OPA228 Status: ACTIVE

High Precision, Low Noise Operational Amplifiers

Burr-Brown

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Datasheet

High Precision, Low Noise Operational Amplifiers (Rev. A) (opa228.pdf, 790 KB)
07 Jan 2005 Download

	OPA2227	OPA2228	OPA227	OPA228	OPA4227	OPA4228
Number of Channels	2	2	1	1	4	4
Total Supply Voltage (V)(Min)(+5V=5, +/-5V=10)	5	5	5	5	5	5
Total Supply Voltage (V)(Max)(+5V=5, +/-5V=10)	36	36	36	36	36	36
Iq per channel(Max)(mA)	3.8	3.8	3.8	3.8	3.8	3.8
GBW(Typ)(MHz)	8	33	8	33	8	33
Slew Rate(Typ)(V/us)	2.3	11	2.3	11	2.3	11
VIO (25 deg C)(Max)(mV)	0.075	0.75	0.75	0.75	0.2	0.2
Offset Drift(Typ)(uV/C)	0.1	0.1	0.1	0.1	0.3	0.3
IIB(Max)(pA)	10000	10000	10000	10000	10000	10000
CMRR(Min)(dB)	120	120	120	120	120	120
Vn at 1kHz(Typ)(nV/rtHz)	3	3	3	3	3	3
Rating	Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
Pin/Package	8PDIP,8SOIC	8PDIP,8SOIC	8PDIP,8SOIC	8PDIP,8SOIC	14PDIP,14SOIC	14PDIP,14SOIC
Operating Temp Range(Celsius)	-40 to 85
Approx. Price (US$)	1.85 \| 1ku	1.85 \| 1ku	1.10 \| 1ku	1.10 \| 1ku	4.05 \| 1ku	4.05 \| 1ku
	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

OPA627: Precision High-Speed Difet(R) Operational Amplifiers
OPA211: 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package
OPA277: High Precision Operational Amplifiers
OPA134: SoundPlus(TM) High Performance Audio Operational Amplifiers
RCV420: Precision 4mA to 20mA Current Loop Receiver
OPA1632: Fully Differential I/O Audio Amplifier

More Related Products

Product Information

Features

LOW NOISE: 3nV/(Hz)
WIDE BANDWIDTH:
- OPA227: 8MHz, 2.3V/µs
- OPA228: 33MHz, 10V/&#micro;s
SETTLING TIME: 5µs (significant improvement over OP-27)
HIGH CMRR: 138dB
HIGH OPEN-LOOP GAIN: 160dB
LOW INPUT BIAS CURRENT: 10nA max
LOW OFFSET VOLTAGE: 75µV max
WIDE SUPPLY RANGE: ±2.5V to ±18V
OPA227 REPLACES OP-27, LT1007, MAX427
OPA228 REPLACES OP-37, LT1037, MAX437
SINGLE, DUAL, AND QUAD VERSIONS
APPLICATIONS
- DATA ACQUISITION
- TELECOM EQUIPMENT
- GEOPHYSICAL ANALYSIS
- VIBRATION ANALYSIS
- SPECTRAL ANALYSIS
- PROFESSIONAL AUDIO EQUIPMENT
- ACTIVE FILTERS
- POWER SUPPLY CONTROL

SPICE model available for OPA227 at www.ti.com
All trademarks are the property of their respective owners.

Description

The OPA227 and OPA228 series op amps combine low noise and wide bandwidth with high precision to make them the ideal choice for applications requiring both ac and precision dc performance.

The OPA227 is unity gain stable and features high slew rate (2.3V/&micor;s) and wide bandwidth (8MHz). The OPA228 is optimized for closed-loop gains of 5 or greater, and offers higher speed with a slew rate of 10V/µs and a bandwidth of 33MHz.

The OPA227 and OPA228 series op amps are ideal for professional audio equipment. In addition, low quiescent current and low cost make them ideal for portable applications requiring high precision.

The OPA227 and OPA228 series op amps are pin-for-pin replacements for the industry standard OP-27 and OP-37 with substantial improvements across the board. The dual and quad versions are available for space savings and per-channel cost reduction.

The OPA227, OPA228, OPA2227, and OPA2228 are available in DIP-8 and SO-8 packages. The OPA4227 and OPA4228 are available in DIP-14 and SO-14 packages with standard pin configurations. Operation is specified from –40°C to +85°C.

