●DESCRIPTION
●The OPA111 is a precision monolithic dielectrically isolated FET (
●Difet
●®) operational amplifier. Outstand ing performance characteristics allow its use in the most critical instrumentation applications.
●Noise, bias current, voltage offset, drift, open-loop gain, common-mode rejection, and power supply rejection are superior to BIFET® amplifiers.
●Very low bias current is obtained by dielectric isolation with on-chip guarding.
●Laser trimming of thin-film resistors gives very low offset and drift. Extremely low noise is achieved with patented circuit design techniques. A new cascode design allows high precision input specifications and reduced susceptibility to flicker noise.
●Standard 741 pin configuration allows upgrading of existing designs to higher performance levels.
●FEATURES
●LOW NOISE: 100% Tested, 8nV
●√
●Hz max
●(10kHz)
●LOW BIAS CURRENT: 1pA max
●LOW OFFSET: 250
●µ
●V max
●LOW DRIFT: 1
●µ
●V/
●°
●C max
●HIGH OPEN-LOOP GAIN: 120dB min
●HIGH COMMON-MODE REJECTION:
●100dB min
●APPLICATIONS
●PRECISION INSTRUMENTATION
●DATA ACQUISITION
●TEST EQUIPMENT
●OPTOELECTRONICS
●MEDICAL EQUIPMENT—CAT SCANNER
●RADIATION HARD EQUIPMENT
