71M6513/71M6513H
3-Phase Energy Meter IC
A Maxim Integrated Products Brand
DATA SHEET
SEPTEMBER 2011
Error Band (PPM) over Temperature (°C)
2800
2400
2000
1600
1200
800
±40 PPM/°C
400
0
-400
-800
-1200
-1600
-2000
-2400
-2800
±40 PPM/°C
-40
-20
0
20
40
60
80
Figure 31: Error Band for VREF over Temperature (Regular-Accuracy Parts)
Error Band (PPM) over Temperature (°C)
1000
+10 PPM/°C
800
600
400
200
0
-200
-400
-600
-800
-1000
-10 PPM/°C
-40
-20
0
20
40
60
80
Figure 32: Error Band for VREF over Temperature (High-Accuracy Parts)
Crystal Oscillator
The oscillator drives a standard 32.768 kHz watch crystal. The oscillator has been designed specifically to handle these
crystals and is compatible with their high impedance and limited power handling capability. The oscillator power dissipation is
very low to maximize the lifetime of any battery backup device attached to VBAT.
Board layouts with minimum capacitance from XIN to XOUT will require less battery current. Good layouts will have XIN and
XOUT shielded from each other.
© 2005-2011 Teridian Semiconductor Corporation
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