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LTC1966

Features: No-Hassle Simplicity:True RMS-DC Conversion with Only One ExternalCapacitorDelta Sigma Conversion Technology High Accuracy:0.1% Gain Accuracy from 50Hz to 1kHz0.25% Total Error from 50Hz to 1kHz High Linearity:0.02% Linearity Allows Simple System Calibratio Low Supply Current:155µ...

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SeekIC No. : 004401963 Detail

LTC1966: Features: No-Hassle Simplicity:True RMS-DC Conversion with Only One ExternalCapacitorDelta Sigma Conversion Technology High Accuracy:0.1% Gain Accuracy from 50Hz to 1kHz0.25% Total Error from 50Hz ...

LTC1966 Data Sheet

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Part Number:
LTC1966
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

No-Hassle Simplicity:True RMS-DC Conversion with Only One ExternalCapacitorDelta Sigma Conversion Technology
High Accuracy:0.1% Gain Accuracy from 50Hz to 1kHz0.25% Total Error from 50Hz to 1kHz
High Linearity:0.02% Linearity Allows Simple System Calibratio
Low Supply Current:155µA Typ, 170µA Max
Ultralow Shutdown Current:0.1µA
Constant Bandwidth:Independent of Input Voltage800kHz 3dB, 6kHz ±1%
Flexible Supplies:2.7V to 5.5V Single SupplyUp to ±5.5V Dual Supply
Flexible Inputs:Differential or Single EndedRail-to-Rail Common Mode Voltage RangeUp to 1VPEAK Differential Voltage
Flexible Output:Rail-to-Rail OutputSeparate Output Reference Pin Allows Level  Shifting
Small Size:Space Saving 8-Pin MSOP Package


Application

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


Pinout

Connection Diagram


Specifications

Supply Voltage
VDD to GND ....................................................  0.3 to 7V
VDD to VSS ................................................  0.3V to 12V
VSS to GND...................................................  7V to 0.3V
Input Currents (Note 2) ......................................  ±10mA
Output Current (Note 3) .....................................  ±10mA
ENABLE Voltage .......................  VSS 0.3V to VSS + 12V
OUT RTN Voltage .................................  VSS 0.3V to VDD
Operating Temperature Range (Note 4)
LTC1966C/LTC1966I .............................  40°C to 85°C
Specified Temperature Range (Note 5)
LTC1966C/LTC1966I ......................... .... 40°C to 85°C
Maximum Junction Temperature ...........................  150°C
Storage Temperature Range ............ .. 65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................  300°C


Description

The LTC®1966 is a true RMS-to-DC converter that utilizesan innovative patented ∆ computational technique. Theinternal delta-sigma circuitry of the LTC1966 makes it sim-pler to use, more accurate, lower power and dramaticallymore flexible than conventional log-antilog RMS-to-DCconverters.

The LTC1966 accepts single ended or differential inputsignals (for EMI/RFI rejection) and supports crest factorsup to 4. Common mode input range is rail-to-rail. Differ-ential input range is 1VPEAK, and offers unprecedented lin-earity. Unlike previously available RMS-to-DC converters,the superior linearity of the device allows hassle-freesystem calibration at any input voltage.

The device also has a rail-to-rail output with a separateoutput reference pin providing flexible level shifting. TheLTC1966 operates on a single power supply from 2.7V to5.5V or dual supplies up to ±5.5V. A low power shutdownmode reduces supply current to 0.5µA.

The LTC1966 is insensitive to PC board soldering andstresses, as well as operating temperature. The device is packaged in the space-saving MSOP package which isideal for portable applications.




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