Signal Conditioning Operational Amplifiers (Op Amps) Precision Amplifiers
Signal Conditioning Operational Amplifiers (Op Amps) Low Noise Amplifiers

LT5400 - Quad Matched Resistor Network

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 Typical Application
LT1028 Typical Application

Description

The LT1028 (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.

Packaging

For complete and up to date package information and drawings, please refer to our packaging page

DIP-8,SO-8,SOW-16

LT1028 Package Drawing
LT1028 Package Drawing

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.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards

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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Related models available in LTspice IV
LT1028
LT1028A
LT1028CS
LT1028N

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