VCA8500

ACTIVO

Amplificador de ganancia variable de potencia ultrabaja de 8 canales con preamplificador de ruido ba

Detalles del producto

PGA/VGA VGA Number of channels 8 Vs (min) (V) 3.14 Vs (max) (V) 3.47 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 10 Gain (max) (dB) 51 Rating Catalog Operating temperature range (°C) -40 to 85
PGA/VGA VGA Number of channels 8 Vs (min) (V) 3.14 Vs (max) (V) 3.47 BW at Acl (MHz) 55 Acl, min spec gain (V/V) 10 Gain (max) (dB) 51 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGC) 64 81 mm² 9 x 9
  • Ultralow Power: 65mW/Channel
  • Low Noise: 0.8nV/Hz
  • Low-Noise Pre-Amp (LNP):
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable Gain Amplifier:
    • Gain Control Range: 46dB
    • Selectable PGA Gain:
      20dB, 25dB, 27dB, 30dB
    • Fast Overload Recovery
    • Output Clamping Control
  • Integrated Low-Pass Filter:
    • Second-Order, Linear Phase
    • Bandwidth: 10MHz, 15MHz
  • High Accuracy:
    • Low Gain Error: ±0.5dB
    • Excellent Channel Matching: ±0.25dB
  • Distortion, HD2: -50dBc at 5MHz
  • Integrated CW Switch Matrix:
    • Easy Current Summing
  • Serial Control Interface
  • Small Package: QFN-64, 9×9mm

PowerPAD Is a trademark of Texas Instruments.

Infineon is a registered trademark of Infineon Technologies.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners

  • Ultralow Power: 65mW/Channel
  • Low Noise: 0.8nV/Hz
  • Low-Noise Pre-Amp (LNP):
    • 20dB Fixed Gain
    • 250mVPP Linear Input Range
  • Variable Gain Amplifier:
    • Gain Control Range: 46dB
    • Selectable PGA Gain:
      20dB, 25dB, 27dB, 30dB
    • Fast Overload Recovery
    • Output Clamping Control
  • Integrated Low-Pass Filter:
    • Second-Order, Linear Phase
    • Bandwidth: 10MHz, 15MHz
  • High Accuracy:
    • Low Gain Error: ±0.5dB
    • Excellent Channel Matching: ±0.25dB
  • Distortion, HD2: -50dBc at 5MHz
  • Integrated CW Switch Matrix:
    • Easy Current Summing
  • Serial Control Interface
  • Small Package: QFN-64, 9×9mm

PowerPAD Is a trademark of Texas Instruments.

Infineon is a registered trademark of Infineon Technologies.

SPI is a trademark of Motorola.

All other trademarks are the property of their respective owners

The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems.

The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500.

The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface.

The VCA8500 is built on TI's BiCOM process and is available in a small QFN-64 PowerPAD package.

The VCA8500 is an 8-channel variable gain amplifier consisting of a low-noise pre-amplifier (LNP) and a variable-gain amplifier (VGA). This combination, along with the device features, makes it ideal for a variety of ultrasound systems.

The LNP gain is fixed at 20dB, and has excellent noise and signal handling characteristics. The gain of the voltage-controlled attenuator can vary over a 46dB range with a 0V to 1.2V control voltage common to all channels of the VCA8500.

The post-gain amplifier (PGA) can be programmed for four gain settings: 20dB, 25dB, 27dB, or 30dB gain. As a means to improve system overload recovery time, the VCA8500 provides an internal clamping function. The PGA settings as well the clamp levels are controlled through the serial interface.

The VCA8500 is built on TI's BiCOM process and is available in a small QFN-64 PowerPAD package.

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Documentación técnica

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Tipo Título Fecha
* Data sheet 8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp datasheet (Rev. A) 19 mar 2008
User guide VCA8500BOARD (Rev. B) 25 ene 2013

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

ADS5281EVM — Placa de evaluación del convertidor analógico a digital de ocho canales, 12 bits y 50 MSPS ADS5281

Special Note: Customers looking to evaluate the ADS528x, should order a ADS528xEVM, a ADSDESER-50EVM, and a ADSDESER-50EVM Adapter Card.

The ADS5281EVM provides a platform for evaluating the eight-channel ADS5281 analog-to-digital converter (ADC) under various signal, reference, and supply (...)

Placa de evaluación

ADS5282EVM — Módulo de evaluación del convertidor analógico a digital de 12 bits, 65 MSPS, ocho canales ADS5282

Special Note: Customers looking to evaluate the ADS528x, should order a ADS528xEVM, a ADSDESER-50EVM, and a ADSDESER-50EVM Adapter Card.

The ADS5282EVM provides a platform for evaluating the eight-channel ADS5282 analog-to-digital converter (ADC) under various signal, reference, and supply (...)

Soporte de software

SLOC101 VCA8500BOARD SOFTWARE

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Amplificadores de ganancia programable y variable (PGA y VGA)
VCA8500 Amplificador de ganancia variable de potencia ultrabaja de 8 canales con preamplificador de ruido ba
Modelo de simulación

VCA8500 PSpice Model

SLOM161.ZIP (35 KB) - PSpice Model
Modelo de simulación

VCA8500 TINA-TI Reference Design

SBOM773.TSC (50 KB) - TINA-TI Reference Design
Modelo de simulación

VCA8500 TINA-TI Spice Model

SBOM774.ZIP (7 KB) - TINA-TI Spice Model
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 (...)
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 (...)
Guía del usuario: PDF
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RGC) 64 Ultra Librarian

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

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

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