OPA684 Status: ACTIVE

Low-Power, Current Feedback Operational Amplifier With Disable

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Datasheet

Low-Power, Current Feedback Operational Amplifier With Disable (Rev. D) (PDF 712 KB)
19 Jun 2009

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	OPA2684	OPA3684	OPA4684	OPA684
Iq per channel(Max)(mA)	3.9	3.9	7.8	3.9
Slew Rate(Typ)(V/us)	820	820	750	820
GBW(Typ)(MHz)	1900	1900	1900	1900
Io(Typ)(mA)	120	120	120	120
Vs(Min)(V)	9	5	5	5
Vs(Max)(V)	12	12	12	12
Number of Channels	2	3	4	1
Pin/Package	8SOIC, 8SOT-23	14SOIC, 16SSOP/QSOP	14SOIC, 14TSSOP	6SOT-23, 8SOIC
Acl, min stable gain(V/V)	1	1	1	1
BW @ Acl(MHz)	210	210	250	210
Diff Gain(%)	0.04	0.04	0.04	0.04
Diff Phase(deg)	0.02	0.02	0.02	0.02
Vio(Max)(mV)	3.5	3.5	4	3.5
THD (Fc=1 MHz)(Typ)(dB)	-79	-79	-79	-79
Settling Time (0.1%)(Typ)(ns)	11	11		11
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)	12	12	12	12
Available Channels	S, D, T, Q	S, D, T, Q	S, D, T, Q	S, D, T, Q
Vn at Flatband(Typ)(nV/rtHz)	3.7	3.7	3.7	3.7
Approx. Price (US$)	2.10 \| 1ku	2.75 \| 1ku	3.30 \| 1ku	1.35 \| 1ku
Iib(Max)(nA)	13000	13000	15000	13000
Noninverting Input Current Noise(pA/rtHz)	9.4	9.4	9.4	9.4
2nd Harmonic(dBc)	80	80	80	80
3rd Harmonic(dBc)	80	80	80	80
@ Mhz	5	5	5	5
BW @ G=+2(MHz)	170	170	170	170
0.1 dB BW Flatness(MHz)	19	19	19	19
Inverting Input Current Noise(pA/rtHz)	17	17	17	17
Crosstalk(-dB)	70	70	52
Operating Temp Range(Celsius)	-40 to 125	-40 to 85	-40 to 85	-40 to 85
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

THS3001: 420-MHz Current-Feedback Amplifier
THS3091: Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier
OPA695: Ultra-Wideband, Current-Feedback Operational Amplifier with Disable
TL3116: Ultra-Fast Low-Power Precision Comparator
OPA820: Unity Gain Stable,Low Noise,Voltage Feedback Operational Amplifier
DAC904: 14-Bit, 165MSPS SpeedPlus(TM) DAC Scalable Current Outputs between 2mA to 20mA

More Related Products

Product Information

Features

MINIMAL BANDWIDTH CHANGE VERSUS GAIN
> 120MHz BANDWIDTH TO GAIN > +10
LOW DISTORTION: < –78dBc at 5MHz
HIGH OUTPUT CURRENT: 120mA
SINGLE +5V TO +12V SUPPLY OPERATION
DUAL ±2.5 TO ±6.0V SUPPLY OPERATION
LOW SUPPLY CURRENT: 1.7mA
LOW SHUTDOWN CURRENT: 100µA
APPLICATIONS
- LOW-POWER BROADCAST VIDEO DRIVERS
- EQUALIZING FILTERS
- SAW FILTER HIGH GAIN POST AMPLIFIERS
- MULTICHANNEL SUMMING AMPLIFIERS
- PROFESSIONAL CAMERAS
- ADC INPUT DRIVERS

All trademarks are the property of their respective owners.

Description

The OPA684 provides a new level of performance in low-power, wideband, current-feedback (CFB) amplifiers. This CFB_plus amplifier is the first to use an internally closed-loop input buffer stage that enhances performance significantly over earlier low-power CFB amplifiers. While retaining the benefits of very low power operation, this new architecture provides many of the benefits of a more ideal CFB amplifier. The closed-loop input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback error current. This improved inverting input impedance retains exceptional bandwidth to much higher gains and improves harmonic distortion over earlier solutions limited by inverting input linearity.

View All Description in Datasheet

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
OPA684ID	ACTIVE	-40 to 85	1.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
OPA684IDBVR	ACTIVE	-40 to 85	1.35 \| 1ku	SOT-23 (DBV) \| 6	View	3000 \| LARGE T&R	Purchase Samples
OPA684IDBVRG4	ACTIVE	-40 to 85	1.35 \| 1ku	SOT-23 (DBV) \| 6	View	3000 \| LARGE T&R	Purchase Samples
OPA684IDBVT	ACTIVE	-40 to 85	1.50 \| 1ku	SOT-23 (DBV) \| 6	View	250 \| SMALL T&R
OPA684IDBVTG4	ACTIVE	-40 to 85	1.50 \| 1ku	SOT-23 (DBV) \| 6	View	250 \| SMALL T&R
OPA684IDG4	ACTIVE	-40 to 85	1.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
OPA684IDR	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA684IDRG4	ACTIVE	-40 to 85	1.35 \| 1ku	SOIC (D) \| 8	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 11:46 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksOPA684ID
Americas	Rochester Electronics	>1k
Asia	WPI	>1k
Worldwide	DigiKey	148
TI Lead Time*: 20 WeeksOPA684IDBVR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA684IDBVRG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksOPA684IDBVT
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	486
Worldwide	Mouser Electronics	133
TI Lead Time*: 14 WeeksOPA684IDBVTG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA684IDG4
Europe	EBV Elektronik	75
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	25
TI Lead Time*: 20 WeeksOPA684IDR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA684IDRG4
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
OPA684ID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDBVR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDBVRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDBVT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDBVTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
OPA684IDRG4	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 OPA684

