OP279 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

OP279
Manufacturer

ADI
ChipWorker Part#

CW292823248
RoHS

Lead free / RoHS Compliant
Description

Rail-to-Rail High Output Current Operational Amplifiers
Documentation

Datasheet

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OP279 Specifications

Attribute	Attribute Value

Part Number	OP279
Manufacturer	ADI
ChipWorker Part#	CW292823248
Documentation	Datasheet
Case/Package	SOIC
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Product Lifecycle Status	Unknown
RoHS	RoHS Compliant
Lead-Free Status	Lead Free

Product Description

Product Details
The OP279 is a dual rail-to-rail, high output current, single supply amplifier. It is designed for low voltage applications that require either current or capacitive load drive capability. The OP279 can sink and source currents of ±80 mA (typ) and is stable with capacitive loads to 10 nF.
Applications with the benefit from the OP279"s high output current include driving headphones, displays, transformers, and power transistors. The powerful output is combined with a unique input stage that maintains very low distortion with wide common-mode range, even in single supply designs.
The OP279 can be used as a buffer to provide much greater drive capability than can usually be provided by CMOS outputs. CMOS ASICs and DACs often have outputs that can swing to both the positive supply and ground, but are incapable of driving greater than a few milliamps.
Bandwith is typically 5 MHz and the slew rate is 3 V/µs, making these amplifiers well suited for single supply applications that require audio bandwidths when used in high gain configurations. Operation is guaranteed from voltages as low as 4.5 V, up to 12 V.
When using the OP279 in +5 volt systems, very good audio performance can be attained. THD is below 0.01% with a 600 Ohm load, and noise is a respectable 21 nV/Hz. Supply current is less than 3.5 mA per amplifier.
The OP279 is available in 8-pin plastic DIP and SO-8 surface mount packages. They are specified over the industrial (-40°C to +80°C) temperature range.
### Features and Benefits
Rail-to-Rail Inputs and Outputs
High Output Current: ±60 mA
Single Supply: 5 V to 12 V
Wide Bandwidth: 5 MHz
High Slew Rate: 3 V/±s
Low Distortion: 0.01%
Unity-Gain Stable
No Phase Reversal
Short-Circuit Protected
Drives Capacitive Loads: 10 nF

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