AD71056ARZ-RL Analog Devices Inc, AD71056ARZ-RL Datasheet
AD71056ARZ-RL
Specifications of AD71056ARZ-RL
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AD71056ARZ-RL Summary of contents
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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 average real power on frequency outputs (F1, F2) High frequency output (CF) calibrates and ...
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AD71056 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Timing Characteristics ................................................................ 4 Absolute Maximum Ratings............................................................ 5 ESD Caution.................................................................................. 5 Terminology ...................................................................................... 6 Pin Configuration and Function ...
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SPECIFICATIONS ± 5%, AGND = DGND = 0 V, on-chip reference, RCLKIN = 6.2 kΩ, 0.5% ± 50 ppm/° otherwise noted. Table 1. Parameter , ACCURACY Measurement Error on Channel V1 ...
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AD71056 Parameter POWER SUPPLY See the Terminology section for an explanation of specifications. 2 See plots in the Typical Performance Characteristics section. 3 See the Analog Inputs section. 4 Sample tested during initial release and ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 3. Parameter V to AGND DGND DD Analog Input Voltage to AGND V1P, V1N, V2P, and V2N Reference Input Voltage to AGND Digital Input Voltage to ...
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AD71056 TERMINOLOGY Measurement Error The error associated with the energy measurement made by the AD71056 is defined by the following formula: Energy Registered by AD71056 = % Error True Energy Phase Error Between Channels The high-pass filter (HPF) in the ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 4. Pin Function Descriptions Pin No. Mnemonic Description 1 V Power Supply. This pin provides the supply voltage for the circuitry in the AD71056. Maintain the supply DD voltage ± 5% ...
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AD71056 TYPICAL PERFORMANCE CHARACTERISTICS 220V 40A TO 40mA 350µΩ 1 0.8 ON-CHIP REFERENCE 0.6 0.4 0.2 +25°C 0 –0.2 –0.4 –0.6 –0.8 –1.0 0.1 1 CURRENT CHANNE Full Scale) Figure 5. Error as a ...
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PF = 0.5 IND 0.1 0 –0.1 –0 0.5 CAP –0.3 –0.4 –0 FREQUENCY (Hz) Figure 9. Error Reading over Input Frequency 1.0 ...
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AD71056 THEORY OF OPERATION The two ADCs in the AD71056 digitize the voltage signals from the current and voltage sensors. These ADCs are 16-bit, Σ-Δ with an oversampling rate of 450 kHz. This analog input struc- ture greatly simplifies sensor ...
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sin h t β ≠ where: i(t) is the instantaneous current the dc component ...
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AD71056 APPLICATIONS ANALOG INPUTS Channel V1 (Current Channel) The voltage output from the current sensor is connected to the AD71056 at Channel V1. Channel fully differential voltage input. V1P is the positive input with respect to V1N. ...
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POWER SUPPLY MONITOR The AD71056 contains an on-chip power supply monitor. The power supply ( continuously monitored by the AD71056 the supply is less than 4 V, the AD71056 becomes inactive. This is useful to ensure ...
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AD71056 Digital-to-Frequency Conversion As previously described, the digital output of the low-pass filter after multiplication contains the real power information. However, because this LPF is not an ideal brick wall filter implementation, the output signal also contains attenuated components at ...
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The energy consumed during an integration period is given by Counter = × = Energy Average Power Time Time For the purpose of calibration, this integration time can be as long as 10 seconds to 20 seconds to accumulate enough ...
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AD71056 Table 6. Maximum Output Frequency on the F1 and F2 Pins S1 S0 OSC Relation Max Frequency 0 0 0.204 × f 0.175 0.204 × 0.204 × ...
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The CF output frequencies are given in Table 7. As with F1 and F2, if the period the CF pulse width is set to half the period. If the CF frequency, for example, is ...
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... COPLANARITY 0.10 ORDERING GUIDE Model Temperature Range AD71056AR −40°C to +85°C AD71056AR-RL −40°C to +85°C 1 AD71056ARZ −40°C to +85°C 1 AD71056ARZ-RL −40°C to +85° Pb-free part. 10.00 (0.3937) 9.80 (0.3858 6.20 (0.2441) 1 5.80 (0.2283) 8 1.27 (0.0500) BSC 1 ...
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NOTES Rev Page AD71056 ...
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AD71056 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D05636-0-8/06(A) Rev Page ...