OPA227 Status: ACTIVE

High Precision, Low Noise Operational Amplifiers

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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

OPA277: High Precision Operational Amplifiers
OPA2227: High Precision, Low Noise Operational Amplifiers
OPA627: Precision High-Speed Difet(R) Operational Amplifiers
OPA2134: SoundPlus(TM) High Performance Audio Operational Amplifiers
OPA211: 1.1nV/rtHz Noise, Low Power, Precision Operational Amplifier in Tiny DFN-8 Package
OPA827: Low-Noise, High-Precision, JFET-Input Operational Amplifier

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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
OPA227P	ACTIVE	2.35 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
OPA227PA	ACTIVE	1.10 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE
OPA227PAG4	ACTIVE	1.10 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE	Contact TI Distributor or Sales Office
OPA227PG4	ACTIVE	2.35 \| 1ku	PDIP (P) \| 8	View	50 \| TUBE	Contact TI Distributor or Sales Office
OPA227U	ACTIVE	2.60 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
OPA227U/2K5	ACTIVE	2.35 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA227U/2K5E4	ACTIVE	2.35 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA227UA	ACTIVE	1.20 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE
OPA227UA/2K5	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA227UA/2K5G4	ACTIVE	1.10 \| 1ku	SOIC (D) \| 8	View	2500 \| LARGE T&R	Purchase Samples
OPA227UAG4	ACTIVE	1.20 \| 1ku	SOIC (D) \| 8	View	75 \| TUBE	Contact TI Distributor or Sales Office
OPA227UE4	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 11:49 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 14 WeeksOPA227P
Americas	Arrow	1
Americas	Rochester Electronics	48
Asia	WPI	91
Europe	Arrow Southern Europe	50
	Avnet-SILICA	55
	Spoerle	100
Worldwide	DigiKey	576
Worldwide	Mouser Electronics	67
TI Lead Time*: 20 WeeksOPA227PA
Americas	Arrow	250
Americas	Newark	164
Asia	Farnell Asia	164
Asia	WPI	915
Europe	Spoerle	150
Worldwide	DigiKey	135
TI Lead Time*: 20 WeeksOPA227PAG4
Asia	Farnell Asia	>1k
Europe	Farnell	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 14 WeeksOPA227PG4
Worldwide	DigiKey	Available
Worldwide	Mouser Electronics	146
TI Lead Time*: 20 WeeksOPA227U
Americas	Newark	70
Asia	Farnell Asia	258
Europe	Compel	>1k
	EBV Elektronik	450
	Farnell	208
TI Lead Time*: 20 WeeksOPA227U/2K5
None Reported View Distributors
TI Lead Time*: 20 WeeksOPA227U/2K5E4
None Reported View Distributors
TI Lead Time*: 20 WeeksOPA227UA
Asia	Farnell Asia	176
Asia	WPI	150
Europe	Compel	123
Europe	Farnell	77
TI Lead Time*: 20 WeeksOPA227UA/2K5
None Reported View Distributors
TI Lead Time*: 20 WeeksOPA227UA/2K5G4
None Reported View Distributors
TI Lead Time*: 20 WeeksOPA227UAG4
None Reported View Distributors
TI Lead Time*: 20 WeeksOPA227UE4
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
OPA227P	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA227PA	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA227PAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA227PG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
OPA227U	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227U/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227U/2K5E4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227UA	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227UA/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227UA/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227UAG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
OPA227UE4	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 OPA227

Datasheet

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

Application Notes

AB-174: Getting the Full Potential from your ADC (Rev. A) (HTM, 8 KB) 2565 views
28 Jun 2002 Read Abstract
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
Tuning in Amplifiers (HTM, 8 KB) 9032 views
02 Oct 2000 Read Abstract
Single-Supply Operation of Operational Amplifiers (HTM, 8 KB) 10762 views
02 Oct 2000 Read Abstract
Op Amp Performance Analysis (HTM, 8 KB) 7771 views
02 Oct 2000 Read Abstract
Topology and Noise Using Multiplying DACs (HTM, 8 KB) 1614 views
06 Dec 2006 Read Abstract
High Speed Data Conversion (HTM, 8 KB) 22501 views
02 Oct 2000 Read Abstract
Optoelectronics Circuit Collection (HTM, 8 KB) 4842 views
11 Jun 2001 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
- OPAy227 PSpice Model (Rev. A) (ZIP, 3 KB) 1394 views
  14 Jun 2002
TINA-TI Reference Design
- OPA227 TINA-TI Reference Design (Rev. A) (TSC, 46 KB) 352 views
  24 Jan 2009
TINA-TI Spice Model
- OPA227 TINA-TI Spice Model (TSM, 3 KB) 50 views
  24 Jan 2009

Part #	Name	Product Family	Comments
OPA277	High Precision Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Single version which features offset voltage 10µV, low drift ±0.1µV/°C, open-loop-gain of 134dB and CMRR 140dB
OPA177	Precision Operational Amplifier	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Features offset voltage 25µV, open-loop-gain 130dB and low drift 0.3µV/°C. OPA277 replace the OPA177
OPA627	Precision High-Speed Difet(R) Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Features low noise 4.5nV/sqrt(Hz) at 10kHz and low drift 0.8µV/°C max
OPA2227	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	OPA2227 is dual version
OPA2277	High Precision Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	Dual version which features offset voltage 10µV, low drift ±0.1µV/°C, open-loop-gain 134dB and CMRR 140dB
OPA27	Ultra-Low Noise Precision Operational Amplifiers	PRECISION AMPLIFIER - LOW OFFSET VOLTAGE	OPA227 replace OP-27
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OPA2227	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.
OPA2277	High Precision Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
OPA228	High Precision, Low Noise Operational Amplifiers	PRECISION AMPLIFIER-LOW OFFSET VOLTAGE	TI customers also evaluated this product.
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OPA227 Status: ACTIVE

High Precision, Low Noise Operational Amplifiers

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Datasheet

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