AFE5828

AKTIV

16-Kanal-Ultraschall-AFE mit 102 mW/Kanal Stromverbrauch, LVDS-Schnittstelle und passivem CW-Mischer

Produktdetails

Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 260 Supply voltage (max) (V) 3.6 Operating temperature range (°C) 0 to 85 Interface type LVDS Features Analog Front End (AFE) Rating Catalog
Device type Receiver Number of input channels 16 Active supply current (typ) (mA) 260 Supply voltage (max) (V) 3.6 Operating temperature range (°C) 0 to 85 Interface type LVDS Features Analog Front End (AFE) Rating Catalog
NFBGA (ZAV) 289 225 mm² 15 x 15
  • 16-Channel AFE for Ultrasound Applications:
    • Optimized Signal Chains for TGC and CW Modes
    • Four Programmable TGC Profiles
  • Low-Noise Amplifier (LNA) With:
    • Programmable Gain: 21 dB, 18 dB, and 15 dB
    • Linear Input Signal Amplitude:
      0.37 VPP, 0.5 VPP, and 0.71 VPP
    • Active Termination
  • Voltage-Controlled Attenuator (VCAT):
    • Attenuation Range: 0 dB–36 dB
  • Programmable Gain Amplifier (PGA):
    • 18 dB–27 dB in Steps of 3 dB
  • 3rd-Order, Linear-Phase, Low-Pass Filter (LPF):
    • Cutoff Frequency From 10 MHz to 30 MHz
  • ADC Modes (Idle-Channel SNR):
    • 14-Bit, 65-MSPS Mode: 75-dBFS
    • 12-Bit, 80-MSPS Mode: 72-dBFS
  • Optimized for Noise and Power:
    • TGC Mode: 102 mW/Ch at 0.8 nV/√Hz,
      65-MSPS, 14-Bit Output
    • CW Mode: 63 mW/Ch
  • Excellent Device-to-Device Gain Matching:
    • ±0.4 dB (Typical)
  • Fast and Consistent Overload Recovery
  • Continuous Wave (CW) Path With:
    • Low Close-In Phase Noise of –159 dBc/Hz at 1-kHz Frequency Offset off 2.5-MHz Carrier
    • Phase Resolution: λ / 16
    • Supports 16x and 8x CW Clocks
    • 12-dB Suppression of 3rd and 5th Harmonics
  • LVDS Interface With a Speed Up to 1 Gbps
  • Small Package: 15-mm × 15-mm NFBGA-289
  • 16-Channel AFE for Ultrasound Applications:
    • Optimized Signal Chains for TGC and CW Modes
    • Four Programmable TGC Profiles
  • Low-Noise Amplifier (LNA) With:
    • Programmable Gain: 21 dB, 18 dB, and 15 dB
    • Linear Input Signal Amplitude:
      0.37 VPP, 0.5 VPP, and 0.71 VPP
    • Active Termination
  • Voltage-Controlled Attenuator (VCAT):
    • Attenuation Range: 0 dB–36 dB
  • Programmable Gain Amplifier (PGA):
    • 18 dB–27 dB in Steps of 3 dB
  • 3rd-Order, Linear-Phase, Low-Pass Filter (LPF):
    • Cutoff Frequency From 10 MHz to 30 MHz
  • ADC Modes (Idle-Channel SNR):
    • 14-Bit, 65-MSPS Mode: 75-dBFS
    • 12-Bit, 80-MSPS Mode: 72-dBFS
  • Optimized for Noise and Power:
    • TGC Mode: 102 mW/Ch at 0.8 nV/√Hz,
      65-MSPS, 14-Bit Output
    • CW Mode: 63 mW/Ch
  • Excellent Device-to-Device Gain Matching:
    • ±0.4 dB (Typical)
  • Fast and Consistent Overload Recovery
  • Continuous Wave (CW) Path With:
    • Low Close-In Phase Noise of –159 dBc/Hz at 1-kHz Frequency Offset off 2.5-MHz Carrier
    • Phase Resolution: λ / 16
    • Supports 16x and 8x CW Clocks
    • 12-dB Suppression of 3rd and 5th Harmonics
  • LVDS Interface With a Speed Up to 1 Gbps
  • Small Package: 15-mm × 15-mm NFBGA-289

The AFE5828 device is a highly-integrated, analog front-end (AFE) solutions specifically designed for ultrasound systems where high performance, low power, and small size are required.

The AFE5828 is an integrated AFE optimized for medical ultrasound application. The device is realized through a multichip module (MCM) with two dies: one voltage-controlled amplifier (VCA) die and one analog-to-digital converter (ADC) die. The VCA die has 16 channels that interface with the 16 channels of the ADC die.

Each channel in the VCA die can be configured in one of two modes: time gain compensation (TGC) mode or continuous wave (CW) mode. In TGC mode, each channel includes a low-noise amplifier (LNA), a voltage-controlled attenuator (VCAT), a programmable gain amplifier (PGA), and a third-order, low-pass filter (LPF). The LNA is programmable in gains of 21 dB, 18 dB, or 15 dB. The LNA also supports active termination. The VCAT supports an attenuation range of 0 dB to 36 dB, with analog voltage control for the attenuation. The PGA provides gain options from 18 dB to 27 dB in steps of 3 dB. The LPF cutoff frequency can be set between 10 MHz and 30 MHz to support ultrasound applications with different frequencies. In CW mode, the output of the LNA goes to a low-power passive mixer with 16 selectable phase delays followed by a summing amplifier with a band-pass filter. 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.

