LT1128ACN8 Datasheet PDF - Linear Technology

●DESCRIPTION

●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.

●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

●■ Slew Rate

●   LT1028: 11V/µs Min

●   LT1128: 5V/µs Min

●■ Offset Voltage: 40µV Max

●■ Drift with Temperature: 0.8µV/°C Max

●■ Voltage Gain: 7 Million Min

●■ Available in 8-Pin SO Package

●APPLICATIONS

●■ Low Noise Frequency Synthesizers

●■ High Quality Audio

●■ Infrared Detectors

●■ Accelerometer and Gyro Amplifiers

●■ 350Ω Bridge Signal Conditioning

●■ Magnetic Search Coil Amplifiers

●■ Hydrophone Amplfiers