MCP3901EV-MCU16 Microchip Technology, MCP3901EV-MCU16 Datasheet - Page 17

• Manufacturer Part Number: MCP3901EV-MCU16
• Description: BOARD EVAL FOR 2CH ADC MCP3901
• Manufacturer: Microchip Technology

Specifications of MCP3901EV-MCU16

• Number Of Adc's: 2
• Number Of Bits: 24
• Data Interface: SPI™
• Inputs Per Adc: 1 Differential
• Input Range: ±1 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MCP3901
• Silicon Manufacturer: Microchip
• Application Sub Type: ADC
• Kit Application Type: Data Converter
• Silicon Core Number: MCP3901, PIC24F, PIC24H, DsPIC33, PIC18F86J55
• Kit Contents: Board
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

 2010 Microchip Technology Inc.
Figure 2-7 illustrates the error measurements in the frequency range of 48-52 Hz at
5 A
FIGURE 2-7:
Line frequency compensation is a simplified solution and does not compensate for fre-
quencies in which harmonics exist. However, it significantly improves the overall
accuracy of the meter.
There is one drawback to using this method. As demonstrated, the signal will be atten-
uated a little more than it is when the HPF has a lower cutoff frequency. This extra
attenuation slightly increases the measurement errors at low currents in which mea-
surement is made more difficult because of the lower signal-to-noise ratio (SNR). In this
situation, the accuracy decrease is less than 0.1% and is considered acceptable.
RMS
current.
-0.02
-0.04
-0.06
-0.08
0.08
0.06
0.04
0.02
-0.1
0.1
0
47
Errors vs. Line Frequency.
48
Frequency Line (Hz)
49
50
Error vs frequency
51
52
DS51915A-page 17
53