Datasheet

Low-Power, Current Feedback Operational Amplifier With Disable (Rev. D) (PDF, 712 KB)
19 Jun 2009

Application Notes

Wideband Complementary Current Output DAC Single-Ended Interface (HTM, 9 KB) 3058 views
21 Jun 2005 Read Abstract
Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Noise Analysis for High Speed Op Amps (Rev. A) (HTM, 9 KB) 7963 views
17 Jan 2005 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27183 views
24 May 2004 Read Abstract
Expanding the usability of current-feedback amplifiers (PDF, 215 KB) 3371 views
28 Feb 2005
Active filters using current-feedback amplifiers (PDF, 227 KB) 4882 views
25 Feb 2005
RLC Filter Design for ADC Interface Applications (Rev. A) (HTM, 8 KB) 3163 views
05 Jan 2005 Read Abstract
Stabilizing Current-Feedback Amps (HTM, 8 KB) 1498 views
28 Apr 2004 Read Abstract
ADS5500, OPA695: PC Board Layout for Low Distortion High-Speed ADC Drivers (HTM, 8 KB) 1901 views
22 Apr 2004 Read Abstract
Measuring Board Parasitics in High-Speed Analog Design (HTM, 8 KB) 2057 views
07 Jul 2003 Read Abstract
AB-172: Current Feedback Amplifiers: Review, Stability Analysis,and Applications (HTM, 8 KB) 2066 views
20 Nov 2000 Read Abstract
Tuning in Amplifiers (HTM, 8 KB) 9032 views
02 Oct 2000 Read Abstract
Single-Supply Operation of Operational Amplifiers (HTM, 8 KB) 10762 views
02 Oct 2000 Read Abstract
Op Amp Performance Analysis (HTM, 8 KB) 7771 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22501 views
02 Oct 2000 Read Abstract

User Guides

DEM-OPA-SO-1A User's Guide (Rev. A) (PDF, 110 KB) 2304 views
16 Mar 2006
DEM-OPA-SOT-1A User's Guide (Rev. A) (PDF, 111 KB) 1573 views
22 Mar 2006

Tools & Software

Name	Part #	Company	Tool / Software Type
Fully Differential Amplifier Component Calculator	FULLDIFFAMP-CALC	Texas Instruments	Calculation Utilities
Voltage Divider Determines A Set of Resistors for a Voltage Divider	VOLT-DIVIDER-CALC	Texas Instruments	Calculation Utilities
Wideband Comp Current Output DAC to SE Interface: Impr Matching for Gain & Compliance Volt Swing	MATCHGAIN-CALC	Texas Instruments	Calculation Utilities
DEM-OPA-SO-1A Unpopulated PCB Compatible w/High Speed Wide Bandwidth Op Amps in 8-lead SOIC (D) Pkg	DEM-OPA-SO-1A	Texas Instruments	Development Boards/EVMs
Unpopulated PCB Compatible w/High Speed, Wide Bandwidth Op Amps in SOT(DBV) Pkg	DEM-OPA-SOT-1A	Texas Instruments	Development Boards/EVMs
SPICE-Based Analog Simulation Program	TINA-TI	Texas Instruments	Simulators
MDACBufferPro(TM) Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
Active Filter Design Application	FILTERPRO	Texas Instruments	Application Software

Simulation Models

PSpice Model
- OPAy684 PSpice Model (ZIP, 2 KB) 363 views
  13 Aug 2002
TINA-TI Reference Design
- OPA684 TINA-TI Reference Design (Rev. A) (TSC, 61 KB) 151 views
  18 Jan 2009
TINA-TI Spice Model
- OPA684 TINA-TI Spice Model (TSM, 7 KB) 36 views
  18 Jan 2009

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
THS3001	420-MHz Current-Feedback Amplifier	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
THS3091	Single- High-Voltage, Low Distortion, Current-Feedback Operational Amplifier	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
OPA695	Ultra-Wideband, Current-Feedback Operational Amplifier with Disable	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
OPA683	Very Low Power Current Feedback Amplifier with Disable	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
OPA691	Wideband Current Feedback Operational Amplifier with Disable	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
TL3116	Ultra-Fast Low-Power Precision Comparator	AMPLIFIERS AND LINEAR-COMPARATOR	TI customers also evaluated this product.
OPA820	Unity Gain Stable,Low Noise,Voltage Feedback Operational Amplifier	HIGH SPEED AMPLIFIER-VOLTAGE FEEDBACK	TI customers also evaluated this product.
DAC904	14-Bit, 165MSPS SpeedPlus(TM) DAC Scalable Current Outputs between 2mA to 20mA	DATA CONVERTERS-DIGITAL TO ANALOG CONVERTER	TI customers also evaluated this product.
OPA690	Wideband, Voltage Feeback Operational Amplifier With Disable	HIGH SPEED AMPLIFIER-VOLTAGE FEEDBACK	TI customers also evaluated this product.
OPA656	Wideband, Unity Gain Stable FET-Input Operational Amplifier	HIGH SPEED AMPLIFIER-JFET/CMOS	TI customers also evaluated this product.
OPA627	Precision High-Speed Difet(R) Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.

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OPA684 Status: ACTIVE

Low-Power, Current Feedback Operational Amplifier With Disable

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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

User Guides

Tools & Software

Simulation Models

Support and Community

Customer Tags

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