VCA8500

AKTIV

8-kanaliger Verstärker, extrem geringer Stromverbrauch, variable Verstärkung, mit rauscharmem Vorver

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Datenblatt

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

VCA8500

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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.

filter

Andere Verstärker mit programmierbarer Verstärkung (PGA) und mit variabler Verstärkung (VGA) suchen

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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Neueste englische Version herunterladen	Datum
*	Datenblatt	8-Channel, Ultralow-Power, Variable Gain Amplifier with Low-Noise Pre-Amp datasheet (Rev. A)			19.03.2008
	Benutzerhandbuch	VCA8500BOARD (Rev. B)			25.01.2013

Design und Entwicklung

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