LT1028 | Op Amp Upgrade

LT1028
LINEAR TECHNOLOGY
Ultra Low Noise Precision High Speed Op Amps

The LT®1028 (gain of –1 stable)/LT1128 (gain of +1 stable) achieve a new standard of excellence in noise performance with 0.85nV/Rt.Hz 1kHz noise, 1.0nV/Rt.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 50 Ohm 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/rt Hz Max. at 1kHz
   0.85nV/rt Hz Typ. at 1kHz
   1.0nV/ rtHz Typ. at 10Hz
* 35nVP-P Typ., 0.1Hz to 10Hz
* 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.
* Voltage and Current Noise 100% Tested
* Available in 8-Pin SO Package

Applications

* Low Noise Frequency Synthesizers
* High Quality Audio
* Infrared Detectors
* Accelerometer and Gyro Amplifiers
* 350 ohms Bridge Signal Conditioning
* Magnetic Search Coil Amplifiers
* Hydrophone Amplifiers

LT1028 Datasheet
Veličina: 449 kb