Description:
The LTC1966 is a true RMS-to-DC converter Module.
The internal delta-sigma circuitry to use,more accurate, lower power and dramatically more flexible than conventional log-antilog RMS-to-DCconverl ers.
The LTC1966 accepts single ended or differential inputsignals (for EM/RFI rejection) and supports crest factors up to 4.
Common mode input range is rail-to-rail. Differ-ential input range is 1VpEAK, and offers unprecedented lin-earity. Unlike previouslyavailable RMS-to-DCconverters, 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 separateoutput reference pin providing flexible levei shitting. TheLTC1966 operates on a single power supply from 2.7V to 5.5V or dual supplies up to ±5.5V. Alow power shut down mode reduces supply current to 0.5uA.
The LTC1966 is insensitive to PC board soldering andstresses, as well as operating temperature.
Features:
No-Hassle Simplicity:
True RMS-DC Conversion with Only One External Capacitor
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: 155uA Typ,170uA Max
Ultralow Shutdown Current: 0.1yA
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
Package Include:
1 x CJMCU-6668 LTC1966 Precision Micropower RMS to DC Converter Module
The LTC1966 is a true RMS-to-DC converter Module.
The internal delta-sigma circuitry to use,more accurate, lower power and dramatically more flexible than conventional log-antilog RMS-to-DCconverl ers.
The LTC1966 accepts single ended or differential inputsignals (for EM/RFI rejection) and supports crest factors up to 4.
Common mode input range is rail-to-rail. Differ-ential input range is 1VpEAK, and offers unprecedented lin-earity. Unlike previouslyavailable RMS-to-DCconverters, 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 separateoutput reference pin providing flexible levei shitting. TheLTC1966 operates on a single power supply from 2.7V to 5.5V or dual supplies up to ±5.5V. Alow power shut down mode reduces supply current to 0.5uA.
The LTC1966 is insensitive to PC board soldering andstresses, as well as operating temperature.
Features:
No-Hassle Simplicity:
True RMS-DC Conversion with Only One External Capacitor
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: 155uA Typ,170uA Max
Ultralow Shutdown Current: 0.1yA
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
Package Include:
1 x CJMCU-6668 LTC1966 Precision Micropower RMS to DC Converter Module
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