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參數(shù)資料
| 型號： | ADE7768AR-RL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 電源管理 |
| 英文描述： | Energy Metering IC with Integrated Oscillator and Positive Power Accumulation |
| 中文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封裝： | PLASTIC, MS-012-AC, SOIC-16 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 299K |
| 代理商： | ADE7768AR-RL |
Energy Metering IC with Integrated
Oscillator and Positive Power Accumulation
ADE7768
FEATURES
On-chip oscillator as clock source
High accuracy, supports 50 Hz/60 Hz IEC62053-21
Less than 0.1% error over a dynamic range of 500 to 1
Supplies positive-only average real power on frequency
outputs F1 and F2
High frequency output CF calibrates and supplies
instantaneous, positive-only real power
Logic output REVP indicates potential miswiring or negative
power
Direct drive for electromechanical counters and 2-phase
stepper motors (F1 and F2)
Proprietary ADCs and DSPs provide high accuracy over
large variations in environmental conditions and time
On-chip power supply monitoring
On-chip creep protection (no-load threshold)
On-chip reference 2.45 V (20 ppm/°C typical) with
external overdrive capability
Single 5 V supply, low power (20 mW typical)
Low cost CMOS process
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
www.analog.com
GENERAL DESCRIPTION
The ADE7768
1
is a high accuracy, electrical energy metering IC.
It is a pin reduction version of the ADE7755, enhanced with a
precise oscillator circuit that serves as a clock source to the chip.
The ADE7768 eliminates the cost of an external crystal or
resonator, thus reducing the overall cost of a meter built with
this IC. The chip directly interfaces with the shunt resistor.
1
U.S. Patents 5,745,323; 5,760,617; 5,862,069; 5,872,469; others pending.
The ADE7768 specifications surpass the accuracy require-
ments of the IEC62053-21 standard. The
AN-679 Application
Note
can be used as a basis for a description of an IEC61036
(equivalent to IEC62053-21) low cost, watt-hour meter
reference design.
The only analog circuitry used in the ADE7768 is in the Σ-Δ
ADCs and reference circuit. All other signal processing, such as
multiplication and filtering, is carried out in the digital domain.
This approach provides superior stability and accuracy over
time and extreme environmental conditions.
The ADE7768 supplies positive-only average real power
information on the low frequency outputs, F1 and F2. These
outputs can be used to directly drive an electromechanical
counter or interface with an MCU. The high frequency CF logic
output, ideal for calibration purposes, provides instantaneous
positive-only, real power information.
The ADE7768 includes a power supply monitoring circuit on
the V
DD
supply pin. The ADE7768 remains inactive until the
supply voltage on V
DD
reaches approximately 4 V. If the supply
falls below 4 V, the ADE7768 also remains inactive and the F1,
F2, and CF outputs are in their nonactive modes.
Internal phase matching circuitry ensures that the voltage and
current channels are phase matched, while the HPF in the
current channel eliminates dc offsets. An internal no-load
threshold ensures that the ADE7768 does not exhibit creep
when no load is present. When REVP is logic high, the
ADE7768 does not generate any pulse on F1, F2, and CF.
The ADE7768 comes in a 16-lead, narrow body SOIC package.
FUNCTIONAL BLOCK DIAGRAM
MULTIPLIER
REVP
V2P
V2N
V1P
RCLKIN
REF
IN/OUT
F1
F2
CF
SCF
S0
S1
COPHASE
4k
Ω
...110101...
PRBLOCK
SUPPOWER
-
Δ
ADC
V1N
ADE7768
...11011001...
REF2.5V
V
DD
AGND
DGND
Φ
OINTERNAL
-
Δ
ADC
LPF
HPF
+
+
1
6
13
7
11
8
10
12
14
16
15
9
DIGITCONVERTER
2
3
4
5
0
Figure 1.
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| ADE7768ARZ | Energy Metering IC with Integrated Oscillator and Positive Power Accumulation |
| ADE7768ARZ-RL | Energy Metering IC with Integrated Oscillator and Positive Power Accumulation |
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| ADEL2020AR-20 | Circular Connector Cable Assembly; Connector Type A:Circular Plug; Connector Type B:Stripped End Leads; Cable Length:10ft RoHS Compliant: Yes |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADE7768ARZ | 功能描述:IC ENERGY METERING 1PHASE 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測量 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:* |
| ADE7768ARZ-RL | 功能描述:IC ENERGY METERING 1PHASE 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 能量測量 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:* |
| ADE7769 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Energy Metering IC with Integrated Oscillator and No-Load Indication |
| ADE7769AR | 制造商:Analog Devices 功能描述:Energy Measurement 16-Pin SOIC N |
| ADE7769AR-REF | 制造商:AD 制造商全稱:Analog Devices 功能描述:Energy Metering IC with Integrated Oscillator and No-Load Indication |
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