Linear LT1028CN8 Ultra Low Noise Precision High Speed Op Amp PDIP-8

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

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

• Voltage noise:
• 1.1nV/root-Hz max. at 1kHz
• 0.85nV/root-Hz typ. at 1kHz
• 1.0nV/root-Hz typ. at 10Hz
• 35nV P-P typ., 0.1Hz to 10Hz
• Gain-bandwidth product: 50MHz min.
• Slew rate 11V/µs min.
• Offset voltage: 80µV max.
• Drift with temperature: 0.8µV/°C max.
• Voltage gain: 7 million min.
• Voltage and current noise 100% tested
• Operating temp.: 0 to 70°C