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STPM32 Datasheet(PDF) 17 Page - STMicroelectronics

Part # STPM32
Description  ASSP for metering applications with up to four independent 24-bit 2nd order sigma-delta ADCs, 4 MHz OSF and 2 embedded PGLNA
PDF  89 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPM32 Datasheet(HTML) 17 Page - STMicroelectronics

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7
Typical performance characteristics
Active energy error is measured at T = 25 °C, over phi (0°, 60°, -60°).
Reactive energy error is measured at T = 25 °C, over phi (90°, -90°, 60°, -60°).
Figure 12. Active energy error vs. current gain=2x
integrator off
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.01
0.1
1
10
100
Current Amplitude to Full-Scale ratio[%]
phi=0°
phi=+60°
phi=-60°
Figure 13. Active energy error vs. current gain=16x
integrator off
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
0.01
0.1
1
10
100
Current Amplitude to Full-Scale ratio [%]
phi=0°
phi=-60°
phi=+60°
Figure 14. Active energy error vs. frequency
gain=2x integrator off
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
45
50
55
60
65
Frequency[Hz]
phi=0°
phi=+60°
phi=-60°
Figure 15. Active energy error vs. frequency
gain=16x integrator off
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
45
50
55
60
65
Frequency[Hz]
phi=0°
phi=+60°
phi=-60°
STPM32, STPM33, STPM34
Typical performance characteristics
DS10272 - Rev 13
page 17/89



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