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. A) (vca820.pdf, 975 KB)
28 Aug 2008 Download

	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$)	4.35 \| 100u	5.20 \| 100u	4.35 \| 100u	5.20 \| 100u
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

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ADS1255: 24 Bit, 30kSPS Very Low Noise Delta-Sigma ADC

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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

X2Y is a trademark of X2Y Corporation.
All other 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	4.35 \| 100u	SOIC (D) \| 14	View	50 \| TUBE
VCA820IDG4	ACTIVE	-40 to 85	4.35 \| 100u	SOIC (D) \| 14	View	50 \| TUBE
VCA820IDGSR	ACTIVE	-40 to 85	4.35 \| 100u	MSOP (DGS) \| 10	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDGSRG4	ACTIVE	-40 to 85	4.35 \| 100u	MSOP (DGS) \| 10	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDGST	ACTIVE	-40 to 85	4.45 \| 100u	MSOP (DGS) \| 10	View	250 \| SMALL T&R
VCA820IDGSTG4	ACTIVE	-40 to 85	4.45 \| 100u	MSOP (DGS) \| 10	View	250 \| SMALL T&R
VCA820IDR	ACTIVE	-40 to 85	4.35 \| 100u	SOIC (D) \| 14	View	2500 \| LARGE T&R	Purchase Samples
VCA820IDRG4	ACTIVE	-40 to 85	4.35 \| 100u	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

	TI Inventory Status			Reported Distributor Inventory
VCA820ID	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4600*	>10k \| 2 Jan	4 Weeks	Americas	Arrow	70
					DigiKey	611
					Mouser Electronics	994
					Newark	209
				Asia	WPI	65
VCA820IDG4	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	4600*	>10k \| 2 Jan	4 Weeks	Europe	EBV Elektronik	25
VCA820IDGSR	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2500*	1308 \| 21 Nov	4 Weeks	None Reported View Distributors
	2500*	>10k \| 12 Jan	4 Weeks
VCA820IDGSRG4	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2500*	1308 \| 21 Nov	4 Weeks	None Reported View Distributors
	2500*	>10k \| 12 Jan	4 Weeks
VCA820IDGST	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	500*	>10k \| 26 Jan	4 Weeks	Americas	DigiKey	251
				Americas	Mouser Electronics	248
				Asia	WPI	150
VCA820IDGSTG4	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	500*	>10k \| 26 Jan	4 Weeks	None Reported View Distributors
VCA820IDR	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Jan	8 Weeks	None Reported View Distributors
VCA820IDRG4	As of 8:45 AM GMT, 20 Nov 2008			As of 8:45 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 2 Jan	8 Weeks	None Reported View Distributors
View all Distributors

* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.

** 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

Datasheets

Wideband, > 40dB Adjust Range, Linear in dB VARIABLE GAIN AMPLIFIER (Rev. A) (vca820.pdf, 975 KB)
28 Aug 2008 Download

Application Notes

Shelf-Life Evaluation of Lead-Free Component Finishes (szza046.htm, 8 KB)
24 May 2004 Abstract
Thermal and Electrical Properties of Selected Packaging Materials (sbfa010.htm, 8 KB)
04 Oct 2000 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

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Complementary Products - Can be used with VCA820
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