Product Summary
The OPA128-LM is an ultra-low bias current monolithic operational amplifier. Using advanced geometry dielectrically-isolated FET (Difet inputs, this monolithic amplifier achieves a performance level exceeding even the best hybrid electrometer amplifiers. Laser-trimmed thin-film resistors give outstanding voltage offset and drift performance. A noise-free cascode and low-noise processing give the OPA128-LM excellent low-level signal handling capabilities. Flicker noise is very low. The OPA128-LM is an improved pin-for-pin replacement for the AD515.
Parametrics
OPA128-LM absolute maximum ratings: (1)Supply: ±18VDC; (2)Internal Power Dissipation: 500mW; (3)Differential Input Voltage: ±36VDC; (4)Input Voltage Range: ±18VDC; (5)Storage Temperature Range: –65℃ to +150℃; (6)Operating Temperature Range: –55℃ to +125℃; (7)Lead Temperature (soldering, 10s): +300℃; (8)Output Short Circuit Duration: Continuous; (9)Junction Temperature: +175℃.
Features
OPA128-LM features: (1)ULTRA-LOW BIAS CURRENT: 75fA max; (2)LOW OFFSET: 0.5mV max; (3)LOW DRIFT: 5μV/℃ max; (4)HIGH OPEN-LOOP GAIN: 110dB min; (5)High common-mode rejection: 90dB min; (6)Improved replacement for AD515 AND AD549.
Diagrams
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