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ADE7768 データシート(Datasheet) 4 Page - Analog Devices

部品番号. ADE7768
部品情報  Energy Metering IC with Integrated Oscillator and Positive Power Accumulation
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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ADE7768
Rev. A | Page 4 of 20
Parameter
Value
Unit
Test Conditions/Comments
POWER SUPPLY
For specified performance
VDD
4.75
V min
5 V – 5%
5.25
V max
5 V + 5%
IDD
5
mA max
Typically 4 mA
1 See the Terminology section for an explanation of specifications.
2 See the figures in the Typical Performance Characteristics section.
3 Sample tested during initial release and after any redesign or process change that may affect this parameter.
TIMING CHARACTERISTICS
VDD = 5 V ± 5%, AGND = DGND = 0 V, on-chip reference, RCLKIN = 6.2 kΩ, 0.5% ± 50 ppm/°C, TMIN to TMAX = –40°C to +85°C,
unless otherwise noted. Sample tested during initial release and after any redesign or process change that may affect this parameter.
See Figure 2.
Table 2.
Parameter
Specifications
Unit
Test Conditions/Comments
t11
120
ms
F1 and F2 pulse width (logic low)
t2
See Table 6
sec
Output pulse period. See the Transfer Function section.
t3
1/2 t2
sec
Time between the F1 and F2 falling edges.
t41, 2
90
ms
CF pulse width (logic high).
t5
See Table 7
sec
CF pulse period. See the Transfer Function section.
t6
2
μs
Minimum time between the F1 and F2 pulses.
1 The pulse widths of F1, F2, and CF are not fixed for higher output frequencies. See the Frequency Outputs section.
2 The CF pulse is always 35 μs in high frequency mode. See the Frequency Outputs section and Table 7.
F1
F2
CF
t1
t5
t4
t2
t6
t3
Figure 2. Timing Diagram for Frequency Outputs




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