VCA8617

AKTIV

8-kanaliger Verstärker mit variabler Verstärkung

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Datenblatt

document-pdfAcrobat Eight-Channel Variable Gain Amplifier datasheet (Rev. F) (Englisch)

VCA8617

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

PGA/VGA

VGA

Number of channels

8

Vs (min) (V)

2.85

Vs (max) (V)

3.15

BW at Acl (MHz)

100

Acl, min spec gain (V/V)

1.8

Gain (max) (dB)

58

Slew rate (typ) (V/µs)

300

Rating

Catalog

Operating temperature range (°C)

-40 to 85

PGA/VGA

VGA

Number of channels

8

Vs (min) (V)

2.85

Vs (max) (V)

3.15

BW at Acl (MHz)

100

Acl, min spec gain (V/V)

1.8

Gain (max) (dB)

58

Slew rate (typ) (V/µs)

300

Rating

Catalog

Operating temperature range (°C)

-40 to 85

TQFP (PAG)

64

144 mm² (12 mm × 12 mm)

3V OPERATION
LOW INPUT NOISE:
- 1.05nV/√Hz at f_IN = 5MHz
EXTREMELY LOW POWER OPERATION:
- 103mW/CHANNEL
INTEGRATED LOW-PASS, ANTI-ALIASING BUTTERWORTH FILTER
- 14.5MHz BANDWIDTH
INTEGRATED INPUT CLAMP DIODES
DIFFERENTIAL OUTPUT
INTEGRATED INPUT LNA
READABLE CONTROL REGISTERS
INTEGRATED CONTINUOUS WAVE (CW) PROCESSOR

3V OPERATION
LOW INPUT NOISE:
- 1.05nV/√Hz at f_IN = 5MHz
EXTREMELY LOW POWER OPERATION:
- 103mW/CHANNEL
INTEGRATED LOW-PASS, ANTI-ALIASING BUTTERWORTH FILTER
- 14.5MHz BANDWIDTH
INTEGRATED INPUT CLAMP DIODES
DIFFERENTIAL OUTPUT
INTEGRATED INPUT LNA
READABLE CONTROL REGISTERS
INTEGRATED CONTINUOUS WAVE (CW) PROCESSOR

The VCA8617 is an 8-channel variable gain amplifier ideally suited to portable ultrasound applications. Excellent dynamic performance enables use in low-power, high-performance portable applications. Each channel consists of a 20dB gain Low-Noise pre-Amplifier (LNA) and a Variable Gain Amplifier (VGA). The differential outputs of the LNA can be switched through the 8x10 cross-point switch, which is programmable through the serial interface input port.

The output of the LNA is fed directly into the VGA stage. The VGA consists of two parts, a Voltage-Controlled Attenuator (VCA) and a Programmable Gain Amplifier (PGA). The gain and gain range of the PGA can be digitally configured separately. The gain of the PGA can vary between four discrete settings of 25dB, 30dB, 35dB, and 40dB. The VCA has four programmable maximum attenuation settings: 29dB, 33dB, 36.5dB, and 40dB. Also, the VCA can be continuously varied by a control voltage from 0dB to a maximum of 29dB, 33dB, 36.5dB, and 40dB.

The output of the PGA feeds directly into an integrated low-pass filter.

The VCA8617 is an 8-channel variable gain amplifier ideally suited to portable ultrasound applications. Excellent dynamic performance enables use in low-power, high-performance portable applications. Each channel consists of a 20dB gain Low-Noise pre-Amplifier (LNA) and a Variable Gain Amplifier (VGA). The differential outputs of the LNA can be switched through the 8x10 cross-point switch, which is programmable through the serial interface input port.

The output of the LNA is fed directly into the VGA stage. The VGA consists of two parts, a Voltage-Controlled Attenuator (VCA) and a Programmable Gain Amplifier (PGA). The gain and gain range of the PGA can be digitally configured separately. The gain of the PGA can vary between four discrete settings of 25dB, 30dB, 35dB, and 40dB. The VCA has four programmable maximum attenuation settings: 29dB, 33dB, 36.5dB, and 40dB. Also, the VCA can be continuously varied by a control voltage from 0dB to a maximum of 29dB, 33dB, 36.5dB, and 40dB.

The output of the PGA feeds directly into an integrated low-pass filter.

filter

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

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Technische Dokumentation

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Alle anzeigen 4

Top-Dokumentation	Typ	Titel	Datum
*	Datenblatt	Eight-Channel Variable Gain Amplifier datasheet (Rev. F)	18.11.2009
	Anwendungshinweis	Interfacing the VCA8617 with High-Speed ADCs	05.04.2005
	Anwendungshinweis	VCA8617: Response to Step-Change in Gain Control	24.03.2005
	Anwendungshinweis	AB-170: Ultrasound Processor Supplementary Material	25.01.2001

Design und Entwicklung

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Gehäuse	Pins	CAD-Symbole, Footprints und 3D-Modelle
TQFP (PAG)	64	Ultra Librarian

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VCA8617

8-kanaliger Verstärker mit variabler Verstärkung

VCA8617

Produktdetails

Technische Dokumentation

Design und Entwicklung

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