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Amplificadores de ganancia programable y variable (PGA y VGA)

VCA2617

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Amplificador de ganancia variable de 2 canales de paquete más pequeño

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VCA2617

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Detalles del producto

Number of channels 2 Vs (min) (V) 4.75 Vs (max) (V) 5.25 BW at Acl (MHz) 50 Acl, min spec gain (V/V) 0.32 Features Analog Gain Set, Digital Gain Set, Integrated Clamps, Shutdown Slew rate (typ) (V/µs) 100 Gain (max) (dB) 48 Rating Catalog Operating temperature range (°C) -40 to 85
Number of channels 2 Vs (min) (V) 4.75 Vs (max) (V) 5.25 BW at Acl (MHz) 50 Acl, min spec gain (V/V) 0.32 Features Analog Gain Set, Digital Gain Set, Integrated Clamps, Shutdown Slew rate (typ) (V/µs) 100 Gain (max) (dB) 48 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RHB) 32 25 mm² 5 x 5
  • INDEPENDENT CHANNEL CONTROLS:
    • Gain Range: 48dB
    • Clamping Levels
    • Post-Gain: 0, +6dB
  • LOW NOISE: 4.1nV/Hz
  • LOW POWER: 52mW/Channel
  • BANDWIDTH: 50MHz
  • HARMONIC DISTORTION: -53dBc at 5MHz
  • CROSSTALK: -61dB at 5MHz
  • 5V SINGLE SUPPLY
  • POWER-DOWN MODE
  • SMALL QFN-32 PACKAGE (5x5mm)
  • APPLICATIONS
    • MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS
      • Suitable for 10-Bit and 12-Bit Systems
    • TEST EQUIPMENT
    • SONAR

All trademarks are the property of their respective owners.
  • INDEPENDENT CHANNEL CONTROLS:
    • Gain Range: 48dB
    • Clamping Levels
    • Post-Gain: 0, +6dB
  • LOW NOISE: 4.1nV/Hz
  • LOW POWER: 52mW/Channel
  • BANDWIDTH: 50MHz
  • HARMONIC DISTORTION: -53dBc at 5MHz
  • CROSSTALK: -61dB at 5MHz
  • 5V SINGLE SUPPLY
  • POWER-DOWN MODE
  • SMALL QFN-32 PACKAGE (5x5mm)
  • APPLICATIONS
    • MEDICAL AND INDUSTRIAL ULTRASOUND SYSTEMS
      • Suitable for 10-Bit and 12-Bit Systems
    • TEST EQUIPMENT
    • SONAR

All trademarks are the property of their respective owners.

The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier well-suited for a variety of ultrasound systems as well as applications in proximity detectors and test equipment. The VCA2617 uses a true variable-gain amplifier architecture, achieving very good noise performance at low gains, while not sacrificing high gain distortion performance.

Following a linear-in-dB response, the VCA2617 gain can be varied over a 48dB range with a 0.2V to 2.3V control voltage. Two separate high-impedance control inputs allow for a channel independent variation of the gains. Each channel of the VCA2617 can be configured to provide a gain range of -10dB to 38dB, or -16dB to 32dB, depending on the gain select pin (HG)\. This post-gain feature allows the user to optimize the output swing of VCA2617 for a variety of high-speed analog-to-digital converters (ADC). As a means to improve system overload recovery time, the VCA2617 also provides an internal clamping circuitry where an externally applied voltage sets the desired output clamping level.

The VCA2617 operates on a single +5V supply while consuming only 52mW per channel. It is available in a small QFN-32 package (5x5mm).

The VCA2617 is a dual-channel, continuously variable, voltage-controlled gain amplifier well-suited for a variety of ultrasound systems as well as applications in proximity detectors and test equipment. The VCA2617 uses a true variable-gain amplifier architecture, achieving very good noise performance at low gains, while not sacrificing high gain distortion performance.

Following a linear-in-dB response, the VCA2617 gain can be varied over a 48dB range with a 0.2V to 2.3V control voltage. Two separate high-impedance control inputs allow for a channel independent variation of the gains. Each channel of the VCA2617 can be configured to provide a gain range of -10dB to 38dB, or -16dB to 32dB, depending on the gain select pin (HG)\. This post-gain feature allows the user to optimize the output swing of VCA2617 for a variety of high-speed analog-to-digital converters (ADC). As a means to improve system overload recovery time, the VCA2617 also provides an internal clamping circuitry where an externally applied voltage sets the desired output clamping level.

The VCA2617 operates on a single +5V supply while consuming only 52mW per channel. It is available in a small QFN-32 package (5x5mm).
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Documentación técnica

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* Data sheet Dual, Variable Gain Amplifier datasheet 09 ago 2005
EVM User's guide VCA2617EVM User's Guide 30 nov 2005

Diseño y desarrollo

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Placa de evaluación

VCA2617EVM — Módulo de evaluación VCA2617

The VCA2617 is a dual-channel, continuously variable, voltage-controlled amplifier. The VCA2617EVM evaluation module is designed to allow for a quick setup and ease of use in evaluating the performance. Various modes of operation can be configured, for example using the transfomer coupled, or the (...)

Guía del usuario: PDF
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Modelo de simulación

VCA2617 TINA-TI Reference Design

SBOM792.TSC (2737 KB) - TINA-TI Reference Design
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Modelo de simulación

VCA2617 TINA-TI Spice Model

SBOM793.ZIP (21 KB) - TINA-TI Spice Model
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Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de 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 (...)
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Herramienta de simulación

TINA-TI — Programa de simulación analógica basado en SPICE

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RHB) 32 Ultra Librarian
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Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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