VCA8500

ACTIVO

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

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Hoja de datos

document-pdfAcrobat 8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp datasheet (Rev. A) (Inglés)

VCA8500

ACTIVO

Hoja de datos

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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 mm × 9 mm)

Ultralow Power: 65mW/Channel
Low Noise: 0.8nV/Hz
Low-Noise Pre-Amp (LNP):
- 20dB Fixed Gain
- 250mV_PP 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
- 250mV_PP 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 principal	Tipo	Título	Opciones de formato	Descargar la versión más reciente en inglés	Fecha
*	Hoja de datos	8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp datasheet (Rev. A)			19/03/2008
	Guía del usuario	VCA8500BOARD (Rev. B)			25/01/2013

Diseño y desarrollo

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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 (...)

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