LTC1968 - LTC1968是精准宽带宽、RMS 至 DC 转换器

LTC1968是LINEAR凌力尔特公司的一款RMS-DC 转换产品，LTC1968是LTC1968是精准宽带宽、RMS 至 DC 转换器，本站介绍了LTC1968的封装应用图解、特点和优点、功能等，并给出了与LTC1968相关的LINEAR元器件型号供参考。

LTC1968 - LTC1968是精准宽带宽、RMS 至 DC 转换器 - RMS-DC 转换 - 信号调理 - 凌力尔特

LTC1968 - 精准宽带宽、RMS 至 DC 转换器

LTC1968 - 精准宽带宽、RMS 至 DC 转换器 - Linear Technology（凌力尔特）

功能描述

The LTC1968 is a true RMS-to-DC converter that uses an innovative delta-sigma computational technique. The benefits of the LTC1968 proprietary architecture, when compared to conventional log-antilog RMS-to-DC converters, are higher linearity and accuracy, bandwidth independent of amplitude and improved temperature behavior.

The LTC1968 operates with single-ended or differential input signals and accurately supports crest factors up to 4. Common mode input range is rail-to-rail. Differential input range is 1VPEAK, and offers unprecedented linearity. The LTC1968 allows hassle-free system calibration at any input voltage.

The LTC1968 has a rail-to-rail output with a separate output reference pin providing flexible level shifting; it operates on a single power supply from 4.5V to 5.5V. A low power shutdown mode reduces supply current to 0.1μA.

The LTC1968 is packaged in the space-saving MSOP package, which is ideal for portable applications.

特点

High Linearity:0.02% Linearity Allows Simple System Calibration

Wide Input Bandwidth:Bandwidth to 1% Additional Gain Error: 500kHzBandwidth to 0.1% Additional Gain Error: 150kHz3dB Bandwidth Independent of Input Voltage Amplitude

No-Hassle Simplicity:True RMS-DC Conversion with Only One External CapacitorDelta Sigma Conversion Technology

Ultralow Shutdown Current:0.1μA

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

应用

True RMS Digital Multimeters and Panel Meters

True RMS AC + DC Measurements

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）

器件型号	封装	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量)
LTC1968CMS8	MS-8	C	$5.21	$3.95
LTC1968CMS8#PBF	MS-8	C	$5.21	$3.95
LTC1968CMS8#TR	MS-8	C		$4.01
LTC1968CMS8#TRPBF	MS-8	C		$4.01
LTC1968IMS8	MS-8	I	$8.80	$6.60
LTC1968IMS8#PBF	MS-8	I	$8.80	$6.60
LTC1968IMS8#TR	MS-8	I		$6.66
LTC1968IMS8#TRPBF	MS-8	I		$6.66

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LTC1968 - LTC1968是 精准宽带宽、RMS 至 DC 转换器

LTC1968 - LTC1968是精准宽带宽、RMS 至 DC 转换器