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AFE5803ZCF Datasheet(PDF) 1 Page - Texas Instruments |
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AFE5803ZCF Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 53 page  AFE5803 www.ti.com SLOS763A – JANUARY 2012 – REVISED JANUARY 2012 Fully Integrated, 8-Channel Ultrasound Analog Front End, 0.75 nV/rtHz, 14/12-Bit, 65 MSPS, 158 mW/CH Check for Samples: AFE5803 1 FEATURES DESCRIPTION The AFE5803 is a highly integrated Analog Front-End • 8-Channel Complete Analog Front-End (AFE) solution specifically designed for ultrasound – LNA, VCAT, PGA, LPF, ADC systems in which high performance and small size • Programmable Gain Low-Noise Amplifier are required. The AFE5803 integrates a complete (LNA) time-gain-control (TGC) imaging path. It also enables users to select one of various power/noise – 24/18/12 dB Gain combinations to optimize system performance. – 0.25/0.5/1 VPP Linear Input Range Therefore, the AFE5803 is a suitable ultrasound – 0.63/0.7/0.9 nV/rtHz Input Referred Noise analog front end solution for portable systems. – Programmable Active Termination The AFE5803 contains eight channels of voltage • 40 dB Low Noise Voltage Controlled controlled amplifier (VCA), 14/12-bit Analog-to-Digital Converter (ADC). The VCA includes Low noise Attenuator (VCAT) Amplifier (LNA), Voltage controlled Attenuator • 24/30 dB Programmable Gain Amplifier (PGA) (VCAT), Programmable Gain Amplifier (PGA), and • 3rd Order Linear Phase Low-Pass Filter (LPF) Low-Pass Filter (LPF). The LNA gain is – 10, 15, 20, 30 MHz programmable to support 250 mVPP to 1 VPP input signals. Programmable active termination is also • 14-bit Analog to Digital Converter (ADC) supported by the LNA. The ultra-low noise VCAT – 77 dBFS SNR at 65 MSPS provides an attenuation control range of 40 dB and – LVDS Outputs improves overall low gain SNR which benefits harmonic imaging and near field imaging. The PGA • Noise/Power Optimizations (Full Chain) provides gain options of 24 dB and 30 dB. Before the – 158 mW/CH at 0.75 nV/rtHz, 65 MSPS ADC, a LPF can be configured as 10 MHz, 15 MHz, – 101 mW/CH at 1.1 nV/rtHz, 40 MSPS 20 MHz or 30 MHz to support ultrasound applications with different frequencies. The high-performance • Excellent Device-to-Device Gain Matching 14bit/65 MSPS ADC in the AFE5803 achieves – ±0.5 dB (Typical) and ±0.9 dB (Max) 77dBFS SNR. It ensures excellent SNR at low chain • Low Harmonic Distortion gain. The ADC ’s LVDS outputs enable flexible system integration desired for miniaturized systems. • Fast and Consistent Overload Recovery • Small Package: 15 mm x 9 mm, 135-BGA 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 APPLICATIONS AFE5807, AFE5808 and AFE5808A. • Medical Ultrasound Imaging • Nondestructive Evaluation Equipments 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2012, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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