VCA8617 Status: ACTIVE

8-Channel Variable Gain Amplifier

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Datasheet

8-Channel Variable Gain Amplifier (Rev. E) (PDF 750 KB)
20 Nov 2007

	VCA8617
Slew Rate(Typ)(V/us)	300
GBW(Typ)(MHz)	100
Vs(Min)(V)	2.85
Vs(Max)(V)	3.15
Number of Channels	8
Pin/Package	64TQFP
BW @ Acl(MHz)	14.5
Available Channels	O
Gain Range(dB)	25,30,35,40
Approx. Price (US$)	24.00 \| 1ku
2nd Harmonic(dBc)	60
3rd Harmonic(dBc)	65
Operating Temp Range(Celsius)	-40 to 85
	Samples
	Inventory

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Product Information

Features

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

All other trademarks are the property of their respective owners.

Description

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 8×10 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.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
VCA8617PAGR	ACTIVE	-40 to 85	24.00 \| 1ku	TQFP (PAG) \| 64	View	1500 \| LARGE T&R	Purchase Samples
VCA8617PAGRG4	ACTIVE	-40 to 85	24.00 \| 1ku	TQFP (PAG) \| 64	View	1500 \| LARGE T&R	Purchase Samples
VCA8617PAGT	ACTIVE	-40 to 85	24.00 \| 1ku	TQFP (PAG) \| 64	View	250 \| SMALL T&R
VCA8617PAGTG4	ACTIVE	-40 to 85	24.00 \| 1ku	TQFP (PAG) \| 64	View	250 \| SMALL T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 9:38 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 6 WeeksVCA8617PAGR
Worldwide	DigiKey	Available
TI Lead Time*: 6 WeeksVCA8617PAGRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksVCA8617PAGT
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	106
Worldwide	DigiKey	193
TI Lead Time*: 20 WeeksVCA8617PAGTG4
Worldwide	DigiKey	Available
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
VCA8617PAGR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
VCA8617PAGRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
VCA8617PAGT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View
VCA8617PAGTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-4-260C-72 HR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for VCA8617

Datasheet

8-Channel Variable Gain Amplifier (Rev. E) (PDF, 750 KB)
20 Nov 2007

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15663 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 26941 views
24 May 2004 Read Abstract
AB-170: Ultrasound Processor Supplementary Material (HTM, 8 KB) 867 views
25 Jan 2001 Read Abstract
VCA8617: Response to Step-Change in Gain Control (HTM, 8 KB) 483 views
24 Mar 2005 Read Abstract
Interfacing the VCA8617 with High-Speed ADCs (HTM, 8 KB) 778 views
05 Apr 2005 Read Abstract

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Ultrasound System

All End-Equipment

VCA8617 Status: ACTIVE

8-Channel Variable Gain Amplifier

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Datasheet

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