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Product details

Parameters

Number of input channels 16 Active supply current (Typ) (mA) 20 Supply voltage (Max) (V) 3.3 Operating temperature range (C) -40 to 85 Interface type LVDS Features Analog Front End (AFE) open-in-new Find other Ultrasound AFEs

Package | Pins | Size

NFBGA (ZAV) 289 225 mm² 15 x 15 open-in-new Find other Ultrasound AFEs

Features

  • 16-Channel, AFE for Ultrasound Applications:
    • Input Attenuator, LNA, LPF, ADC, and
      CW Mixer
    • Optimized Signal Chains for TGC and CW Modes
    • Digital Time Gain Compensation (DTGC)
    • Total Gain Range: 6 dB to 45 dB
    • Linear Input Range: 1 VPP
  • Input Attenuator With DTGC:
    • 8-dB to 0-dB Attenuation with 0.125-dB Step
    • Supports Matched Impedance for:
      • 50-Ω to 800-Ω Source Impedance
  • Low-Noise Amplifier (LNA) With DTGC:
    • 14-dB to 45-dB Gain with 0.125-dB Step
    • Low Input Current Noise: 1.2 pA/√Hz
  • 3rd-Order, Linear-Phase, Low-Pass Filter (LPF):
    • 10 MHz, 15 MHz, 20 MHz, and 25 MHz
  • Analog-to-Digital Converter (ADC) With Programmable Resolution:
    • 14-Bit ADC: 75-dBFS Idle Channel SNR at
      65 MSPS
    • 12-Bit ADC: 72-dBFS Idle Channel SNR at
      80 MSPS
  • LVDS Interface With a Maximum Speed Up to
    1 GBPS
  • Optimized for Noise and Power:
    • 90 mW/Ch at 1 nV/√Hz, 65 MSPS, TGC Mode
    • 55 mW/Ch at 1.45 nV/√Hz, 40 MSPS,
      TGC Mode
    • 59 mW/Ch, CW Mode
  • Excellent Device-to-Device Gain Matching:
    • ±0.5 dB (Typical)
  • Low Harmonic Distortion: –60-dBc Level
  • Fast and Consistent Overload Recovery
  • Continuous Wave (CW) Path with:
    • Passive Mixer
    • Low Close-In Phase Noise of –148 dBc/Hz
      at 1-kHz frequency
    • Phase Resolution: λ / 16
    • Supports 16X, 8X, 4X, and 1X CW Clocks
    • 12-dB Suppression of 3rd and 5th Harmonics
  • Small Package: 15-mm × 15-mm NFBGA-289

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open-in-new Find other Ultrasound AFEs

Description

The AFE5816 is a highly-integrated, analog front-end (AFE) solution specifically designed for ultrasound systems where high performance, low power, and small size are required.

The AFE5816 is an integrated analog front-end (AFE) optimized for medical ultrasound application. The AFE5816 is a multichip module (MCM) device with two dies: VCA and ADC_CONV. Each die has total of 16 channels.

Each channel in the VCA die can be configured in two modes: time gain compensation (TGC) mode and continuous wave (CW) mode. In TGC mode, each channel includes an input attenuator (ATTEN), a low-noise amplifier (LNA) with variable-gain, and a third-order, low-pass filter (LPF). The attenuator supports an attenuation range of 8 dB to 0 dB, and the LNA supports gain ranges from 14 dB to 45 dB. The LPF cutoff frequency can be configured at 10 MHz, 15 MHz, 20 MHz, or 25 MHz to support ultrasound applications with different frequencies. In CW mode, each channel includes an LNA with a fixed gain of 18 dB, and a low-power passive mixer with 16 selectable phase delays. Different phase delays can be applied to each analog input signal to perform an on-chip beamforming operation. A harmonic filter in the CW mixer suppresses the third and fifth harmonic to enhance the sensitivity of the CW Doppler measurement. CW mode supports three clock modes: 16X, 8X, and 4X.

Each channel of the ADC_CONV die has a high-performance analog-to-digital converter (ADC) with a programmable resolution of 14 bits or 12 bits. The ADC achieves 75-dBFS signal-to-noise ratio (SNR) in 14-bit mode, and 72-dBFS SNR in 12-bit mode. This ADC provides excellent SNR at low-channel gain. The devices operate at maximum speeds of 65 MSPS and 80 MSPS, providing 14-bit and 12-bit output, respectively. The ADC is designed to scale power with sampling rate. The output interface of the ADC is a low-voltage differential signaling (LVDS) interface that can easily interface with low-cost field-programmable gate arrays (FPGAs).

The AFE5816 also allows various power and noise combinations to be selected for optimizing system performance. Therefore, these devices are suitable ultrasound AFE solutions for systems with strict battery-life requirements. The AFE5816 is available in a 15-mm × 15-mm NFBGA-289 package (ZAV package, S-PBGA-N289) and is specified for operation from –40°C to +85°C. The device is also pin-to-pin compatible with the AFE5818 family.

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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 AFE5816 16-Channel Ultrasound AFE With 90-mW/Channel Power, 1-nV/√Hz Noise, 14-Bit, 65-MSPS or 12-Bit, 80-MSPS ADC and Passive CW Mixer datasheet (Rev. E) Jul. 27, 2017
Application note Precision Sum Circuit Support Hi Output Current Multiple AFEs in Ultasound App Nov. 20, 2017
Application note Introduction to Ultrasound Jul. 10, 2017
Application note Time Gain Control (Compensation) in Ultrasound Applications Dec. 02, 2016
User guide AFE5816 EVM User Guide (Rev. A) Feb. 17, 2016
Technical articles Offset correction improves the next generation of heart-rate smart watches Aug. 24, 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

Design & development

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

Hardware development

EVALUATION BOARD Download
document-generic User guide
599
Description

The AFE5816EVM is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE5816EVM integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also (...)

Features
  • 16-Channel Complete Analog Front-End
  • Programmable Gain Low-Noise Amplifier (LNA)
  • Digital TGC Range (DTGC): 6 dB to 45 dB
  • 14-Bit, 65-MSPS or 12-Bit, 80-MSPS Analog to Digital Converter
  • Requires the TSW1400EVM for data capture and performance evaluation
EVALUATION BOARD Download
document-generic User guide
Description

The AFE58JD16EVM is a highly integrated Analog Front-End (AFE) solution specifically designed for ultrasound systems in which high performance and small size are required. The AFE58JD16EVM integrates a complete time-gain-control (TGC) imaging path and a continuous wave Doppler (CWD) path. It also (...)

Features

• 16-Channel Complete Analog Front-End

• Programmable Gain Low-Noise Amplifier (LNA)

• Digital TGC Range (DTGC): 6 dB to 45 Db

• 14-bit Analog to Digital Converter

• I/Q Demodulator and Decimation Filter

Design tools & simulation

SIMULATION MODEL Download
SLAM253.ZIP (57 KB) - IBIS Model
SIMULATION TOOL 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
  • (...)
GERBER FILE Download
SBAC192.ZIP (2 KB)

CAD/CAE symbols

Package Pins Download
NFBGA (ZAV) 289 View options

Ordering & quality

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