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LT6018 - 36V, Ultralow Noise, Precision Op Amp

The LT®6018 is a 33V precision operational amplifier with excellent noise performance. With 0.1Hz to 10Hz noise of only 30nVP-P, the LT6018 is an outstanding choice for applications where 1/f noise impacts system performance. The LT6018 has excellent DC performance with a maximum offset voltage of 50μV and a maximum offset voltage drift of 0.5μV/°C. The input offset voltage remains low over the entire common mode input range, providing a minimum CMRR of 124dB. Open loop gain is typically 142dB enabling the part to achieve linearity better than 1ppm. The proprietary circuit topology of the LT6018 provides excellent slew rate and settling time without compromising noise or DC precision.

An enable pin allows the LT6018 to be put in a low power shutdown mode, reducing the typical supply current to only 6.2μA. A reference pin for the enable pin is also provided, which simplifies the interface between external circuitry and the LT6018.

The LT6018 is available in 8-lead SO and 12-lead 4mm × 3mm DFN packages, both of which include an exposed pad to reduce thermal resistance. The LT6018 is specified over the –40°C to 85°C and –40°C to 125°C temperature ranges.

Features Ultralow Voltage Noise 30nVP-P Noise: 0.1Hz to 10Hz 1.2nV/√Hz Typical at 1kHz 30nVP-P Noise: 0.1Hz to 10Hz 1.2nV/√Hz Typical at 1kHz Maximum Offset Voltage: 50μV Maximum Offset Voltage Drift: 0.5μV/°C CMRR: 124dB (Minimum) AVOL: 132dB (Minimum) Slew Rate: 30V/μs Gain-Bandwidth Product: 15MHz Wide Supply Range: 8V to 33V Ultralow THD: –115dB at 1kHz Unity Gain Stable Low Power Shutdown: 6.2µA SOIC-8E and 4mm × 3mm 12-Lead DFN Packages 4.5kV HBM and 2kV CDM Tolerant Typical Application

Applications ADC Driver Applications Low Noise Precision Signal Processing Multiplexed Applications DAC Buffer Precision Data Acquisition Active Filters Professional Audio Packaging