Key facts
- Brand
- Linear Technology
- Model
- LTC1052
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-05
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Linear Technology AN9-1 Application Note for LTC1052 Chopper-Stabilized Op Amp
The document provides an overview of chopper-stabilization techniques used in the LTC1052 monolithic amplifier to achieve ultralow time and temperature drift. It compares the LTC1052's performance against other conventional amplifiers like FET input and bipolar types, highlighting its superior DC specifications.
A significant portion of the text addresses practical design issues such as thermal EMFs (Seeback effect) generated by dissimilar metal junctions in connectors and solder. The note offers specific layout strategies to minimize these errors, including using Teflon standoffs for high-impedance inputs and guarding techniques on PCB traces.
Linear Technology LTC1052 specifications
| Input Offset Voltage (Typical) | 5 µV |
|---|---|
| Input Bias Current (Typical) | 30 pA |
| Supply Current (No Load) | 2.0 mA |
| Gain Bandwidth Product | 1.2 MHz |
Source: Linear Technology LTC1052/LTC7652 Zero-Drift Operational Amplifier Handbook
All Linear Technology LTC1052 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the primary advantage of chopper-stabilized amplifiers?
They achieve significantly lower time and temperature drifts than classic differential types because DC input terms are translated to AC signals for processing.
From: Linear Technology AN9-1 Application Note for LTC1052 Chopper-Stabilized Op Amp
What technique can be used to prevent stray leakage currents from reaching amplifier inputs?
Connectors may be avoided or replaced with Teflon standoffs so the inputs never contact the PC board; alternatively, a guard trace driven at the input potential can encircle the input.
From: Linear Technology AN9-1 Application Note for LTC1052 Chopper-Stabilized Op Amp
What is the guaranteed minimum gain of the LTC1052/LTC7652?
The guaranteed minimum gain is 120 dB.
From: Linear Technology LTC1052/LTC7652 Zero-Drift Operational Amplifier Handbook
What supply voltage range can the LTC1052 operate from?
It can operate from 4.75 V to 16 V on a single supply.
From: Linear Technology LTC1052/LTC7652 Zero-Drift Operational Amplifier Handbook
What is the maximum input offset voltage of the LTC1052/LTC7652?
The maximum input offset voltage is guaranteed to be 5 µV.
What supply voltage range can the LTC1052 operate from?
The LTC1052 can operate from a single supply of 4.75 V up to 16 V.