OPA228 Status: ACTIVE

High Precision, Low Noise Operational Amplifiers

Alert me about changes<br/>to this product

Alert me about changes
to this product

Datasheet

High Precision, Low Noise Operational Amplifiers (Rev. A) (PDF 791 KB)
07 Jan 2005

	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

OPA227: High Precision, Low Noise Operational Amplifiers
OPA627: Precision High-Speed Difet(R) Operational Amplifiers
OPA2228: High Precision, Low Noise Operational Amplifiers
OPA827: Low-Noise, High-Precision, JFET-Input Operational Amplifier
OPA211: 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package
OPA2134: SoundPlus(TM) High Performance Audio Operational Amplifiers

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

View All Features in Datasheet

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.

View All Description in Datasheet

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	2.60 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Contact TI Distributor or Sales Office
OPA228UA	ACTIVE	1.20 \| 1ku	SOIC (D) \| 8	View	75 \| 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	1.20 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Contact TI Distributor or Sales Office
OPA228UG4	ACTIVE	2.60 \| 1ku	SOIC (D) \| 8	View	75 \| 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

Reported Distributor Inventory as of 11:51 AM GMT, 26 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 14 WeeksOPA228P
Americas	Arrow	65
	Newark	114
	Rochester Electronics	>1k
Asia	Farnell Asia	69
Asia	WPI	59
Europe	Compel	43
Europe	Farnell	59
Worldwide	DigiKey	62
Worldwide	Mouser Electronics	119
TI Lead Time*: 14 WeeksOPA228PA
Americas	Newark	89
Americas	Rochester Electronics	>1k
Asia	Farnell Asia	89
Asia	WPI	891
Europe	Spoerle	300
Worldwide	DigiKey	375
TI Lead Time*: 14 WeeksOPA228PAG4
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksOPA228PG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA228U
Americas	Rochester Electronics	113
Asia	Farnell Asia	130
Europe	Farnell	120
Worldwide	DigiKey	64
TI Lead Time*: 20 WeeksOPA228UA
Americas	Arrow	359
	Newark	245
	Rochester Electronics	5
Asia	WPI	81
Europe	Arrow Southern Europe	300
Worldwide	DigiKey	>1k
Worldwide	Mouser Electronics	44
TI Lead Time*: 20 WeeksOPA228UA/2K5
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA228UA/2K5E4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA228UAG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksOPA228UG4
Europe	EBV Elektronik	63
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
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

Most useful technical documents for OPA228

Datasheet

High Precision, Low Noise Operational Amplifiers (Rev. A) (PDF, 791 KB)
07 Jan 2005

Application Notes

Thermal and Electrical Properties of Selected Packaging Materials (HTM, 8 KB) 16120 views
04 Oct 2000 Read Abstract
Shelf-Life Evaluation of Lead-Free Component Finishes (HTM, 8 KB) 27294 views
24 May 2004 Read Abstract
Tuning in Amplifiers (HTM, 8 KB) 9095 views
02 Oct 2000 Read Abstract
Single-Supply Operation of Operational Amplifiers (HTM, 8 KB) 10821 views
02 Oct 2000 Read Abstract
Op Amp Performance Analysis (HTM, 8 KB) 7807 views
02 Oct 2000 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22645 views
02 Oct 2000 Read Abstract

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(TM) Output Buffer Amplifier Selection Tool	MDACBUFFERPRO	Texas Instruments	Application Software
Active Filter Design Application	FILTERPRO	Texas Instruments	Application Software

Simulation Models

PSpice Model
- OPAy228 PSpice Model (ZIP, 3 KB) 782 views
  14 Jun 2002
TINA-TI Reference Design
- OPA228 TINA-TI Reference Design (Rev. A) (TSC, 46 KB) 209 views
  24 Jan 2009
TINA-TI Spice Model
- OPA228 TINA-TI Spice Model (TSM, 3 KB) 38 views
  24 Jan 2009

Part #	Name	Product Family	Comments
OPA227	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Same as OPA228 but with GBW of 8MHz
OPA177	Precision Operational Amplifier	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Similar to OPA228 with 0.025mV VIO, 2mA Iq, and 0.6MHz GBW
OPA637	Precision High-Speed Difet(R) Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Similar to OPA228 with 7.5 mA Iq, 0.1mV VIO and 80MHz GBW
Customers Who Evaluated This Product Also Evaluated...
OPA227	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA627	Precision High-Speed Difet(R) Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA2228	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA637	Precision High-Speed Difet(R) Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA2227	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA277	High Precision Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA2132	High Speed FET-Input Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA4228	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA2277	High Precision Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA37	Ultra-Low Noise Precision Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA827	Low-Noise, High-Precision, JFET-Input Operational Amplifier	PRECISION AMPLIFIER-LOW NOISE	TI customers also evaluated this product.
OPA211	1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package	PRECISION AMPLIFIER-LOW NOISE	TI customers also evaluated this product.
OPA2134	SoundPlus(TM) High Performance Audio Operational Amplifiers	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
OPA134	SoundPlus(TM) High Performance Audio Operational Amplifiers	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
OPA2604	Dual FET-Input, Low Distortion Operational Amplifier	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
OPA604	FET-Input, Audio Operational Amplifier	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
INA217	Low Noise, Low-Distortion Instrumentation Amplifier Replacement for SSM2017	AUDIO AMPLIFIERS-MICROPHONE PREAMPLIFIERS	TI customers also evaluated this product.
OPA602	High-Speed Precision Difet(R) Operational Amplifier	PRECISION AMPLIFIER-WIDE BANDWIDTH	TI customers also evaluated this product.
MPY634	Wide Bandwidth Precision Analog Multiplier	SPECIAL FUNCTION AMPLIFIER-MULTIPLIER	TI customers also evaluated this product.
UAF42	Universal Active Filter	SENSORS, SENSOR CONDITIONING, 4-20MA TRANSMITTER-ACTIVE FILTER	TI customers also evaluated this product.

Pro Audio Mixer

All End-Equipment

Support and Community

Customer Tags

No Tags are Available for this Part Number

OPA228 Status: ACTIVE

High Precision, Low Noise Operational Amplifiers

See Also

Most Popular Links

Datasheet

Customers Who Evaluated This Product Also Evaluated