VCA820 Status: ACTIVE

150MHz BW with linear in dB gain control variable gain amplifier

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Datasheet

Wideband, > 40dB Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER (Rev. C) (PDF 1306 KB)
08 Oct 2009

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	VCA820	VCA821	VCA822	VCA824
Iq per channel(Max)(mA)	34	34	38	35
Slew Rate(Typ)(V/us)	1700	2500	1700	2500
Io(Typ)(mA)	160	60	160	60
Vs(Min)(V)	7	7	7	8
Vs(Max)(V)	12	12	12	12
Number of Channels	1	1	1	1
Pin/Package	10MSOP, 14SOIC	10MSOP, 14SOIC	10MSOP, 14SOIC	10MSOP, 14SOIC
Diff Gain(%)	0.05	0.05	0.05
Diff Phase(deg)	0.05	0.05	0.05
Vio(Max)(mV)	17	17	17	17
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)	30	30	30	30
Available Channels	S	S	S	S
Vn at Flatband(Typ)(nV/rtHz)	8.2	6	8.2	6
Gain Range(dB)	40	40	40	40
Approx. Price (US$)	2.80 \| 1ku	3.50 \| 1ku	2.80 \| 1ku	3.50 \| 1ku
Iib(Max)(nA)	25000	25000	25000	25000
Noninverting Input Current Noise(pA/rtHz)	2.6	2.6	2.6	2.6
2nd Harmonic(dBc)	-62	-66	-62	-64
3rd Harmonic(dBc)	-68	-63	-68	-61
@ Mhz	20	20	20	20
BW @ G=+2(MHz)	168	710	168	710
0.1 dB BW Flatness(MHz)			28
Operating Temp Range(Celsius)	-40 to 85	-40 to 85	-40 to 85	-40 to 85
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

VCA821: Wideband, > 40dB Adjust Range, Linear in dB Variable Gain Amplifier
VCA8500: 8-Channel, Ultra-Low Power Variable Gain Amplifier With Low-Noise Pre-Amp
VCA822: Wideband, >40dB Gain Adjust Range, Linear in V/V Variable Gain Amplifier

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Product Information

Features

150MHz SMALL-SIGNAL BANDWIDTH
137MHz, 5V_PP BANDWIDTH (G = +10V/V)
0.1dB GAIN FLATNESS to 28MHz
1700V/µs SLEW RATE
> 40dB GAIN ADJUST RANGE
HIGH GAIN ACCURACY: 20dB ±0.4dB
HIGH OUTPUT CURRENT: 160mA
APPLICATIONS
- AGC RECEIVERS with RSSI
- DIFFERENTIAL LINE RECEIVERS
- PULSE AMPLITUDE COMPENSATION
- VARIABLE ATTENUATORS
- DROP-IN UPGRADE TO LMH6502

All trademarks are the property of their respective owners.

Description

The VCA820 is a dc-coupled, wideband, linear in dB, continuously variable, voltage-controlled gain amplifier. It provides a differential input to single-ended conversion with a high-impedance gain control input used to vary the gain down 40dB from the nominal maximum gain set by the gain resistor (R_G) and feedback resistor (R_F).

The VCA820 internal architecture consists of two input buffers and an output current feedback amplifier stage integrated with a multiplier core to provide a complete variable gain amplifier (VGA) system that does not require external buffering. The maximum gain is set externally with two resistors, providing flexibility in designs. The maximum gain is intended to be set between +2V/V and +100V/V. Operating from ±5V supplies, the gain control voltage for the VCA820 adjusts the gain linearly in dB as the control voltage varies from 0V to +2V. For example, set for a maximum gain of +10V/V, the VCA820 provides 20dB, at +2V input, to –20dB at 0V input of gain control range. The VCA820 offers excellent gain linearity. For a 20dB maximum gain, and a gain-control input voltage varying between 1V and 2V, the gain does not deviate by more than ±0.4dB (maximum at +25°C).

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
VCA820ID	ACTIVE	-40 to 85	3.10 \| 1ku	SOIC (D) \| 14	View	50 \| TUBE
VCA820IDG4	ACTIVE	-40 to 85	3.10 \| 1ku	SOIC (D) \| 14	View	50 \| TUBE
VCA820IDGSR	ACTIVE	-40 to 85	2.80 \| 1ku	MSOP (DGS) \| 10	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDGSRG4	ACTIVE	-40 to 85	2.80 \| 1ku	MSOP (DGS) \| 10	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDGST	ACTIVE	-40 to 85	2.90 \| 1ku	MSOP (DGS) \| 10	View	250 \| SMALL T&R
VCA820IDGSTG4	ACTIVE	-40 to 85	2.90 \| 1ku	MSOP (DGS) \| 10	View	250 \| SMALL T&R
VCA820IDR	ACTIVE	-40 to 85	2.80 \| 1ku	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDRG4	ACTIVE	-40 to 85	2.80 \| 1ku	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples

* 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 9:39 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksVCA820ID
Americas	Arrow	>1k
Americas	Newark	208
Asia	WPI	62
Worldwide	DigiKey	419
Worldwide	Mouser Electronics	100
TI Lead Time*: 20 WeeksVCA820IDG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksVCA820IDGSR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksVCA820IDGSRG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksVCA820IDGST
Europe	Avnet-SILICA	210
Worldwide	DigiKey	101
TI Lead Time*: 4 WeeksVCA820IDGSTG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksVCA820IDR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksVCA820IDRG4
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
VCA820ID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDGSR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDGSRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDGST	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDGSTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
VCA820IDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	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 VCA820

Datasheet

Wideband, > 40dB Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER (Rev. C) (PDF, 1306 KB)
08 Oct 2009

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

Tools & Software

Name	Part #	Company	Tool / Software Type
FREE DEM-VCA-MSOP-1A	DEM-VCA-MSOP-1A	Texas Instruments	Development Boards/EVMs
FREE DEM-VCA-SO-1B	DEM-VCA-SO-1B	Texas Instruments	Development Boards/EVMs

Simulation Models

TINA-TI Reference Design
- VCA820 TINA-TI Reference Design (Rev. B) (TSC, 39 KB) 65 views
  22 Jul 2009
TINA-TI Spice Model
- VCA820 TINA-TI Spice Model (Rev. A) (ZIP, 10 KB) 37 views
  22 Jul 2009
PSpice Model
- VCA820 PSpice Model (ZIP, 5 KB) 57 views
  21 Nov 2008

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
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VCA8500	8-Channel, Ultra-Low Power Variable Gain Amplifier With Low-Noise Pre-Amp	AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER	TI customers also evaluated this product.
VCA822	Wideband, >40dB Gain Adjust Range, Linear in V/V Variable Gain Amplifier	AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER	TI customers also evaluated this product.
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TL026	Differential High-Frequency Amplifier with AGC	AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER	TI customers also evaluated this product.
VCA2611	Dual, Variable Gain Amplifier with Low-Noise Preamp	AMPLIFIERS AND LINEAR-VARIABLE GAIN AMPLIFIER	TI customers also evaluated this product.
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VCA820 Status: ACTIVE

150MHz BW with linear in dB gain control variable gain amplifier

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Datasheet

Customers Who Evaluated This Product Also Evaluated

Product Information

Features

Description

Pricing / Packaging / CAD Design Tools / Samples

Inventory

Quality & Lead (Pb)-Free Data

Technical Documents

Datasheet

Application Notes

Tools & Software

Simulation Models

Support and Community

Customer Tags

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