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
OPA228P	ACTIVE	2.35 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
OPA228PA	ACTIVE	1.10 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
OPA228PAG4	ACTIVE	1.10 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE	Contact TI Distributor or Sales Office
OPA228PG4	ACTIVE	2.35 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE	Contact TI Distributor or Sales Office
OPA228U	ACTIVE	2.35 \| 1ku	SOIC (D) \| 8	View	100 \| TUBE	Contact TI Distributor or Sales Office
OPA228UA	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	100 \| TUBE
OPA228UA/2K5	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA228UA/2K5E4	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA228UAG4	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	100 \| TUBE	Contact TI Distributor or Sales Office
OPA228UG4	ACTIVE	2.35 \| 1ku	SOIC (D) \| 8	View	100 \| 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
OPA228P	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6916 \| 26 Feb	16 Weeks	Americas	DigiKey	132
		>10k \| 13 Apr			Mouser Electronics	133
					Newark	134
					Rochester Electronics	>1k
				Asia	WPI	78
OPA228PA	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	9061 \| 26 Feb	16 Weeks	Americas	DigiKey	53
		>10k \| 13 Apr			Newark	250
					Rochester Electronics	>1k
				Asia	WPI	34
				Europe	Farnell	260
OPA228PAG4	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	9061 \| 26 Feb	16 Weeks	None Reported View Distributors
	0*	>10k \| 13 Apr	16 Weeks
OPA228PG4	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	6916 \| 26 Feb	16 Weeks	None Reported View Distributors
	0*	>10k \| 13 Apr	16 Weeks
OPA228U	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	16 Weeks	Americas	DigiKey	188
				Americas	Rochester Electronics	87
				Asia	WPI	69
				Europe	Arrow Northern Europe	300
OPA228UA	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	16 Weeks	Americas	Mouser Electronics	475
				Americas	Rochester Electronics	5
				Asia	WPI	70
				Europe	Farnell	46
OPA228UA/2K5	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	16 Weeks	None Reported View Distributors
OPA228UA/2K5E4	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	16 Weeks	None Reported View Distributors
OPA228UAG4	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	16 Weeks	None Reported View Distributors
OPA228UG4	As of 9:57 AM GMT, 20 Nov 2008			As of 9:57 AM GMT, 20 Nov 2008
	In Stock	In Progress QTY \| Date	Lead Time	Region	Company	In Stock	Purchase
	0*	>10k \| 26 Feb	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
OPA228P	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA228PA	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA228PAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA228PG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA228U	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA228UA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA228UA/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA228UA/2K5E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA228UAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA228UG4	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

High Precision, Low Noise Operational Amplifiers (Rev. A) (opa228.pdf, 790 KB)
07 Jan 2005 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
Tuning in Amplifiers (sboa067.htm, 8 KB)
02 Oct 2000 Abstract
Single-Supply Operation of Operational Amplifiers (sboa059.htm, 8 KB)
02 Oct 2000 Abstract
Op Amp Performance Analysis (sboa054.htm, 8 KB)
02 Oct 2000 Abstract
High Speed Data Conversion (sbaa045.htm, 8 KB)
02 Oct 2000 Abstract

Simulation Models

Spice Model
- OPA228 TINA Macro Model and Test Circuit (sboc189.zip, 13 KB)
  29 Aug 2006 zip
PSpice Model
- OPA228 PSpice Model (sbom144.zip, 3 KB)
  14 Jun 2002 zip

Tools & Software

Name	Part #	Company	Tool / Software Type
Analog Filter Design	FILTER-DESIGNER	Texas Instruments	Analysis Software
Automatic Resistor/Capacitor Calculator for Passive Filters	RC-FILTER-CALC	Texas Instruments	Calculation Utilities
Decibel Calculator	DECIBEL-CALC	Texas Instruments	Calculation Utilities
Design Methodology for MFB Filters in ADC Interface Applications	MFBFILTER-CALC	Texas Instruments	Calculation Utilities
Frequency/Wavelength Calculator	FREQ-WAVE-CALC	Texas Instruments	Calculation Utilities
Noise Calculator, Generator and Examples	OPAMP-NOISECALC	Texas Instruments	Calculation Utilities
Op Amp Gain Stage Calculator	GAIN-STAGE-CALC	Texas Instruments	Calculation Utilities
Resistor Calculator for Op Amp Gain and Zero Shift	RESISTOR-CALC	Texas Instruments	Calculation Utilities
Universal EVM for Single/Dual OpAmps without Shutdown in MSOP/SOIC/SOT-23 Packages	OPAMPEVM-SOT23	Texas Instruments	Development Boards/EVMs
SPICE-Based Analog Simulation Program	TINA-TI	Texas Instruments	Simulators
MDACBufferPro Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
Active Filter Design Application	FILTERPRO	Texas Instruments	Application Software

Alternative Products - Are similar to OPA228
Part #	Name	Comments
OPA227	High Precision, Low Noise Operational Amplifiers	Same as OPA228 but with GBW of 8MHz
OPA177	Precision Operational Amplifier	Similar to OPA228 with 0.025mV VIO, 2mA Iq, and 0.6MHz GBW
OPA637	Precision High-Speed Difet(R) Operational Amplifiers	Similar to OPA228 with 7.5 mA Iq, 0.1mV VIO and 80MHz GBW
Customers Who Evaluated This Product Also Evaluated...
OPA627	Precision High-Speed Difet(R) Operational Amplifiers	TI customers also evaluated this product.
OPA211	1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package	TI customers also evaluated this product.
OPA277	High Precision Operational Amplifiers	TI customers also evaluated this product.
OPA637	Precision High-Speed Difet(R) Operational Amplifiers	TI customers also evaluated this product.
OPA227	High Precision, Low Noise Operational Amplifiers	TI customers also evaluated this product.
OPA2228	High Precision, Low Noise Operational Amplifiers	TI customers also evaluated this product.
OPA2132	High Speed FET-Input Operational Amplifiers	TI customers also evaluated this product.
OPA2211	1.1nV/rtHz Low Noise, Low Power, Precision Operational Amplifier	TI customers also evaluated this product.
OPA132	High Speed FET-Input Operational Amplifiers	TI customers also evaluated this product.
OPA365	2.2V, 50MHz, Low-Noise, Single-Supply Rail-to-Rail Operational Amplifier	TI customers also evaluated this product.

Complementary Products - Can be used with OPA228
Customers Who Evaluated This Product Also Evaluated...
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