OPA128

更新时间： 2024-09-22 22:27:59

品牌	Logo	应用领域
BB		运算放大器
页数	文件大小	规格书
11页	130K
描述
Difet Electrometer-Grade OPERATIONAL AMPLIFIER

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OPA128 数据手册

OPA128

Difet^®Electrometer-Grade

OPERATIONAL AMPLIFIER

FEATURES

APPLICATIONS

● ULTRA-LOW BIAS CURRENT: 75fA max

● ELECTROMETER

● MASS SPECTROMETER

● CHROMATOGRAPH

● ION GAUGE

● LOW OFFSET: 500µV max

● LOW DRIFT: 5µV/°C max

● HIGH OPEN-LOOP GAIN: 110dB min

● HIGH COMMON-MODE REJECTION:

● PHOTODETECTOR

90dB min

● RADIATION-HARD EQUIPMENT

● IMPROVED REPLACEMENT FOR AD515

AND AD549

DESCRIPTION

Case (Guard)

The OPA128 is an ultra-low bias current monolithic

operational amplifier. Using advanced geometry

dielectrically-isolated FET (Difet^®) inputs, this mono-

lithic amplifier achieves a performance level exceed-

ing even the best hybrid electrometer amplifiers.

–In

Laser-trimmed thin-film resistors give outstanding volt-

age offset and drift performance.

A noise-free cascode and low-noise processing give

the OPA128 excellent low-level signal handling capa-

bilities. Flicker noise is very low.

Noise-Free

Cascode

+In

Output

The OPA128 is an improved pin-for-pin replacement

for the AD515.

28kΩ

2kΩ

28kΩ

2kΩ

Trim

1kΩ

Difet^®Burr-Brown Corp.

Trim

–V

OPA128 Simplified Circuit

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

•

Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706

Telex: 066-6491 FAX: (520) 889-1510

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

Internet: http://www.burr-brown.com/

•

FAXLine: (800) 548-6133 (US/Canada Only) Cable: BBRCORP

•

Immediate Product Info: (800) 548-6132

PDS-653E

Printed in U.S.A. May, 1995

SBOS148

12 3 4 5 6 7...11

中文翻译

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