THS3121 Status: ACTIVE

Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier

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Datasheet

Low-Noise, High-Output Drive, Current Feedback Operational Amplifiers (Rev. E) (PDF 1028 KB)
12 Oct 2009

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	THS3120	THS3121
Iq per channel(Max)(mA)	11
Slew Rate(Typ)(V/us)	1700	1700
Io(Typ)(mA)	475	475
Vs(Min)(V)	10	10
Vs(Max)(V)	30	30
Number of Channels	1	1
Pin/Package	8MSOP-PowerPAD, 8SOIC	8MSOP-PowerPAD, 8SOIC
Acl, min stable gain(V/V)	1	1
BW @ Acl(MHz)	130	130
Diff Gain(%)	0.007	0.007
Diff Phase(deg)	0.018	0.018
Vio(Max)(mV)	8	8
THD (Fc=1 MHz)(Typ)(dB)	-78	-78
Settling Time (0.1%)(Typ)(ns)	11	11
Offset Voltage Drift (+/-)(Max)(uV/Degrees Celsius)	10	10
Available Channels	S	S
Vn at Flatband(Typ)(nV/rtHz)	2.5	2.5
Approx. Price (US$)	1.85 \| 1ku	2.25 \| 1ku
Iib(Max)(nA)	6000	6000
Noninverting Input Current Noise(pA/rtHz)	1	1
2nd Harmonic(dBc)	51	51
3rd Harmonic(dBc)	50	50
@ Mhz	10	10
BW @ G=+2(MHz)	120	120
0.1 dB BW Flatness(MHz)	90	90
Inverting Input Current Noise(pA/rtHz)	10	10
Operating Temp Range(Celsius)	-40 to 85	-40 to 85
	Samples	Samples
	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

THS3120: Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier with Power-down
OPA842: Wideband, Low Distortion, Unity Gain Stable, Voltage Feedback Operational Amplifier

Product Information

Features

Low Noise:
- 1 pA/√Hz Noninverting Current Noise
- 10 pA/√Hz Inverting Current Noise
- 2.5 nV/√Hz Voltage Noise
High Output Current Drive: 475 mA
High Slew Rate:
- 1700 V/µs (R_L = 50 , V_O = 8 V_PP)
Wide Bandwidth: 120 MHz (G = 2, R_L = 50 )
Wide Supply Range: ±5 V to ±15 V
Power-Down Feature: (THS3120 Only)
APPLICATIONS
- Video Distribution
- Power FET Driver
- Pin Driver
- Capacitive Load Driver

All trademarks are the property of their respective owners.

Description

The THS3120 and THS3121 are low-noise, high-voltage, high output current drive, current-feedback amplifiers designed to operate over a wide supply range of ±5 V to ±15 V for today's high-performance applications.

The THS3120 offers a power saving mode by providing a power-down pin for reducing the 7-mA quiescent current of the device, when the device is not active.

These amplifiers provide well-regulated ac performance characteristics. Most notably, the 0.1-dB flat bandwidth is exceedingly high, reaching beyond 90 MHz. The unity-gain bandwidth of 130 MHz allows for good distortion characteristics at 10 MHz. Coupled with high 1700-V/µs slew rate, the THS3120 and THS3121 amplifiers allow for high output voltage swings at high frequencies.

