OPA27BZ

更新时间： 2024-11-23 13:12:03

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BB		运算放大器
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18页	368K
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OPA27BZ 数据手册

OPA27

OPA37

OPA27

SBOS135B – JANUARY 1984 – REVISED FEBRUARY 2005

Ultra-Low Noise, Precision

OPERATIONAL AMPLIFIERS

DESCRIPTION

FEATURES

The OPA27 and OPA37 are ultra-low noise, high-precision

monolithic operational amplifiers.

● LOW NOISE: 4.5nV/√Hz max at 1kHz

● LOW OFFSET: 100µV max

Laser-trimmed thin-film resistors provide excellent long-term

voltage offset stability and allow superior voltage offset

compared to common zener-zap techniques.

● LOW DRIFT: 0.4µV/°C

● HIGH OPEN-LOOP GAIN: 117dB min

● HIGH COMMON-MODE REJECTION: 100dB min

● HIGH POWER-SUPPLY REJECTION: 94dB min

A unique bias current cancellation circuit allows bias and

offset current specifications to be met over the full –55°C to

+125°C temperature range.

● FITS OP-07, OP-05, AD510, AND AD517

SOCKETS

The OPA27 is internally compensated for unity-gain stability.

The decompensated OPA37 requires a closed-loop gain ≥ 5.

APPLICATIONS

● PRECISION INSTRUMENTATION

The Texas Instrument OPA27 and OPA37 are improved

replacements for the industry-standard OP-27 and OP-37.

● DATA ACQUISITION

● TEST EQUIPMENT

● PROFESSIONAL AUDIO EQUIPMENT

● TRANSDUCER AMPLIFIERS

● RADIATION HARD EQUIPMENT

+V_CC

Trim

Output

–In

+In

–V_CC

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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