OPA2111

更新时间： 2024-11-18 22:44:43

品牌	Logo	应用领域
BB		运算放大器
页数	文件大小	规格书
13页	233K
描述
Dual Low Noise Precision Difet OPERATIONAL AMPLIFIER

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OPA2111 数据手册

OPA2111

Dual Low Noise Precision

Difet ^®OPERATIONAL AMPLIFIER

FEATURES

APPLICATIONS

● LOW NOISE: 100% Tested, 8nV/√Hz max at

● PRECISION INSTRUMENTATION

10kHz

● DATA ACQUISITION

● LOW BIAS CURRENT: 4pA max

● LOW OFFSET: 500µV max

● LOW DRIFT: 2.8µV/°C

● TEST EQUIPMENT

● PROFESSIONAL AUDIO EQUIPMENT

● MEDICAL EQUIPMENT

● HIGH OPEN-LOOP GAIN: 114dB min

● DETECTOR ARRAYS

● HIGH COMMON-MODE REJECTION:

96dB min

DESCRIPTION

The OPA2111 is a high precision monolithic

dielectrically isolated FET (Difet) operational ampli-

fier. Outstanding performance characteristics allow its

use in the most critical instrumentation applications.

+V_CC

Noise, bias current, voltage offset, drift, open-loop

gain, common-mode rejection, and power supply re-

jection are superior to BIFET^®amplifiers.

–In

+In

Very low bias current is obtained by dielectric isola-

tion with on-chip guarding.

Noise-Free

Cascode*

Laser trimming of thin-film resistors gives very low

offset and drift. Extremely low noise is achieved with

patented circuit design techniques. A cascode design

allows high precision input specifications and reduced

susceptibility to flicker noise.

Output

–V_CC

Standard dual op amp pin configuration allows up-

grading of existing designs to higher performance

levels.

*Patented

OPA2111 Simplified Circuit

(Each Amplifier)

BIFET^®National Semiconductor Corp., Difet^®Burr-Brown Corp.

International Airport Industrial Park

•

Mailing Address: PO Box 11400

Cable: BBRCORP

•

Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd.

•

Tucson, AZ 85706

Tel: (520) 746-1111 Twx: 910-952-1111

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

PDS-540E

Printed in U.S.A. October, 1993

12 3 4 5 6 7...13

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