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OPA4277UA

Quad precision op amp, 10uV Vos, 0.1uV/C drift, 140dB CMRR, SOIC-14

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Manufacturer Part：

OPA4277UA

Package：

SOIC-14 (8.65 x 6.00 x 1.58 mm)

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Description

Product Overview

The OPA4277UA from Texas Instruments is a quad-channel ultra-low offset precision operational amplifier. With 10 uV max offset voltage, 0.1 uV/C drift, 140 dB CMRR, and 134 dB open-loop gain, it replaces industry-standard OP-07/OP-77/OP-177 with improved performance. Operating from ±2V to ±18V supplies at 800 uA per channel, it comes in a 14-pin SOIC package.

Key Specifications

Type Quad Precision Op Amp
Channels 4
Vos (max) 10 uV (A grade)
Offset Drift 0.1 uV/C (typ)
Supply Voltage ±2V to ±18V
Iq per Channel 800 uA (typ)
GBW 1 MHz
Slew Rate 0.8 V/us
CMRR 140 dB (typ)
Open-Loop Gain 134 dB (typ)
Package SOIC-14
Operating Temp -40 to 85 C

Features

  • Ultra-low offset voltage: 10 uV max (A grade)
  • Ultra-low drift: ±0.1 uV/C typical
  • 140 dB common-mode rejection ratio
  • 134 dB open-loop gain
  • 1 nA max input bias current
  • Replaces OP-07, OP-77, OP-177 with improved specs
  • Wide supply range: ±2V to ±18V
  • 800 uA per channel quiescent current

Applications

  • Precision instrumentation amplifiers
  • Medical monitoring and diagnostic equipment
  • Industrial process control transmitters
  • Data acquisition systems
  • Precision filters and integrators

The OPA4277UA from Texas Instruments is a quad-channel precision operational amplifier that replaces industry-standard OP-07, OP-77, and OP-177 devices with significantly improved performance. It features ultra-low 10 uV max input offset voltage, 0.1 uV/C typical offset drift, 140 dB CMRR, and 134 dB open-loop gain. The device operates from ±2V to ±18V supplies with only 800 uA quiescent current per channel, offering twice the bandwidth and slew rate of OP-07 at half the quiescent current. The 1 nA maximum input bias current and 8 nV/sqrtHz noise density make it ideal for precision low-frequency applications.

The OPA4277UA uses a bipolar-input differential pair with e-trim technology, which trims the input offset voltage during final test using polyfuse or laser trimming. The four independent amplifiers share only the supply pins, providing complete channel-to-channel isolation. The high 134 dB open-loop gain is achieved through a two-stage topology with active load. The 140 dB CMRR results from tightly matched input transistor pairs. Each channel’s 800 uA quiescent current powers the input pair, gain stages, and output driver. The output stage uses a Class AB topology capable of driving 600 Ohm loads with low crossover distortion.

Pin Name Type Function
1 1OUT Output Channel 1 output
2 1IN- Input Channel 1 inverting input
3 1IN+ Input Channel 1 non-inverting input
4 V+ Power Positive supply
5 2IN+ Input Channel 2 non-inverting input
6 2IN- Input Channel 2 inverting input
7 2OUT Output Channel 2 output
8 3OUT Output Channel 3 output
9 3IN- Input Channel 3 inverting input
10 3IN+ Input Channel 3 non-inverting input
11 V- Power Negative supply
12 4IN+ Input Channel 4 non-inverting input
13 4IN- Input Channel 4 inverting input
14 4OUT Output Channel 4 output
  • Precision instrumentation: Multi-channel thermocouple and bridge signal conditioning
  • Medical: ECG/EEG front-end amplifiers requiring low offset and drift
  • Industrial: 4-20mA transmitters with precision voltage references
  • Data acquisition: Multi-channel differential input amplifiers
  • Precision filters: Active filters requiring high DC accuracy
Manufacturer Part Number Package Notes
TI OPA4277U SOIC-14 Same device, tube packaging
ADI AD704ARZ-14 SOIC-14 Quad, 100uV Vos, low Ib
TI OPA404UA SOIC-14 Quad, FET input, 1pA Ib
Microchip MCP6V94-E/SL SOIC-14 Quad, zero-drift, 6V
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Quality Assurance

Quality is the core foundation of our long-term global cooperation. With over 20 years of experience in the electronic component industry, Materialparts has built a strict and standardized quality management system covering component sourcing, incoming inspection, full-batch testing, packaging and delivery. We are committed to delivering 100% genuine, high-reliability electronic components for industrial control, automotive electronics, consumer electronics and medical device industries, and fully safeguarding your production and R&D projects.

1. Authorized & Genuine Sourcing Promise

All of our electronic components are procured from official authorized distributors and original manufacturers. We strictly reject counterfeits, refurbished parts, disassembled components and gray-market goods. Every product is guaranteed to be brand-new original parts and fully consistent with the original technical parameters. For branded products such as NXP IC series, we maintain complete supply channel documents to realize full product traceability.

2. Strict Full-batch Quality Inspection

We implement 100% full-batch quality control for all goods before shipment. Our professional QC team conducts multi-dimensional tests including appearance inspection, electrical parameter testing, performance verification and packaging check. Each batch of components is attached with complete inspection reports and batch records. We stick to zero-tolerance standards for defective products to ensure every piece of component meets industrial application requirements.

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Our products comply with a variety of international industry quality standards to adapt to high-standard application scenarios:
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For static-sensitive, moisture-sensitive and precision components such as ICs, PCBs, sensors and connectors, we carry out reliability screening in advance. Combined with standardized ESD anti-static packaging and vacuum moisture-proof packaging, we avoid component damage caused by static electricity, dampness or collision during storage and transportation, and retain the original performance of products.

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Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China

 

Shipping & Payment

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5. Local Pickup in Shenzhen

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  • Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
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Contact Information

Email: info@materialparts.com

Tel / WhatsApp: +86 13760382860

Service & Packaging

Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.

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2. Genuine Product Guarantee & Full-process Quality Inspection

All products are sourced from official authorized channels and are 100% original genuine parts. Every batch of goods undergoes strict full-process quality inspection before delivery, with complete batch records and traceability documents provided. Our products comply with AEC-Q standards for automotive electronics and high-reliability specifications for medical devices. We eliminate counterfeits, refurbished parts and defective products from the source to secure your project production.

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We provide value-added services including personalized packaging, custom labeling and re-reeling according to customer requirements, fully matching your production and warehouse management standards.

Contact Information

For service consultation or packaging customization, please feel free to contact us:
Email: info@materialparts.com
Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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