- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄68812 > 71M6543G-IGT/F (MAXIM INTEGRATED PRODUCTS INC) SPECIALTY ANALOG CIRCUIT, PQFP100 PDF資料下載
參數(shù)資料
| 型號(hào)： | 71M6543G-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類(lèi)： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁(yè)數(shù)： | 146/157頁(yè) |
| 文件大小： | 2178K |
| 代理商： | 71M6543G-IGT/F |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)第131頁(yè)第132頁(yè)第133頁(yè)第134頁(yè)第135頁(yè)第136頁(yè)第137頁(yè)第138頁(yè)第139頁(yè)第140頁(yè)第141頁(yè)第142頁(yè)第143頁(yè)第144頁(yè)第145頁(yè)當(dāng)前第146頁(yè)第147頁(yè)第148頁(yè)第149頁(yè)第150頁(yè)第151頁(yè)第152頁(yè)第153頁(yè)第154頁(yè)第155頁(yè)第156頁(yè)第157頁(yè)
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
89
4.5
Metrology Temperature Compensation
4.5.1
Distinction Between Standard and High-Precision Parts
Since the VREF band-gap amplifier is chopper-stabilized, as set by the CHOP_E[1:0] (I/O RAM 0x2106[3:2])
control field, the dc offset voltage, which is the most significant long-term drift mechanism in the voltage
references (VREF), is automatically removed by the chopper circuit. Both the 71M6543 and the 71M6xx3
feature chopper circuits for their respective VREF voltage reference.
Since the variation in the bandgap reference voltage (VREF) is the major contributor to measurement
error across temperatures, Teridian implements a two step procedure to trim and characterize the
VREF voltage reference during the device manufacturing process.
The first step in the process is applied to both all parts (71M6543F, 71M6543H, 71M6543G,
71M6543GH). In this first step, the reference voltage (VREF) is trimmed to a target value of 1.195V.
During this trimming process, the TRIMT[7:0] (I/O RAM 0x2309) value is stored in non-volatile fuses.
TRIMT[7:0] is trimmed to a value that results in minimum VREF variation with temperature.
For the 71M6543F and 71M6543G devices (±0.5% energy accuracy), the TRIMT[7:0] value can be read
by the MPU during initialization in order to calculate parabolic temperature compensation coefficients
suitable for each individual 71M6543F and 71M6543G device. The resulting temperature coefficient for
VREF in the 71M6543F and 71M6543G is ±40 ppm/°C.
Considering the factory calibration temperature of VREF to be +22°C and the industrial temperature
range (-40°C to +85°C), the VREF error at the temperature extremes for the 71M6543F and 71M6543G
devices can be calculated as:
%
252
.
0
2520
/
40
)
22
85
(
+
=
+
=
ppm
C
ppm
C
o
and
%
248
.
0
2480
/
40
)
22
40
(
=
=
ppm
C
ppm
C
o
The above calculation implies that both the voltage and the current measurements are individually
subject to a theoretical maximum error of approximately ±0.25%. When the voltage sample and current
sample are multiplied together to obtain the energy per sample, the voltage error and current error
combine resulting in approximately ±0.5% maximum energy measurement error. However, this
theoretical ±0.5% error considers only the voltage reference (VREF) as an error source. In practice,
other error sources exist in the system. The principal remaining error sources are the current sensors
(shunts or CTs) and their corresponding signal conditioning circuits, and the resistor voltage divider
used to measure the voltage. The 71M6543F and 71M6543G 0.5% grade devices should be used in
Class 1% designs, to allow margin for the other error sources in the system.
The 71M6543H and 71M6543GH devices (±0.1% energy accuracy) goes through an additional process of
characterization during production which makes it suitable to high-accuracy applications. The additional
process is the characterization of the voltage reference (VREF) over temperature. The coefficients for the
voltage reference are stored in additional non-volatile trim fuses. The MPU can read these trim fuses
during initialization and calculate parabolic temperature compensation coefficients suitable for each
individual 71M6543H and 71M6543GH device. The resulting temperature coefficient for VREF in the
71M6543H and 71M6543GH is ±10 ppm/°C.
The VREF error at the temperature extremes for the 71M6543H and 71M6543GH devices can be
calculated as:
%
063
.
0
630
/
10
)
22
85
(
+
=
+
=
ppm
C
ppm
C
o
and
%
062
.
0
620
/
10
)
22
40
(
=
=
ppm
C
ppm
C
o
When the voltage sample and current sample are multiplied together to obtain the energy per sample,
the voltage error and current error combine resulting in approximately ±0.126% maximum energy
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 722BG | 2-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 722MG | 2-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| 73M1903-IGV | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
| 73M1903-IM | SPECIALTY CONSUMER CIRCUIT, QCC32 |
| 73M1903-IGV/F | SPECIALTY CONSUMER CIRCUIT, PQFP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6543G-IGTR/F | 功能描述:計(jì)量片上系統(tǒng) - SoC Precision Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類(lèi)型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類(lèi)型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6543GT-IGT/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Bulk |
| 71M6543GT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Tape and Reel |
| 71M6543H | 制造商:MAXIM 制造商全稱(chēng):Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
| 71M6543H-IGT/F | 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤(pán) 零件狀態(tài):停產(chǎn) 輸入阻抗:- 測(cè)量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計(jì)類(lèi)型:3 相 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:100-LQFP 供應(yīng)商器件封裝:100-LQFP（14x14） 標(biāo)準(zhǔn)包裝:90 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。