Analog Devices Energy Metering Products
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5
7
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AD
Energy Metering IC’s
Quality you can trust.
http://www.analog.com/energymeter/
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Analog Devices Superior Quality
All integrated circuits (IC) manufactured by Analog Devices endure a strict qualification process to ensure high
quality of our end products. Extensive qualification processes are carried out in fabrication, assembly and endproduct stages. To ensure consistent quality of our products, production samples are constantly drawn for reliability testing and failure analysis. Additionally, the results provided by our world-class Products Analysis Group on
customer returns and device qualification failures help trigger continuous product/process improvements worldwide.
LIST OF
QUALIFICATIONS
CORPORATE
STANDARD
QUALIFICATIONS
SUPPLEMENTAL
QUALIFICATIONS
Fabrication
Qualification
Customer
Feedback
Passed
Production
Quality Control
Assembly
Qualification
Application
Specific
Qualification
Passed
End-Product
Qualification
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·
·
·
·
·
·
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Time dependent dielectric breakdown
Electromigration
Hot carrier injection
Electrical endurance – HTOL & LTOL
Early life failure characterization
High temperature storage
Moisture endurance test
Die shear test
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·
·
·
·
·
·
·
·
·
·
·
·
·
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Bond strength
Burn-in sequence
Constant acceleration
Hermeticity
High temperature storage
Internal water vapor test
Lead fatigue
Lid torque
Marking permanency
Mechanical shock
Moisture sensitivity characterization
Moisture endurance sequence & autoclave
Resistance to soldering heat
Solderability
Thermal impedance
Thermal shock sequence
Temperature cycling sequence
Vibration, variable frequency
X-ray Inspection
· Fabrication & assembly qualification
· Electrical static discharge (ESD)
· Latch up
Did You Know?
Analog Devices regularly performs tests that are tailored to our products’ specific applications. For example, to answer
our customers’ question on the expected lifespan of solid-state energy meters, our AD7755 was tested and passed
3,000 hours accelerated life test (HTOL to 125°C), an equivalence of 60 years lifespan! This study clears misconceptions that a solid-state energy meter IC might have a short expected lifespan.
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Visit our website for samples, datasheets, and additional product information.
The qualification process is simply the very first step taken to ensure our quality and reliability. To ensure our
products meet the highest quality standard, Analog Devices constantly monitors the finished products. The plot
below shows the quarterly failure rate in parts per million (ppm). Please note that the electrical ppm failure is
largely comprised of marginal parametric rejects. In other words, these rejects are fully functional but are more
likely to experience early failure in the field. As you can see, the consistent rate reflects the stability of our
process. The low ppm rate also directly reflects the quality of the products our customers received. The low failure
ppm ensures the products our customers receive have virtually zero defects and low probability of early failure in
the field. Analog Devices’ Product Analysis Group works directly with customers on quality issues and provide
rapid responses to customers through correlation, analysis and corrective actions.
Quar terly Electrical Outgoing PPM Results
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"3'&
3''
3''
!3''
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Did You Know?
The quality of the product you receive depends on the overall failure rate of the lot that the part comes from. The lower
the failure rate of the lot, the better the quality of the product. The consistently low failure rate from Analog Devices’
manufacturing process shows the reliability of our products. For the latest ppm data, as well as further details on Analog
Devices’ quality system, visit the Quality Systems link in our corporate web site at http://www.analog.com/.
Analog Devices Energy Measurement Performance
AD7755 is the core of our AD775x family and is the product of choice for many meter manufacturers around the
world. It provides unsurpassed accuracy of watt calculation over a very wide dynamic range. The plots below
highlight the performance of AD7755 over a dynamic range of 1000:1 and temperature range of –40°C to 85°C.
Even at low power factor (PF=0.5), as shown on the plot on the right, AD7755 maintains its accuracy.
0.5
0.4
0.4
- 40 ⴗC
- 40 ⴗC PF = 0.5
0.2
0.3
0.1
PF = 1
GAIN = 16
ON-CHIP REFERENCE
0.0
+25 ⴗC PF = 1
% ERROR
% ERROR
0.2
+25 ⴗC
0.0
-0.1
-0.2
+85 ⴗC
-0.2
+25 ⴗC PF = 0.5
-0.4
+85 ⴗC PF = 0.5
-0.6
-0.3
-0.8
-0.4
-0.5
0.01
0.1
1
Amps
10
100
-1.0
0.01
PF = 0.5
GAIN = 16
ON-CHIP REFERENCE
0.1
http://www.analog.com/energymeter/
1
Amps
10
100
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Another main reason why many manufacturers choose AD7755 is its
ease of use. A single calibration point, typically at Ib (basic current),
is all that is needed to calibrate the meter. The AD7755 needs a
single 5V voltage supply, and it provides direct drive capability to a
mechanical counter. The AD7755 can also interface with very low
resistance shunt. The circuitry needed for a meter is very simple.
Shown on the right is our solid-state watt-meter reference design. The
full documentation of this meter, Application Note AN-559, can be
found in our web site. The reference design is provided to help our
customer shorten the design cycle. Please visit our web site for
further details.
Energy Measurement ICs: Now and the Future
Product Introductions Vs. Integrated Circuit Functionality
3 Phase
Multiple
Function
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ADSP2185L
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AD73360L
AD7758
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AD73360
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ADuC812SBRU
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3 Phase
Watts
ADuC812
ADSPADSP- 2185L
Single chip 3.3V DSP Microcomputer
AD73360
Six 16 bit Σ−∆ ADCs
AD73360L
Low power AD73360
AD7758
AD7754 + Reactive Power
ADuC812
8ch, 12 bit ADC, Flash, 8052
ADuC812SBRU ADuC812 Pin Count Reduction
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AD7754
AD7756 with Six Input Channels
AD7754
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1 Phase
MCU-Based
Design
AD7753
1 Phase
Single Chip
Design
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AD7756
AD7759
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AD7751
AD7752
AD7756
AD7755 with SPI(Serial Port Interface)
AD7759
AD7756 with di/dt Input
AD7753
AD7756 + Reactive Power
A D7755
Core AD775X product with Motor Drive
AD7751
AD7755 + Fault Tolerance
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AD7757
AD7755 + Integrated Oscillator
AD7750
AD7755
AD7757
AD7752
AD7751 + Digital Calibration
PrePre-2001
2001
PostPost-2001
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Released
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Sample
Introduction
WORLDWIDE HEADQUARTERS
One Technology Way, P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A.
Tel: (781) 461-3060 • Fax: (781) 461-4360 • World Wide Web Site: http://www.analog.com
JAPAN HEADQUARTERS
New Pier Takeshiba, South Tower Building
1-16-1 Kaigan, Minato-ku,
Tokyo 105-6891, Japan
Tel: 81-3-5402-8200
Fax: 81-3-5402-1063
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EUROPE HEADQUARTERS
Am Westpark 1-3
D-81373 Munchen,
Germany
Tel: 49-89-76903-0
Fax: 49-89-76903-157
SOUTHEAST HEADQUARTERS
4501 Nat West Tower, Times Square
Causeway Bay,
Hong Kong
Tel: (852) 2506-9336
Fax: (852) 2506-4755
Visit our website for samples, datasheets, and additional product information.
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