LT1028 - Ultra Low Noise Precision High Speed Op Amps

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

Typical Application

LT1028
LT1028
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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/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.

 

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Packaging

DIP-8,SO-8,SOW-16

LT1028
LT1028
LT1028
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Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price (1-99) Price (1k)* RoHS Data
LT1028ACN8 PDIP 8 C $8.75 $7.20 View
LT1028ACN8#PBF PDIP 8 C $8.75 $7.20 View
LT1028CN8 PDIP 8 C $5.75 $4.75 View
LT1028CN8#PBF PDIP 8 C $5.75 $4.75 View
LT1028CS8 SO 8 C $5.75 $4.75 View
LT1028CS8#PBF SO 8 C $5.75 $4.75 View
LT1028CS8#TR SO 8 C   $4.81 View
LT1028CS8#TRPBF SO 8 C   $4.81 View
LT1028CSW SO 16 C $6.58 $5.20 View
LT1028CSW#PBF SO 16 C $6.58 $5.20 View
LT1028CSW#TR SO 16 C   $5.26 View
LT1028CSW#TRPBF SO 16 C   $5.26 View
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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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
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Simulate

Linear Technology offers several options for simulating our high performance operational amplifiers.

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