MCP3909 Microchip Technology, MCP3909 Datasheet - Page 9

• Manufacturer Part Number: MCP3909
• Description: Energy Metering IC with SPI Interface and Active Power Pulse Output
• Manufacturer: Microchip Technology

Note: Unless otherwise specified, DV
MCLK = 3.58 MHz, CH1 input = 660 mV
FIGURE 2-7:
Error (Gain = 1, PF = 1).
L
FIGURE 2-8:
Error (Gain = 1, PF = 0.5).
FIGURE 2-9:
(DC Mode, HPF off, G = 1, PF = 1).
© 2006 Microchip Technology Inc.
3000
2500
2000
1500
1000
-0.2
-0.4
-0.6
-0.8
-0.2
-0.4
-0.6
-0.8
0.8
0.6
0.4
0.2
500
0.8
0.6
0.4
0.2
-1
-1
0.0001
0.0001
1
0
1
0
0
-1.77
16,384 Samples
Mean = -1.62 mV
Std. Dev = 54.6 µV
0.0010
0.0010
CH0 Vp-p Amplitude (V)
CH0 Vp-p Amplitude (V)
-1.68
Active Power Measurement
Active Power Measurement
Channel 0 Offset Error
0.0100
0.0100
Bin (mV)
-1.59
0.1000
0.1000
DD
-40°C
- 40°C
+85°C
+85°C
, AV
P-P
-1.50
at 50 Hz, CH0 amplitude sweeps at 50 Hz.
DD
+25°C
1.0000
1.0000
+25°C
= 5V; A
GND
, D
GND
FIGURE 2-10:
(DC Mode, HPF off, G = 2, PF = 1).
FIGURE 2-11:
(DC Mode, HPF off, G = 8, PF = 1).
FIGURE 2-12:
(DC Mode, HPF Off, G = 16, PF = 1).
= 0V; V
3000
2500
2000
1500
1000
1200
1000
600
500
400
300
200
100
500
800
600
400
200
0
0
0
-1.30
REF
16384 Samples
Mean = -1.65 mV
Std. Dev = 16.99 µV
16384 Samples
Mean = - 17.91 mV
Std. Dev = - 1.22 µV
= Internal, HPF = 1 (AC mode),
-1.25
Channel 0 Offset Error
Channel 0 Offset Error
Channel 0 Offset Error
Bin (mV)
-1.23
Bin (mV)
Bin (mV)
MCP3909
-1.20
Std. Dev. = 25.1 µV
Mean = -1.20 mV
DS22025A-page 9
16384 Samples
-1.17