for operation from 0°C to +85°C.

• 8-Channel Complete Analog Front-End:
  • LNA, VCA, PGA, LPF, and ADC
• Mode Control for Power/Noise Optimization:
  • Low Noise (Full-Channel): 0.89nV/√Hz (TGC Mode I) 1.23nV/√Hz (TGC Mode II) 1.03nV/√Hz (PW Mode)
  • Ultra-Low Power:101mW/Channel (TGC Mode II) 65mW/Channel (CW Mode)
• Low-Noise Pre-Amp (LNA):
  • 0.75nV/√Hz
  • 20dB Fixed Gain
  • 280mVPP Linear Input Range
• Variable-Gain Amplifier:
  • Gain Control Range: 46dB
• PGA Gain Settings: 20dB, 25dB, 27dB, 30dB
• Low-Pass Filter:
  • Selectable BW: 12.5MHz, 17MHz
  • 2nd-Order, Bessel
• Gain Error: ±0.5dB
• Channel Matching: ±0.25dB
• Clamping
• Fast Overload Recovery: Two Clock Cycles
• 12-Bit Analog-to-Digital Converter:
  • 10MSPS to 50MSPS
  • 69dB SNR at 10MHz
  • Serial LVDS Interface
• Integrated CW Switch Matrix
• 15mm × 9mm, 135-BGA Package:
  • Pb-Free (RoHS-Compliant) and Green

• Number of input channels
• 8
• Active supply current (Typ) (mA)
• 123
• Supply voltage (Max) (V)
• 3.47
• Operating temperature range (C)
• 0 to 70
• Interface type
• Serial LVDS
• Features
• Analog Front End (AFE)

AFE5804的完整型号有：AFE5804ZCF、HPA01084ZCF，以下是这些产品的关键参数及官网采购报价：

AFE5804ZCF，工作温度：0 to 70，封装：NFBGA (ZCF)-135，包装数量MPQ：160个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：SNAGCU，TI官网AFE5804ZCF的批量USD价格：43.27（1000+）

HPA01084ZCF，工作温度：0 to 70，封装：NFBGA (ZCF)-135，包装数量MPQ：160个，MSL 等级/回流焊峰值温度：-，引脚镀层/焊球材料：-，TI官网HPA01084ZCF的批量USD价格：43.27（1000+）

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