Overview
Features and Benefits
- High Linearity:
- 0.02% Linearity Allows Simple System Calibration
- Wide Input Bandwidth:
- Bandwidth to 0.1% Additional Gain Error: 40kHz
- Bandwidth Independent of Input Voltage Amplitude
- No-Hassle Simplicity:
- True RMS-DC Conversion with Only One External Capacitor
- Delta Sigma Conversion Technology
- Low Supply Current:
- 330µA Typ
- Ultralow Shutdown Current:
- 0.1µA
- Flexible Inputs:
- Differential or Single Ended
- Rail-to-Rail Common Mode Voltage Range
- Up to 1VPEAK Differential Voltage
- Flexible Output:
- Rail-to-Rail Output
- Separate Output Reference Pin Allows Level Shifting
- Small Size:
- Space Saving 8-Pin MSOP Package
Product Details
The LTC1967 is a true RMS-to-DC converter that uses an innovative delta-sigma computational technique. The benefits of the LTC1967 proprietary architecture when compared to conventional log-antilog RMS-to-DC converters are higher linearity and accuracy, bandwidth independent of amplitude and improved temperature behavior.
The LTC1967 operates with single-ended or differential input signals (for EMI/RFI rejection) and supports crest factors up to 4. Common mode input range is rail-to-rail. Differential input range is 1VPEAK, and offers unprecedented linearity. The LTC1967 allows hassle-free system calibration at any input voltage.
The LTC1967 has a rail-to-rail output with a separate output reference pin providing flexible level shifting; it operates on a single power supply from 4.5V to 5.5V. A low power shutdown mode reduces supply current to 0.1µA.
The LTC1967 is packaged in the space-saving MSOP package, which is ideal for portable applications.
Applications
- True RMS Digital Multimeters and Panel Meters
- True RMS AC + DC Measurements
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
-
R415 Reliability Data3/23/2018
-
DC427B - Demo Manual9/24/2009
-
Audio Spectrum Analyzer with the Linduino4/12/2016
-
Accurate and Simple AC Measurement to 500kHz8/1/2004 LT Journal
Tools & Simulations
LTspice
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.
Models for the following parts are available in LTspice:
LTC1967
Product Recommendations
LTC1967 Companion Parts
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTC1967CMS8#PBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
| LTC1967CMS8#TRPBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
| LTC1967IMS8#PBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
| LTC1967IMS8#TRPBF | Material Declaration | Reliability Data | 8-Lead MSOP | |
| Wafer Fabrication Data | R415 Reliability Data |
PCN-PDN Information
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Sample & Buy
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.