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
THS3121CD	ACTIVE	-40 to 85	2.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
THS3121CDG4	ACTIVE	-40 to 85	2.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Purchase Samples
THS3121CDGN	ACTIVE	-40 to 85	2.50 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
THS3121CDGNG4	ACTIVE	-40 to 85	2.50 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE		Purchase Samples
THS3121CDGNR	ACTIVE	-40 to 85	2.25 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
THS3121CDGNRG4	ACTIVE	-40 to 85	2.25 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
THS3121CDR	ACTIVE	-40 to 85	2.25 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
THS3121CDRG4	ACTIVE	-40 to 85	2.25 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
THS3121DGN	PREVIEW	-40 to 85		MSOP-PowerPAD (DGN) \| 8	View			Not Available
THS3121DGNR	PREVIEW	-40 to 85		MSOP-PowerPAD (DGN) \| 8	View			Not Available
THS3121ID	ACTIVE	-40 to 85	2.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
THS3121IDG4	ACTIVE	-40 to 85	2.50 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
THS3121IDGN	ACTIVE	-40 to 85	2.50 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
THS3121IDGNG4	ACTIVE	-40 to 85	2.50 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	80 \| TUBE
THS3121IDGNR	ACTIVE	-40 to 85	2.25 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
THS3121IDGNRG4	ACTIVE	-40 to 85	2.25 \| 1ku	MSOP-PowerPAD (DGN) \| 8	View	2500 \| LARGE T&R		Purchase Samples
THS3121IDR	ACTIVE	-40 to 85	2.25 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
THS3121IDRG4	ACTIVE	-40 to 85	2.25 \| 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 10:46 AM GMT, 25 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTHS3121CD
Americas	Rochester Electronics	>1k
Worldwide	Mouser Electronics	145
TI Lead Time*: 20 WeeksTHS3121CDG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121CDGN
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121CDGNG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121CDGNR
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121CDGNRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121CDR
Americas	Avnet	>1k
TI Lead Time*: 20 WeeksTHS3121CDRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTHS3121ID
Americas	Avnet	1
	Newark	74
	Rochester Electronics	>1k
Asia	Farnell Asia	148
Asia	WPI	101
Europe	Abacus Polar	50
Europe	Farnell	137
Worldwide	DigiKey	104
Worldwide	Mouser Electronics	91
TI Lead Time*: 20 WeeksTHS3121IDG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksTHS3121IDGN
Americas	Avnet	80
	Newark	151
	Rochester Electronics	>1k
Asia	Farnell Asia	151
Asia	WPI	50
Worldwide	DigiKey	49
TI Lead Time*: 14 WeeksTHS3121IDGNG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTHS3121IDGNR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTHS3121IDGNRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTHS3121IDR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTHS3121IDRG4
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
THS3121CD	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121CDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121ID	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDGN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDGNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDGNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDGNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	View	View
THS3121IDRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-1-260C-UNLIM	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 THS3121

Datasheet

Low-Noise, High-Output Drive, Current Feedback Operational Amplifiers (Rev. E) (PDF, 1028 KB)
12 Oct 2009

Application Notes

Wideband Complementary Current Output DAC Single-Ended Interface (HTM, 9 KB) 3071 views
21 Jun 2005 Read Abstract
Noise Analysis for High Speed Op Amps (Rev. A) (HTM, 9 KB) 7989 views
17 Jan 2005 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27271 views
24 May 2004 Read Abstract
Expanding the usability of current-feedback amplifiers (PDF, 215 KB) 3387 views
28 Feb 2005
Active filters using current-feedback amplifiers (PDF, 227 KB) 4914 views
25 Feb 2005

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
THS3110 Evaluation Module	THS3110EVM	Texas Instruments	Development Boards/EVMs
THS3111 Evaluation Module	THS3111EVM	Texas Instruments	Development Boards/EVMs
THS3120 Evaluation Module	THS3120EVM	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
- THS3121 PSpice Model (ZIP, 2 KB) 254 views
  13 Feb 2006

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
THS3120	Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier with Power-down	HIGH SPEED AMPLIFIER-CURRENT FEEDBACK	TI customers also evaluated this product.
OPA842	Wideband, Low Distortion, Unity Gain Stable, Voltage Feedback Operational Amplifier	HIGH SPEED AMPLIFIER-VOLTAGE FEEDBACK	TI customers also evaluated this product.

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THS3121 Status: ACTIVE

Single, Low Noise, High Output Drive, 475mA Current-Feedback Amplifier

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Customers Who Evaluated This Product Also Evaluated