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參數(shù)資料
| 型號： | ADE7760 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 8-Channel 14-Bit Single-Supply Voltage-Output DAC; Package: LQFP (10x10mm); No of Pins: 52; Temperature Range: Industrial |
| 中文描述： | 電能計量IC片故障檢測 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大?。?/td> | 514K |
| 代理商： | ADE7760 |
Energy Metering IC with
On-Chip Fault Detection
ADE7760
FEATURES
High accuracy active energy measurement IC, supports
IEC 687/61036
Less than 0.1% error over a dynamic range of 500 to 1
Supplies active power on the frequency outputs F1 and F2
High frequency output CF is intended for calibration and
supplies instantaneous active power
Continuous monitoring of the phase and neutral current
allows fault detection in 2-wire distribution systems
Current channels input level best suited for current
transformer sensors
Uses the larger of the two currents (phase or neutral) to
bill—even during a fault condition
Two logic outputs (FAULT and REVP) can be used to indicate
a potential miswiring or fault condition
Direct drive for electromechanical counters and 2-phase
stepper motors (F1 and F2)
Proprietary ADCs and DSP provide high accuracy over large
variations in environmental conditions and time
Reference 2.5 V ± 8% (drift 30 ppm/°C typical) with external
overdrive capability
Single 5 V supply, low power
Rev.
0
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.
Tel: 781.329.4700Fax: 781.326.8703
www.analog.com GENERAL DESCRIPTION
The ADE7760 is a high accuracy, fault tolerant, electrical energy
measurement IC intended for use with 2-wire distribution
systems. The part specifications surpass the accuracy require-
ments as quoted in the IEC61036 standard.
The only analog circuitry used on the ADE7760 is in the ADCs
and reference circuit. All other signal processing (such as multi-
plication and filtering) is carried out in the digital domain. This
approach provides superior stability and accuracy over extremes
in environmental conditions and over time.
The ADE7760 incorporates a fault detection scheme similar to
the ADE7751 by continuously monitoring both the phase and
neutral currents. A fault is indicated when these currents differ
by more than 6.25%.
The ADE7760 supplies average active power information on the
low frequency outputs F1 and F2. The CF logic output gives
instantaneous active power information.
The ADE7760 includes a power supply monitoring circuit on
the V
DD
supply pin. Internal phase-matching circuitry ensures
that the voltage and current channels are matched. An internal
no-load threshold ensures that the ADE7760 does not exhibit
any creep when there is no load.
FUNCTIONAL BLOCK DIAGRAM
ADC
6
5
V
2P
V
2N
ADC
4
3
V
1B
ADC
2
V
1A
AGND
8
V
1N
2.5V
REFERENCE
INTERNAL
OSCILLATOR
9
14
17
10
11
S1
12
S0
B>A
A<>B
A>B
ADE7760
SIGNAL PROCESSING BLOCK
FAULT
15
V
DD
1
POWER
SUPPLY MONITOR
DIGITAL-TO-FREQUENCY CONVERTER
16
18
CF
19
F2
20
F1
REVP
SCF
DGND
RCLKIN
REF
IN/OUT
HPF
LPF
4k
0
Figure 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADE7760ARS | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP 制造商:Analog Devices 功能描述:ENERGY METER IC W/ ONCHIP FAULT & OSCIL. - Rail/Tube |
| ADE7760ARSRL | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP T/R 制造商:Analog Devices 功能描述:ENERGY METER IC W/ONCHIP FAULT & OSCIL. - Tape and Reel |
| ADE7761 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Energy Metering IC with On-Chip Fault and Missing Neutral Detection |
| ADE7761AARS | 制造商:Analog Devices 功能描述:Energy Measurement 20-Pin SSOP 制造商:Rochester Electronics LLC 功能描述: |
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