Products
LT1028
PRODUCTIONUltra Low Noise Precision High Speed Op Amps
- Part Models
- 6
- 1ku List Price
- Starting From $7.31
Viewing:
Overview
- Voltage Noise
- 1.1nV/√Hz Max. at 1kHz
- 0.85nV/√Hz Typ. at 1kHz
- 1.0nV/√Hz 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
The LT1028 (gain of –1 stable)/LT1128(gain of +1 stable) achieve a new standard of excellence in noise performance with 0.85nV/√Hz 1kHz noise, 1.0nV/√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 50Ω 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.
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
Documentation
Data Sheet 1
User Guide 1
Application Note 6
Design Note 7
Technical Articles 5
Video 1
Product Selector Card 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LT1028ACN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1028CN8#PBF | 8-Lead PDIP (Narrow 0.3 Inch) | ||
| LT1028CS8#PBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1028CS8#TRPBF | 8-Lead SOIC (Narrow 0.15 Inch) | ||
| LT1028CSW#PBF | 16-Lead SOIC (Wide 0.3 Inch) | ||
| LT1028CSW#TRPBF | 16-Lead SOIC (Wide 0.3 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 8, 2024 - 24_0234 Migrating Bottom Trace Code Marking to Top Side Laser Marking for PDIP Package |
||
| LT1028ACN8#PBF | PRODUCTION | |
| LT1028CN8#PBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0241 Epoxy Change from Henkel 8290 to 8290A for PDIP Package |
||
| LT1028ACN8#PBF | PRODUCTION | |
| LT1028CN8#PBF | PRODUCTION | |
|
Aug 6, 2022 - 22_0172 Laser Top Mark Conversion for PDIP Packages Assembled in ADPG [PNG] |
||
| LT1028ACN8#PBF | PRODUCTION | |
| LT1028CN8#PBF | PRODUCTION | |
|
Oct 8, 2024 - 24_0236 Migrating Bottom Trace Code Marking to Top Side Laser Marking for SOIC_N Package |
||
| LT1028CS8#PBF | PRODUCTION | |
| LT1028CS8#TRPBF | PRODUCTION | |
|
Oct 12, 2022 - 22_0254 Epoxy Change from Henkel 8290 to 8290A for 8-Lead SOIC Package (PCN part 1 of 2) |
||
| LT1028CS8#PBF | PRODUCTION | |
| LT1028CS8#TRPBF | PRODUCTION | |
|
Jun 11, 2021 - 21_0060 Laser Top Mark for 8SOICN Assembled in ADPG, UTL and CRM |
||
| LT1028CS8#PBF | PRODUCTION | |
| LT1028CS8#TRPBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LT1028CSW#PBF | PRODUCTION | |
| LT1028CSW#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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Tools & Simulations
LTspice 2
- LT1028/LT1055/LT1634 Demo Circuit - Super Low Distortion Variable Sine Wave Oscillator
- LT1797 - Operational Amplifiers (Op Amps), LT1028 - Operational Amplifiers (Op Amps)
Models for the following parts are available in LTspice:
- LT1028
- LT1028A
- LT1028CS
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.