LTC1966
Info: : PRODUCTION
searchIcon
cartIcon

LTC1966

Precision Micropower ΔΣ RMS-to-DC Converter

Show More showmore-icon

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 8
1ku List Price Starting From $3.89
Features
  • Simple to Use, Requires One Capacitor
  • True RMS DC Conversion Using ∆Σ Technology
  • High Accuracy:
    • 0.1% Gain Accuracy from 50Hz to 1kHz
    • 0.25% Total Error from 50Hz to 1kHz
  • High Linearity:
    • 0.02% Linearity Allows Simple System Calibration
  • Low Supply Current:
    • 155μA Typ, 170μA Max
  • Ultralow Shutdown Current:
    • 0.1μA
  • Constant Bandwidth:
    • Independent of Input Voltage
    • 800kHz –3dB, 6kHz ±1%
  • Flexible Supplies:
    • 2.7V to 5.5V Single Supply
    • Up to ±5.5V Dual Supply
  • 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
  • Wide Temperature Range:
    • –55°C to 125°C
  • Small Size:
    • Space Saving 8-Pin MSOP Package
Additional Details
show more Icon

The LTC1966 is a true RMS-to-DC converter that utilizes an innovative patented ∆Σ computational technique. The internal delta sigma circuitry of the LTC1966 makes it simpler to use, more accurate, lower power and dramatically more flexible than conventional log antilog RMS-to-DC converters.

The LTC1966 accepts 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. Unlike previously available RMS-to-DC converters, the superior linearity of the LTC1966 allows hassle free system calibration at any input voltage.

The LTC1966 also has a rail-to-rail output with a separate output reference pin providing flexible level shifting. The LTC1966 operates on a single power supply from 2.7V to 5.5V or dual supplies up to ±5.5V. A low power shutdown mode reduces supply current to 0.5μA.

The LTC1966 is insensitive to PC board soldering and stresses, as well as operating temperature. The LTC1966 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
Part Models 8
1ku List Price Starting From $3.89

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC1966CMS8#PBF
  • HTML
  • HTML
LTC1966CMS8#TRPBF
  • HTML
  • HTML
LTC1966HMS8#PBF
  • HTML
  • HTML
LTC1966HMS8#TRPBF
  • HTML
  • HTML
LTC1966IMS8#PBF
  • HTML
  • HTML
LTC1966IMS8#TRPBF
  • HTML
  • HTML
LTC1966MPMS8#PBF
  • HTML
  • HTML
LTC1966MPMS8#TRPBF
  • HTML
  • HTML

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC1966CMS8#PBF

PRODUCTION

LTC1966CMS8#TRPBF

PRODUCTION

LTC1966HMS8#PBF

PRODUCTION

LTC1966HMS8#TRPBF

PRODUCTION

LTC1966IMS8#PBF

PRODUCTION

LTC1966IMS8#TRPBF

PRODUCTION

LTC1966MPMS8#PBF

PRODUCTION

LTC1966MPMS8#TRPBF

PRODUCTION

Feb 3, 2020

- 20_0128

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1966CMS8#PBF

PRODUCTION

LTC1966CMS8#TRPBF

PRODUCTION

LTC1966HMS8#PBF

PRODUCTION

LTC1966HMS8#TRPBF

PRODUCTION

LTC1966IMS8#PBF

PRODUCTION

LTC1966IMS8#TRPBF

PRODUCTION

LTC1966MPMS8#PBF

PRODUCTION

LTC1966MPMS8#TRPBF

PRODUCTION

Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Oct 11, 2022

- 22_0244

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP Package

LTC1966CMS8#PBF

PRODUCTION

LTC1966CMS8#TRPBF

PRODUCTION

LTC1966HMS8#PBF

PRODUCTION

LTC1966HMS8#TRPBF

PRODUCTION

LTC1966IMS8#PBF

PRODUCTION

LTC1966IMS8#TRPBF

PRODUCTION

LTC1966MPMS8#PBF

PRODUCTION

LTC1966MPMS8#TRPBF

PRODUCTION

Feb 3, 2020

- 20_0128

arrow down

Laser Top Mark for 8 Lead MSOP Packages Assembled in ADPG and UTAC

LTC1966CMS8#PBF

PRODUCTION

LTC1966CMS8#TRPBF

PRODUCTION

LTC1966HMS8#PBF

PRODUCTION

LTC1966HMS8#TRPBF

PRODUCTION

LTC1966IMS8#PBF

PRODUCTION

LTC1966IMS8#TRPBF

PRODUCTION

LTC1966MPMS8#PBF

PRODUCTION

LTC1966MPMS8#TRPBF

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

Tools & Simulations

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

Recently Viewed