The 16 channels of the ADC die can be configured to operate with a resolution of 14 bits or 12 bits. The ADC resolution can be traded off with conversion rate, and can operate at maximum speeds of 65 MSPS and 80 MSPS at 14-bit and 12-bit resolution, respectively. The ADC is designed to scale its power with sampling rate. The output interface of the ADC comes out through a low-voltage differential signaling (LVDS) that can easily interface with low-cost field-programmable gate arrays (FPGAs).

The device 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 device is available in a 15-mm × 15-mm NFBGA-289 package and is pin-compatible with the AFE5818 and AFE5816 family.

The AFE5828 device is a highly-integrated, analog front-end (AFE) solutions specifically designed for ultrasound systems where high performance, low power, and small size are required.

The AFE5828 is an integrated AFE optimized for medical ultrasound application. The device is realized through a multichip module (MCM) with two dies: one voltage-controlled amplifier (VCA) die and one analog-to-digital converter (ADC) die. The VCA die has 16 channels that interface with the 16 channels of the ADC die.

Each channel in the VCA die can be configured in one of two modes: time gain compensation (TGC) mode or continuous wave (CW) mode. In TGC mode, each channel includes a low-noise amplifier (LNA), a voltage-controlled attenuator (VCAT), a programmable gain amplifier (PGA), and a third-order, low-pass filter (LPF). The LNA is programmable in gains of 21 dB, 18 dB, or 15 dB. The LNA also supports active termination. The VCAT supports an attenuation range of 0 dB to 36 dB, with analog voltage control for the attenuation. The PGA provides gain options from 18 dB to 27 dB in steps of 3 dB. The LPF cutoff frequency can be set between 10 MHz and 30 MHz to support ultrasound applications with different frequencies. In CW mode, the output of the LNA goes to a low-power passive mixer with 16 selectable phase delays followed by a summing amplifier with a band-pass filter. 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.

The 16 channels of the ADC die can be configured to operate with a resolution of 14 bits or 12 bits. The ADC resolution can be traded off with conversion rate, and can operate at maximum speeds of 65 MSPS and 80 MSPS at 14-bit and 12-bit resolution, respectively. The ADC is designed to scale its power with sampling rate. The output interface of the ADC comes out through a low-voltage differential signaling (LVDS) that can easily interface with low-cost field-programmable gate arrays (FPGAs).

The device 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 device is available in a 15-mm × 15-mm NFBGA-289 package and is pin-compatible with the AFE5818 and AFE5816 family.

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Typ Titel Datum
* Data sheet AFE5828 16-Channel Ultrasound AFE with 102-mW/Channel Power, 0.8-nV/√Hz Noise, 14-Bit, 65-MSPS or 12-Bit, 80-MSPS ADC, LVDS Interface, and Passive CW Mixer datasheet (Rev. A) PDF | HTML 27 Okt 2017
Application brief Building High-Performance NDT Systems with Ultrasound Transmitters and Receivers PDF | HTML 04 Aug 2023
Application note Understanding CW Mode for Ultrasound AFE Devices 17 Jul 2017
Application note Introduction to Ultrasound 10 Jul 2017

Design und Entwicklung

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Evaluierungsplatine

AFE5828EVM — AFE5828 16-Kanal-Ultraschall-AFE mit LVDS-Schnittstelle und passivem CW-Mischer – Evaluierungsmodul

Das Evaluierungsmodul AFE5828 ist eine hochintegrierte Analog-Frontend-(AFE)-Lösung speziell für Ultraschallsysteme, bei denen eine hohe Leistung und eine geringe Größe Voraussetzung sind. Das Bauteil integriert einen vollständigen TGC-Bildgebungspfad (Time-Gain Control) und einen CWD-Pfad (...)

Simulationsmodell

AFE5828_CW TINA-TI Reference Design (Rev. B)

SBAM373B.TSC (159 KB) - TINA-TI Reference Design
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AFE5828_CW TINA-TI Spice Model (Rev. B)

SBAM374B.ZIP (34 KB) - TINA-TI Spice Model
Simulationsmodell

AFE5828_TGC TINA-TI Reference Design (Rev. B)

SBAM372B.TSC (89 KB) - TINA-TI Reference Design
Simulationsmodell

AFE5828_TGC TINA-TI Spice Model (Rev. B)

SBAM371B.ZIP (25 KB) - TINA-TI Spice Model
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PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

PSpice® für TI ist eine Design- und Simulationsumgebung, welche Sie dabei unterstützt, die Funktionalität analoger Schaltungen zu evaluieren. Diese voll ausgestattete Design- und Simulationssuite verwendet eine analoge Analyse-Engine von Cadence®. PSpice für TI ist kostenlos erhältlich und (...)
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NFBGA (ZAV) 289 Ultra Librarian

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