LINEAR TECHNOLOGY -LT1028 LT1128 Data Handbook/Specifications Sheet
Summary
These precision operational amplifiers provide industry-leading high-speed performance combined with ultra-low voltage noise. The LT1028/LT1128 series achieves new standards of excellence, featuring exceptionally low noise density (e.g., 0.85nV/√Hz) and a wide bandwidth up to 75MHz. This comprehensive manual details all electrical parameters, thermal grades, multiple package options, and detailed usage guides. It is essential for engineers designing sensitive instrumentation, including high-quality audio amplifiers, frequency synthesizers, IR detectors, and precise signal conditioning systems where minimal noise contribution is critical.
Page 1 Text Content
LT1028/LT1128
Ultralow Noise Precision High Speed Op Amps
FEATURES DESCRIPTIO Voltage Noise The LT®1028(gain of –1 stable)/LT1128(gain of +1 stable) 1.1n V/√Hz Max at 1k Hz achieve a new standard of excellence in noise performance 0.85n V/√Hz Typ at 1k Hz with 0.85n V/√Hz 1k Hz noise, 1.0n V/√Hz 10Hz noise. This 1.0n V/√Hz Typ at 10Hz ultralow noise is combined with excellent high speed 35n VP-P Typ, 0.1Hz to 10Hz specifications (gain-bandwidth product is 75MHz for
Voltage and Current Noise 100% Tested LT1028, 20MHz for LT1128), distortion-free output, and Gain-Bandwidth Product true precision parameters (0.1µV/°C drift, 10µV offset LT1028: 50MHz Min voltage, 30 million voltage gain). Although the LT1028/ LT1128: 13MHz Min LT1128 input stage operates at nearly 1m A of collector Slew Rate current to achieve low voltage noise, input bias current is LT1028: 11V/µs Min only 25n A.
LT1128: 5V/µs Min
The LT1028/LT1128’s voltage noise is less than the noise
Offset Voltage: 40µV Max
of a 50Ω resistor. Therefore, even in very low source
Drift with Temperature: 0.8µV/°C Max
impedance transducer or audio amplifier applications, the
Voltage Gain: 7 Million Min
LT1028/LT1128’s contribution to total system noise will
Available in 8-Pin SO Package
VO LT AG NO IS DE NS IT (n V/ √H z) be negligible.
, LTC and LT are registered trademarks of Linear Technology Corporation
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
TYPICAL APPLICATIO Voltage Noise vs Frequency
VS = ±15V Flux Gate Amplifier MAXIMUM TA = 25°C
1/f CORNER = 14Hz
DEMODULATOR SYNC
TYPICAL
OUTPUT TO
LT1028
DEMODULATOR 1/f CORNER = 3.5Hz
SQUARE
FLUX GATE
WAVE 1k
TYPICAL
DRIVE
SCHONSTEDT
1k Hz
FREQUENCY (Hz)
1028/1128 TA01 1028/1128 TA02
Page Summary Contents For LINEAR TECHNOLOGY -LT1028 LT1128 Data Handbook/Specifications Sheet
Manual Details
| Brand | Linear |
|---|---|
| Pages | 20 |
| File Size | 450.13 KB |
| Published | June 17, 2026 |
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