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Ultra-Low Noise Precision Operational Amplifiers
DESCRIPTION
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¡ÆC to +85¡ÆC temperature range.
The OPA27 is internally compensated for unity-gain stability. The decompensated OPA37 requires a closed-loop gain ¡Ã 5. The Texas Instruments¡¯ OPA27 and OPA37 are improved replacements for the industry-standard OP-27 and OP-37.
APPLICATIONS
* PRECISION INSTRUMENTATION
* DATA ACQUISITION
* TEST EQUIPMENT
* PROFESSIONAL AUDIO EQUIPMENT
* TRANSDUCER AMPLIFIERS
* RADIATION HARD EQUIPMENT
FEATURES
* LOW NOISE: 4.5nV/¡îHz max at 1kHz
* LOW OFFSET: 100¥ìV max
* LOW DRIFT: 0.4¥ìV/¡ÆC
* 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
(Burr-Brown products from Texas Instruments)