INA129 Status: ACTIVE

Precision, Low Power Instrumentation Amplifiers

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Datasheet

Precision, Low Power Instrumentation Amplifiers (Rev. B) (PDF 1487 KB)
24 Feb 2005

	INA128	INA129
Gain(V/V)	1 to 10000	1 to 10000
Non-Linearity (+/-)(Max)(%)	0.012	0.002
Input Bias Current (+/-)(Max)(nA)	5	5
Output Offset (+/-)(Max)(uV)		500/G
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)	0.5	0.5
Output Offset Drift (+/-)(Max)(uV/Degrees Celsius)	20/G	20/G
CMRR(Min)(dB)	120	120
Bandwidth at G=100(Min)(kHz)	200	200
Noise at 1kHz(Typ)(nV/rt(Hz))	8	8
Vs(Min)(V)	4.5	4.5
Vs(Max)(V)	36	36
Quiescent Current (+/-)(Typ)(mA)	0.7	0.7
Pin/Package	8PDIP, 8SOIC	8PDIP, 8SOIC
	Samples	Samples
	Inventory	Inventory

Other qualified versions of INA129

Version	Part Number	Definition
Enhanced Product	INA129-EP	Supports Defense, Aerospace and Medical Applications

Customers Who Evaluated This Product Also Evaluated

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INA101: Very High Accuracy Instrumentation Amplifier
INA121: FET-Input, Low Power Instrumentation Amplifier
INA333: Low Power, Precision Instrumentation Amplifier
INA118: Precision, Low Power Instrumentation Amplifier
DAC902: 12-Bit, 165MSPS SpeedPlus(TM) DAC Scalable Current Outputs between 2mA to 20mA

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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
8-PIN PLASTIC DIP, SO-8
APPLICATIONS
- BRIDGE AMPLIFIER
- THERMOCOUPLE AMPLIFIER
- RTD SENSOR AMPLIFIER
- MEDICAL INSTRUMENTATION
- DATA ACQUISITION

All trademarks are the property of their respective owners.

Description

The INA128 and INA129 are low power, general purpose instrumentation amplifiers offering excellent accuracy. The versatile 3-op amp design and small size make them 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. The INA128 provides an industry-standard gain equation; the INA129 gain equation is compatible with the AD620.

The INA128/INA129 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—ideal for battery-operated systems.

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
INA129P	ACTIVE		4.90 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
INA129PA	ACTIVE		4.45 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
INA129PAG4	ACTIVE		4.45 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
INA129PG4	ACTIVE		4.90 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
INA129U	ACTIVE		5.35 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
INA129U/2K5	ACTIVE		4.90 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
INA129U/2K5G4	ACTIVE		4.90 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
INA129UA	ACTIVE	-40 to 125	4.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
INA129UA/2K5	ACTIVE	-40 to 125	4.45 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
INA129UA/2K5E4	ACTIVE	-40 to 125	4.45 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
INA129UA/2K5G4	ACTIVE	-40 to 125	4.45 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
INA129UAE4	ACTIVE	-40 to 125	4.90 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
INA129UG4	ACTIVE		5.35 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE

* 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 11:57 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 14 WeeksINA129P
Americas	Avnet	96
	Newark	100
	Rochester Electronics	>1k
Asia	Farnell Asia	152
Asia	WPI	53
Europe	Compel	134
Europe	Farnell	132
Worldwide	DigiKey	1
Worldwide	Mouser Electronics	38
TI Lead Time*: 14 WeeksINA129PA
Americas	Arrow	>1k
	Newark	614
	Rochester Electronics	>1k
Asia	WPI	81
Europe	Spoerle	4
Worldwide	DigiKey	265
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 14 WeeksINA129PAG4
Europe	Compel	237
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	612
TI Lead Time*: 14 WeeksINA129PG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksINA129U
Asia	Farnell Asia	395
Europe	Avnet-SILICA	8
Europe	Compel	48
TI Lead Time*: 20 WeeksINA129U/2K5
None Reported View Distributors
TI Lead Time*: 20 WeeksINA129U/2K5G4
None Reported View Distributors
TI Lead Time*: 20 WeeksINA129UA
Americas	Arrow	>1k
	Avnet	>1k
	Newark	130
	Rochester Electronics	322
Asia	WPI	148
Europe	Abacus Polar	68
	Arrow Southern Europe	45
	Avnet-SILICA	39
Worldwide	DigiKey	120
Worldwide	Mouser Electronics	190
TI Lead Time*: 20 WeeksINA129UA/2K5
Americas	Arrow	>1k
Europe	Compel	6
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksINA129UA/2K5E4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksINA129UA/2K5G4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksINA129UAE4
Americas	Avnet	19
Asia	Farnell Asia	704
Europe	Farnell	674
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	323
TI Lead Time*: 20 WeeksINA129UG4
None Reported View Distributors
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
INA129P	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
INA129PA	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
INA129PAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
INA129PG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
INA129U	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129U/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129U/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UA/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UA/2K5E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UA/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UAE4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
INA129UG4	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

Most useful technical documents for INA129

Datasheet

Precision, Low Power Instrumentation Amplifiers (Rev. B) (PDF, 1487 KB)
24 Feb 2005

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 15987 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27183 views
24 May 2004 Read Abstract

Tools & Software

Name	Part #	Company	Tool / Software Type
Calculate Input Common-Mode Range of Instrumentation Amplifiers	INA-CMV-CALC	Texas Instruments	Calculation Utilities
SPICE-Based Analog Simulation Program	TINA-TI	Texas Instruments	Simulators
MDACBufferPro(TM) Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
INA Common-Mode-Range Design Utility(ZIP 77 KB ) 5187 views 14 Apr 2003

Simulation Models

PSpice Model
- INA129 PSpice Model (ZIP, 9 KB) 403 views
  25 Oct 2000
TINA-TI Reference Design
- INA129 TINA-TI Reference Design (Rev. A) (TSC, 56 KB) 208 views
  19 Jan 2009
TINA-TI Spice Model
- INA129 TINA-TI Spice Model (TSM, 10 KB) 41 views
  19 Jan 2009

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INA129 Status: ACTIVE

Precision, Low Power Instrumentation Amplifiers

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Datasheet

Other qualified versions of INA129

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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