OPA27GU/2K5E4

超低噪声，精密运算放大器 Ultra-Low Noise, Precision OPERATIONAL AMPLIFIERS

DESCRIPON

The OPA27 and OPA37 are ultra-low noise, high-precision monolithic operational amplifiers.

Laser-trimmed thin-film resistors provide excellent long-term voltage offset stability and allow superior voltage offset compared to common zener-zap techniques.

A unique bias current cancellation circuit allows bias and offset current specifications to be met over the full –40°C to +85°C temperature range.

The OPA27 is internally compensated for unity-gain stability.

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

The Texas Instruments’ OPA27 and OPA37 are improved replacements for the industry-standard OP-27 and OP-37.

FEATURES

● LOW NOISE: 4.5nV/√Hz max at 1kHz

● LOW OFFSET: 100µV max

● LOW DRIFT: 0.4µV/°C

● HIGH OPEN-LOOP GAIN: 117dB min

● HIGH COMMON-MODE REJECTION: 100dB min

● HIGH POWER-SUPPLY REJECTION: 94dB min

● FITS OP-07, OP-05, AD510, AND AD517 SOCKETS

APPLICATIONS

● PRECISION INSTRUMENTATION

● DATA ACQUISITION

● TEST EQUIPMENT

● PROFESSIONAL AUDIO EQUIPMENT

● TRANSDUCER AMPLIFIERS

● RADIATION HARD EQUIPMENT