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Product details

Parameters

Number of input channels 8 Active supply current (Typ) (mA) 146 Supply voltage (Max) (V) 3.47 Operating temperature range (C) 0 to 70 Interface type Serial LVDS Features Analog Front End (AFE) open-in-new Find other Ultrasound AFEs

Package | Pins | Size

NFBGA (ZCF) 135 135 mm² 9 x 15 open-in-new Find other Ultrasound AFEs

Features

  • 8-Channel Complete Analog Front-End:
    • LNA, VCA, PGA, LPF, and ADC
  • Ultra-Low, Full-Channel Noise:
    • 0.85nV/√Hz (TGC)
    • 1.1nV/√Hz (CW)
  • Low Power:
    • 122mW/Channel (40MSPS)
    • 74mW/Channel (CW Mode)
  • Low-Noise Pre-Amp (LNA):
    • 0.75nV/√Hz
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable-Gain Amplifier:
    • Gain Control Range: 46dB
  • PGA Gain Settings: 20dB, 25dB, 27dB, 30dB
  • Low-Pass Filter:
    • Selectable BW: 10MHz, 15MHz
    • 2nd-Order
  • Gain Error: ±0.5dB
  • Channel Matching: ±0.25dB
  • Distortion, HD2: –65dBFS at 5MHz
  • Clamping Control
  • Fast Overload Recovery: Two Clock Cycles
  • 12-Bit Analog-to-Digital Converter:
    • 10MSPS to 50MSPS
    • 69.5dB SNR at 10MHz
    • Serial LVDS Interface
  • Integrated CW Switch Matrix
  • 15mm × 9mm, 135-BGA Package:
    • Pb-Free (RoHS-Compliant) and Green
  • APPLICATIONS
    • Medical Imaging, Ultrasound
      • Portable Systems

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open-in-new Find other Ultrasound AFEs

Description

The AFE5805 is a complete analog front-end device specifically designed for ultrasound systems that require low power and small size.

The AFE5805 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 AFE5805.

The PGA can be programmed for gains of 20dB, 25dB, 27dB, and 30dB. The internal low-pass filter can also be programmed to 10MHz or 15MHz.

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 AFE5805 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 +70°C.

open-in-new Find other Ultrasound AFEs
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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet Fully-Integrated, 8-Ch Analog Front-End for Ultrasound 0.85nV/√Hz, 12-Bit, 122mW datasheet (Rev. D) Mar. 02, 2010
Technical articles Offset correction improves the next generation of heart-rate smart watches Aug. 24, 2015
User guides AFE5805EVM User's Guide (Rev. C) Mar. 05, 2015
Technical articles JESD204B: Is it for you? Mar. 14, 2014
Technical articles A new way to illuminate the human condition Dec. 30, 2013
Technical articles Oximeter signaling: There’s more than meets the eye Dec. 04, 2013
User guides TSW1250EVM: High-Speed LVDS Deserializer and Analysis System (Rev. F) Jan. 20, 2012
More literature Ultrasound flyer (Rev. A) Sep. 22, 2011
More literature Ultrasound flyer Mar. 15, 2011

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
Description

The AFE5805EVM provides a convenient platform to evaluate the AFE5805. The AFE5805 is a complete analog front-end device designed for ultrasound systems. It consists of eight-channels, including a low-noise amplifier (LNA), voltage controlled attenuator (VCA), programmable gain amplifier (PGA (...)

Features
•Characterizes the AFE5805
•Supports CW functionalities test
•Provides 8 channel low-voltage differential signal (LVDS) outputs from the ADC
•Compatible with the standard TI LVDS deserializer TSW1400EVM
•Communicates with a personal computer (PC) through a USB interface
•Configurable with RS-232 (...)
EVALUATION BOARDS Download
document-generic User guide
Description

Note: Consider using the TSW1400EVM for LVDS and CMOS ADC evaluation. This lower cost platform replaces the TSW1200 and TSW1250 and supports all the old and new ADC interfaces. A low cost TSW1405EVM is available for LVDS interfaces with a 64ksample memory limit.

The Texas Instruments TSW1250 EVM is (...)

Features
  • Hardware and software effectively evaluates high-speed ADC with LVDS output
  • Xilinx 4 LX25 FPGA
  • 64k capture depth with USB transfer
EVALUATION BOARDS Download
document-generic User guide
99
Description

The TSW1405EVM is a low cost data capture circuit board used to evaluate some of Texas Instruments’ (TI) most popular high speed analog-to-digital converters (ADC).

 

The TSW1405EVM supports a high speed LVDS bus capable of providing 16-bit samples at 1.0 GSPS. The platform supports a 64k sample depth (...)

Features
  • Simple 16-bit waveform capture from many of TI’s high speed ADC EVM’s
  • Supports 64k sample depth at up to 1.0 GSPS LVDS I/O rates
  • LatticeECP3 high speed mini FPGA
  • Analyzes up to 8 channels concurrently
  • Single mini USB cable for power and data
  • Utilizes an intuitive/easy-to-use GUI package
  • Industry’s (...)
  • Software development

    SUPPORT SOFTWARE Download
    SBOC259.ZIP (29637 KB)

    Design tools & simulation

    SIMULATION MODELS Download
    SLOC157.ZIP (363 KB) - IBIS Model
    SIMULATION TOOLS Download
    PSpice® for TI design and simulation tool
    PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
    Features
    • Leverages Cadence PSpice Technology
    • Preinstalled library with a suite of digital models to enable worst-case timing analysis
    • Dynamic updates ensure you have access to most current device models
    • Optimized for simulation speed without loss of accuracy
    • Supports simultaneous analysis of multiple products
    • (...)

    CAD/CAE symbols

    Package Pins Download
    NFBGA (ZCF) 135 View options

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