LT1028CS8 Precision High Speed Op Amps linear and digital integrated circuits Ultralow Noise

LT1028CS8 Precision High Speed Op Amps linear and digital integrated circuits Ultralow Noise

APPLICATIO S

■ Low Noise Frequency Synthesizers

■ High Quality Audio

■ Infrared Detectors

■ Accelerometer and Gyro Amplifiers

■ 350Ω Bridge Signal Conditioning

■ Magnetic Search Coil Amplifiers

■ Hydrophone Amplfiers

FEATURES

■Voltage Noise

1.1nV/√Hz Max at 1kHz

0.85nV/√Hz Typ at 1kHz

1.0nV/√Hz Typ at 10Hz

35nVP-P Typ, 0.1Hz to 10Hz

■ Voltage and Current Noise 100% Tested

■ Gain-Bandwidth Product

LT1028: 50MHz Min

LT1128: 13MHz Min

DESCRIPTIO U

The LT® 1028(gain of –1 stable)/LT1128(gain of +1 stable) achieve a new standard of excellence in noise performance with 0.85nV/√Hz 1kHz noise, 1.0nV/√Hz 10Hz noise. This ultralow noise is combined with excellent high speed specifications (gain-bandwidth product is 75MHz for LT1028, 20MHz for LT1128), distortion-free output, and true precision parameters (0.1µV/°C drift, 10µV offset voltage, 30 million voltage gain). Although the LT1028/ LT1128 input stage operates at nearly 1mA of collector current to achieve low voltage noise, input bias current is only 25nA.

The LT1028/LT1128’s voltage noise is less than the noise of a 50Ω resistor. Therefore, even in very low source impedance transducer or audio amplifier applications, the LT1028/LT1128’s contribution to total system noise will be negligible

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