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參數(shù)資料
| 型號： | LTC1966 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Precision Micropower, SIGMA RMS-to-DC Converter |
| 中文描述： | 精密微，適馬有效值- DC轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 444K |
| 代理商： | LTC1966 |
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LTC1966
sn1966 1966fas
Precision Micropower,
Σ
RMS-to-DC Converter
DESCRIPTIOU
I
No-Hassle Simplicity:
True RMS-DC Conversion with Only One External
Capacitor
Delta Sigma Conversion Technology
I
High Accuracy:
0.1% Gain Accuracy from 50Hz to 1kHz
0.25% Total Error from 50Hz to 1kHz
I
High Linearity:
0.02% Linearity Allows Simple System Calibration
I
Low Supply Current:
155
μ
A Typ, 170
μ
A Max
I
Ultralow Shutdown Current:
0.1
μ
A
I
Constant Bandwidth:
Independent of Input Voltage
800kHz –3dB, 6kHz
±
1%
I
Flexible Supplies:
2.7V to 5.5V Single Supply
Up to
±
5.5V Dual Supply
I
Flexible Inputs:
Differential or Single Ended
Rail-to-Rail Common Mode Voltage Range
Up to 1V
PEAK
Differential Voltage
I
Flexible Output:
Rail-to-Rail Output
Separate Output Reference Pin Allows Level Shifting
I
Small Size:
Space Saving 8-Pin MSOP Package
I
True RMS Digital Multimeters and Panel Meters
I
True RMS AC + DC Measurements
, LTC and LT are registered trademarks of Linear Technology Corporation.
Protected under U.S. Patent Numbers 6,359,576 and 6,362,677
FEATURES
APPLICATIU
The LTC
1966 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 sim-
pler 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. Differ-
ential input range is 1V
PEAK
, and offers unprecedented lin-
earity. 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 0.5
μ
A.
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.
Single Supply RMS-to-DC Converter
C
AVE
1
μ
F
V
OUT
+
–
1966 TA01
2.7V TO 5.5V
OUTPUT
DIFFERENTIAL
INPUT
LTC1966
OUT RTN
V
DD
0.1
μ
F
OPT. AC
COUPLING
V
SS
EN
GND
IN1
IN2
TYPICAL APPLICATIO
U
V
IN
(mV AC
RMS
)
–1.0
L
O
I
R
)
–0.6
–0.2
0.2
–0.8
–0.4
0
100
200
300
400
1966 TA01b
500
50
0
150
250
350
450
LTC1966,
Σ
60Hz SINEWAVES
CONVENTIONAL
LOG/ANTILOG
Quantum Leap in Linearity Performance
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1966CMS8 | Precision Micropower, SIGMA RMS-to-DC Converter |
| LTC1967 | Precision Extended Bandwidth, RMS-to-DC Converter |
| LTC1967CMS8 | Precision Extended Bandwidth, RMS-to-DC Converter |
| LTC1967IMS8 | Precision Extended Bandwidth, RMS-to-DC Converter |
| LTTJ | Precision Extended Bandwidth, RMS-to-DC Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1966CMS8 | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1966CMS8#PBF | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1966CMS8#TR | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:否 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1966CMS8#TRPBF | 功能描述:IC PREC RMS/DC CONV MCRPWR 8MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - RMS 至 DC 轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:46 系列:- 電流 - 電源:1.2mA 電源電壓:±18 V，36 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC W 包裝:管件 |
| LTC1966CMS8PBF | 制造商:Linear Technology 功能描述:RMS-to-DC Converter Prec. uPower MSOP8 |
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