INA2128 Status: ACTIVE

Dual, Low Power Instrumentation Amplifier

Burr-Brown

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Datasheet

Dual, Low Power Instrumentation Amplifier (Rev. A) (ina2128.pdf, 542 KB)
25 Apr 2007 Download

	INA2128
Number of Channels	2
Gain(V/V)	1 to 10000
Input Offset (+/-)(Max)(uV)	50
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)	0.5
CMRR(Min)(dB)	120
Vs(Min)(V)	4.5
Vs(Max)(V)	36
Quiescent Current (+/-)(Typ)(mA)	0.7
Pin/Package	16SOIC
	Samples
	Inventory

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Product Information

Features

LOW OFFSET VOLTAGE: 50µV max
LOW DRIFT: 0.5µV/°C max
LOW INPUT BIAS CURRENT: 5nA max
HIGH CMR: 120dB min
INPUTS PROTECTED to ±40V
WIDE SUPPLY RANGE: ±2.25V to ±18V
LOW QUIESCENT CURRENT: 700µA / IA
16-PIN PLASTIC DIP, SOL-16
APPLICATIONS
- SENSOR AMPLIFIER THERMOCOUPLE, RTD, BRIDGE
- MEDICAL INSTRUMENTATION
- MULTIPLE-CHANNEL SYSTEMS
- BATTERY OPERATED EQUIPMENT

All trademarks are the property of their respective owners.

Description

The INA2128 is a dual, low power, general purpose instrumentation amplifier offering excellent accuracy. Its versatile 3-op amp design and small size make it ideal for a wide range of applications. Current-feedback input circuitry provides wide bandwidth even at high gain (200kHz at G = 100).

A single external resistor sets any gain from 1 to 10,000. Internal input protection can withstand up to ±40V without damage.

The INA2128 is laser trimmed for very low offset voltage (50µV), drift (0.5µV/°C) and high common-mode rejection (120dB at G ≥ 100). It operates with power supplies as low as ±2.25V, and quiescent current is only 700µA per IA—ideal for battery operated and multiple-channel systems.

The INA2128 is available in 16-pin plastic DIP, and SOL-16 surface-mount packages, specified for the -40°C to +85°C temperature range.

Pricing / Packaging / CAD Design Tools / Samples

		Price	Packaging			CAD Design Tools		Samples
Device	Status	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
INA2128U	ACTIVE	7.85 \| 1ku	SOIC (DW) \| 16	View	48 \| TUBE	Contact TI Distributor or Sales Office
INA2128U/1K	ACTIVE	7.85 \| 1ku	SOIC (DW) \| 16	View	1000 \| LARGE T&R	Purchase Samples
INA2128U/1KE4	ACTIVE	7.85 \| 1ku	SOIC (DW) \| 16	View	1000 \| LARGE T&R	Purchase Samples
INA2128UA	ACTIVE	4.90 \| 1ku	SOIC (DW) \| 16	View	48 \| TUBE
INA2128UA/1K	ACTIVE	4.90 \| 1ku	SOIC (DW) \| 16	View	1000 \| LARGE T&R	Purchase Samples
INA2128UA/1KG4	ACTIVE	4.90 \| 1ku	SOIC (DW) \| 16	View	1000 \| LARGE T&R	Purchase Samples
INA2128UAG4	ACTIVE	4.90 \| 1ku	SOIC (DW) \| 16	View	48 \| TUBE	Contact TI Distributor or Sales Office
INA2128UG4	ACTIVE	7.85 \| 1ku	SOIC (DW) \| 16	View	48 \| TUBE	Contact TI Distributor or Sales Office

* 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
INA2128U	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	Europe	Avnet-SILICA	358
INA2128U/1K	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	None Reported View Distributors
INA2128U/1KE4	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	None Reported View Distributors
INA2128UA	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	Americas	DigiKey	96
					Newark	432
					Rochester Electronics	428
				Asia	WPI	480
				Europe	Avnet-SILICA	>1k
INA2128UA/1K	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	Americas	Rochester Electronics	544
INA2128UA/1KG4	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	None Reported View Distributors
INA2128UAG4	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 Weeks	None Reported View Distributors
INA2128UG4	As of 9:04 AM GMT, 12 Oct 2008			As of 9:04 AM GMT, 12 Oct 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 19 Jan	16 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
INA2128U	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128U/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128U/1KE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128UA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128UA/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128UA/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128UAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA2128UG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 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

Datasheets

Dual, Low Power Instrumentation Amplifier (Rev. A) (ina2128.pdf, 542 KB)
25 Apr 2007 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

Simulation Models

PSpice Model
- INA128 PSpice Macromodel (sbom022.zip, 8 KB)
  25 Oct 2000 zip

More Literature

View More Literature for Difference Amplifiers

Tools & Software

Name	Part #	Company	Tool / Software Type
Calculate Input Common-Mode Range of Instrumentation Amplifiers	INA-CMV-CALC	Texas Instruments	Calculation Utilities
Fully Differential Amplifier Component Calculator	FULLDIFFAMP-CALC	Texas Instruments	Calculation Utilities
SPICE-Based Analog Simulation Program	TINA-TI	Texas Instruments	Simulators
MDACBufferPro Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
INA Common-Mode-Range Design Utility(sboc004.zip, 77 KB ) 14 Apr 2003 zip

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