OP275

更新时间： 2024-11-03 22:44:43

品牌	Logo	应用领域
亚德诺 - ADI		运算放大器
页数	文件大小	规格书
12页	192K
描述
Dual Bipolar/JFET, Audio Operational Amplifier

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OP275 数据手册

Dual Bipolar/JFET, Audio

Operational Amplifier

OP275*

PIN CONNECTIONS

FEATURES

Excellent Sonic Characteristics

Low Noise: 6 nV/√Hz

Low Distortion: 0.0006%

High Slew Rate: 22 V/␮s

Wide Bandwidth: 9 MHz

Low Supply Current: 5 mA

Low Offset Voltage: 1 mV

Low Offset Current: 2 nA

Unity Gain Stable

8-Lead Narrow-Body SO

8-Lead Epoxy DIP

(P Suffix)

(S Suffix)

OUT A

–IN A

+IN A

V–

V+

OP275

OUT A

–IN A

+IN A

V–

V+

OUT B

–IN B

+IN B

OP275

OUT B

–IN B

+IN B

SOIC-8 Package

APPLICATIONS

High Performance Audio

Active Filters

Fast Amplifiers

Integrators

GENERAL DESCRIPTION

Improved dc performance is also provided with bias and offset

currents greatly reduced over purely bipolar designs. Input off-

set voltage is guaranteed at 1 mV and is typically less than

200 µV. This allows the OP275 to be used in many dc coupled

or summing applications without the need for special selections

or the added noise of additional offset adjustment circuitry.

The OP275 is the first amplifier to feature the Butler Amplifier

front-end. This new front-end design combines both bipolar

and JFET transistors to attain amplifiers with the accuracy and

low noise performance of bipolar transistors, and the speed and

sound quality of JFETs. Total Harmonic Distortion plus Noise

equals that of previous audio amplifiers, but at much lower sup-

ply currents.

The output is capable of driving 600 Ω loads to 10 V rms while

maintaining low distortion. THD + Noise at 3 V rms is a low

0.0006%.

A very low l/f corner of below 6 Hz maintains a flat noise density

response. Whether noise is measured at either 30 Hz or 1 kHz,

it is only 6 nV/√Hz. The JFET portion of the input stage gives

the OP275 its high slew rates to keep distortion low, even when

large output swings are required, and the 22 V/µs slew rate of

the OP275 is the fastest of any standard audio amplifier. Best of

all, this low noise and high speed are accomplished using less

than 5 mA of supply current, lower than any standard audio

amplifier.

The OP275 is specified over the extended industrial (–40°C to

+85°C) temperature range. OP275s are available in both plastic

DIP and SOIC-8 packages. SOIC-8 packages are available in

2500 piece reels. Many audio amplifiers are not offered in

SOIC-8 surface mount packages for a variety of reasons; how-

ever, the OP275 was designed so that it would offer full perfor-

mance in surface mount packaging.

*Protected by U.S. Patent No. 5,101,126.

REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

use, nor for any infringements of patents or other rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.

Tel: 617/329-4700

Fax: 617/326-8703

12 3 4 5 6 7...12

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与OP275相关器件

型号	品牌	获取价格	描述	数据表
OP275_04	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275AZ/883	ETC	获取价格	Voltage-Feedback Operational Amplifier
OP275GBC	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GP	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GPZ	ADI	获取价格	暂无描述
OP275GS	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GSR	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GS-REEL	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GS-REEL7	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier
OP275GSZ	ADI	获取价格	Dual Bipolar/JFET, Audio Operational Amplifier

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