INA333 Status: ACTIVE

Low Power, Precision Instrumentation Amplifier

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Datasheet

Micro-Power (50μA), Zerø-Drift, Rail-to-Rail Out Instrumentation Amplifier (Rev. B) (ina333.pdf, 662 KB)
30 Oct 2008 Download

	INA333
CMRR(Min)(dB)	100
Number of Channels	1
Pin/Package	8MSOP,8SON
Input Offset (+/-)(Max)(uV)	25
Input Offset Drift (+/-)(Max)(uV/Degrees Celsius)	0.1
Input Bias Current (+/-)(Max)(nA)	0.2
Noise at 1kHz(Typ)(nV/rt(Hz))	50
Quiescent Current (+/-)(Typ)(mA)	0.05
Settling Time to 0.01%(Typ)(us)	50
Gain(V/V)	1 to 1000
Input Type	CMOS
Output Offset (+/-)(Max)(uV)	75/G
Output Offset Drift (+/-)(Max)(uV/Degrees Celsius)	0.5/G
Operating Temp Range(Celsius)	-40 to 125
Vs(Min)(V)	1.8
Vs(Max)(V)	5.5
	Samples
	Inventory

Customers Who Evaluated This Product Also Evaluated

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OPA333: 1.8V, 17uA, 2uV, microPOWER CMOS Zero-Drift Series Operational Amplifier
INA128: Precision, Low Power Instrumentation Amplifiers

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Product Information

Features

LOW OFFSET VOLTAGE: 25µV (max), G ≥ 100
LOW DRIFT: 0.1µV/°C, G ≥ 100
LOW NOISE: 50nV/√Hz, G ≥ 100
HIGH CMRR: 100dB (min), G ≥ 10
LOW INPUT BIAS CURRENT: 200pA(max)
SUPPLY RANGE: +1.8V to +5.5V
INPUT VOLTAGE: (V-) +0.1V to (V+) -0.1V
OUTPUT RANGE: (V-) +0.05V to (V+) -0.05V
LOW QUIESCENT CURRENT: 50µA
OPERATING TEMPERATURE: -40°C to +125°C
RFI FILTERED INPUTS
MSOP-8 AND DFN-8 PACKAGES
APPLICATIONS
- BRIDGE AMPLIFIERS
- ECG AMPLIFIERS
- PRESSURE SENSORS
- MEDICAL INSTRUMENTATION
- PORTABLE INSTRUMENTATION
- WEIGH SCALES
- THERMOCOUPLE AMPLIFIERS
- RTD SENSOR AMPLIFIERS
- DATA ACQUISITION

Description

The INA333 is a low-power, precision instrumentationamplifier offering excellent accuracy. The versatile 3-op amp design, small size, and low power make it ideal for a wide range of portable applications.

A single external resistor sets any gain from 1 to 1000. The INA333 is designed to use an industry-standard gain equation: G = 1 + (100kΩ/R_G).

The INA333 provides very low offset voltage (25µV, G ≥ 100), excellent offset voltage drift (0.1µV/°C, G ≥ 100), and high common-mode rejection (100dB at G ≥ 10). It operates with power supplies as low as 1.8V (±0.9V), and quiescent current is only 50µA—ideal for battery-operated systems. Using autocalibration techniques to ensure excellent precision over the extended industrial temperature range, the INA333 also offers exceptionally low noise density (50nV/√Hz) that extends down to dc.

The INA333 is available in both MSOP-8 and DFN-8 surface-mount packages and is specified over the T_A = -40°C to +125°C temperature range.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Samples
INA333AIDGKR	ACTIVE	-40 to 125	1.80 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
INA333AIDGKRG4	ACTIVE	-40 to 125	1.80 \| 1ku	MSOP (DGK) \| 8	View	2500 \| LARGE T&R
INA333AIDGKT	ACTIVE	-40 to 125	2.00 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
INA333AIDGKTG4	ACTIVE	-40 to 125	2.00 \| 1ku	MSOP (DGK) \| 8	View	250 \| SMALL T&R	Purchase Samples
INA333AIDRGR	PREVIEW	-40 to 125		SON (DRG) \| 8		1000	Not Available
INA333AIDRGT	PREVIEW	-40 to 125		SON (DRG) \| 8		250	Not Available

* 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
INA333AIDGKR	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2500*	1899 \| 12 Jan	4 Weeks	Americas	Arrow	>1k
		749 \| 9 Feb			Avnet	>1k
		>10k \| 16 Feb			DigiKey	>1k
					Mouser Electronics	81
					Newark	>1k
INA333AIDGKRG4	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	2500*	1899 \| 12 Jan	4 Weeks	None Reported View Distributors
		749 \| 9 Feb
		>10k \| 16 Feb
INA333AIDGKT	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 16 Feb	4 Weeks	Americas	DigiKey	25
INA333AIDGKTG4	As of 10:03 AM GMT, 09 Jan 2009			As of 10:03 AM GMT, 09 Jan 2009
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	>10k*	>10k \| 16 Feb	4 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
INA333AIDGKR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
INA333AIDGKRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
INA333AIDGKT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
INA333AIDGKTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
INA333AIDRGR					View
INA333AIDRGT					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

Micro-Power (50μA), Zerø-Drift, Rail-to-Rail Out Instrumentation Amplifier (Rev. B) (ina333.pdf, 662 KB)
30 Oct 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

Simulation Models

Spice Model
- INA333 Tina Macro Model and Test Circuit (Preliminary) (sboc264.zip, 49 KB)
  09 Jul 2008 zip

More Literature

INA333 Videocast [WMV] (sboc267.wmv, 11533 KB)
05 Aug 2008 wmv

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 Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software

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Part #	Name	Comments
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Complementary Products - Can be used with INA333
Part #	Name	Product Family	Comments
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