LTC1966-Precision Micropower,

LTC1966描述
The LTC®1966 is a true RMS-to-DC converter that utilizes an innovative patented Delta Sigma 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.

LTC1966特点
Click Here for LTC1966 Evaluation Kit
No-Hassle Simplicity: True RMS-DC Conversion with Only One External
Capacitor
Delta Sigma Conversion 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: 155mA Typ, 170mA Max
Ultralow Shutdown Current: 0.1mA
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
Small Size: Space Saving 8-Pin MSOP Package

Typical Application

LTC1966封装
MSOP-8

LTC1966应用
True RMS Digital Multimeters and Panel Meters
True RMS AC + DC Measurements