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LTC1966IMS8 DataSheet

LTC1966IMS8 DataSheet

Part No.
LTC1966IMS8
Part Marking
LTTH
Temperature
–40°C to 85°C
Package
8-Lead Plastic MSOP
File Size
360 KB
Page
38 Pages
Manufacturer
Linear Technology
Views
2
Upload Time
2022-06-22 11:44:30
Update Time
2022-06-22
Description
IC RMS TO DC CONVERTER 8MSOP
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LTC1966IMS8 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

LTC1966IMS8 Applications

■ True RMS Digital Multimeters and Panel Meters
■ True RMS AC + DC Measurements

LTC1966IMS8 Description

The LTC1966IMS8 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 LTC1966IMS8 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 LTC1966IMS8 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 LTC1966IMS8 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.

Related LTC1966IMS8 Datasheet

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