OPA4228UAIn StockTexas Instruments
OPA4228UA is Texas Instruments' quad precision op-amp with 3 nV/√Hz input noise, 138 dB CMRR, and ±18V supply range in a SOIC-14 package. From $7.84/unit, 1 pc MOQ, in stock with global shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC
- Pin Count
- 14
- Lifecycle
- ACTIVE
- Datasheet
- OPA4228UA Datasheet PDF
- Category
- op-amps
- Price
- From $6.0000(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low voltage noise: 3 nV/√Hz at 1 kHz for precision signal chains
- Wide supply range: ±2.25V to ±18V covering single and dual supply designs
- High CMRR: 138 dB typical for superior common-mode rejection
- Low bias current: 10 nA typical, ideal for high-impedance sensor interfaces
- Quad channel in compact SOIC-14 package, saving board space
Applications
OPA4228UA is well suited for precision instrumentation amplifiers, medical sensor front-ends, and industrial data acquisition systems. Its four matched channels and ultra-low noise make it ideal for audio measurement equipment, strain-gauge bridges, and thermocouple signal conditioning.
Specifications
| Input Voltage Noise | 3nV/√Hz |
| Supply Voltage | ±2.25 to ±18V |
| CMRR | 138dB |
| Input Bias Current | 10nA |
| Gain Bandwidth Product | 33MHz |
| Operating Temperature | -40 to 85°C |
| Number of Channels | 4 |
| Supply Current per Channel | 3.5mA |
| Package | SOIC |
Compliance & Regulatory
| RoHS Status | Compliant |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for OPA4228UA:
Same quad precision op-amp family, slightly higher noise (8 nV/√Hz) but lower cost; pin-compatible drop-in alternative
Frequently Asked Questions
How many op-amp channels does the OPA4228UA contain, and what package is used?
The OPA4228UA contains four independent op-amp channels in a SOIC-14 package. All four channels share identical precision specifications, making it easy to design matched differential or bridge circuits without component-to-component variation.
What supply voltage range does the OPA4228UA support?
The OPA4228UA operates from ±2.25V to ±18V dual supply (or 4.5V to 36V single supply). This wide range lets designers use it from battery-powered portable instruments up to industrial ±15V bench equipment without circuit redesign.
Is the OPA4228UA suitable for precision sensor signal conditioning?
Yes. With only 3 nV/√Hz input voltage noise and 138 dB CMRR, the OPA4228UA excels at amplifying small differential signals from strain gauges, RTDs, thermocouples, and bridge sensors in noisy industrial or medical environments.
What is the minimum order quantity and lead time for OPA4228UA?
FindMyChip stocks OPA4228UA with a minimum order quantity of 1 piece. Price breaks are available at qty 1 ($7.84), 2 ($7.00), 100 ($6.92), and 1000 ($6.00). Orders typically ship within a few business days globally.
What are common alternatives to the OPA4228UA?
Pin-compatible and functionally similar alternatives include the OPA4227 (lower cost, slightly higher noise at 8 nV/√Hz), the AD8664 from Analog Devices (rail-to-rail output, ±5V to ±15V), and the LT6014 from Analog Devices (1.1 nV/√Hz, higher performance). Select based on your noise budget and supply voltage.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $7.8400 | $7.84 |
| 2+ | $7.0000 | $14.00 |
| 100+ | $6.9200 | $692.00 |
| 1000+ | $6.0000 | $6000.00 |
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