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ADE7903 데이터시트(PDF) 5 Page - Analog Devices

부품명 ADE7903
상세설명  3-Channel, Sigma-Delta ADC with SPI
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ADE7903 데이터시트(HTML) 5 Page - Analog Devices

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Data Sheet
ADE7903
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
VOLTAGE CHANNELS1
Signal-to-Noise Ratio, SNR
72
dBFS
ADC_FREQ = 8 kHz, BW = 3300 Hz
74
dBFS
ADC_FREQ = 8 kHz, BW = 2000 Hz
77
dBFS
ADC_FREQ = 2 kHz, BW = 825 Hz
79
dBFS
ADC_FREQ = 2 kHz, BW = 500 Hz
Signal-to-Noise-and-Distortion Ratio, SINAD
72
dBFS
ADC_FREQ = 8 kHz, BW = 3300 Hz
74
dBFS
ADC_FREQ = 8 kHz, BW = 2000 Hz
77
dBFS
ADC_FREQ = 2 kHz, BW = 825 Hz
78
dBFS
ADC_FREQ = 2 kHz, BW = 500 Hz
Total Harmonic Distortion, THD
−83
dBFS
ADC_FREQ = 8 kHz, BW = 3300 Hz
−83
dBFS
ADC_FREQ = 8 kHz, BW = 2000 Hz
−85
dBFS
ADC_FREQ = 2 kHz, BW = 825 Hz
−85
dBFS
ADC_FREQ = 2 kHz, BW = 500 Hz
Spurious-Free Dynamic Range, SFDR
86
dBFS
ADC_FREQ = 8 kHz, BW = 3300 Hz
86
dBFS
ADC_FREQ = 8 kHz, BW = 2000 Hz
87
dBFS
ADC_FREQ = 2 kHz, BW = 825 Hz
87
dBFS
ADC_FREQ = 2 kHz, BW = 500 Hz
CLKIN2
All specifications for CLKIN = 4.096 MHz
Input Clock Frequency
3.6
4.096
4.21
MHz
CLKIN Duty Cycle
45
50
55
%
XTAL1 Logic Inputs
Input High Voltage, VINH
2.4
V
Input Low Voltage, VINL
0.8
V
XTAL1 Total Capacitance3
40
pF
XTAL2 Total Capacitance3
40
pF
CLKOUT Delay from XTAL14
100
ns
LOGIC INPUTS—MOSI, SCLK, CS
Input High Voltage, VINH
2.4
V
Input Low Voltage, VINL
0.8
V
Input Current, IIN
0.015
1
µA
Input Capacitance, CIN
10
pF
LOGIC OUTPUTS—CLKOUT/DREADY AND MISO
Output High Voltage, VOH
2.5
V
ISOURCE = 800 µA
Output Low Voltage, VOL
0.4
V
ISINK = 2 mA
POWER SUPPLY
For specified performance
VDD Pin
2.97
3.63
V
Minimum = 3.3 V − 10%;
maximum = 3.3 V + 10%
Supply Current (IDD) 5
5.1
6.2
mA
2
mA
No CLKIN signal at XTAL1 pin
1
See the Terminology section for a definition of the parameters.
2
CLKIN is the internal clock of the ADE7903. It is the frequency at which the device is clocked at the XTAL1 pin.
3
XTAL1/XTAL2 total capacitances refer to the net capacitances on each pin. Each capacitance is the sum of the parasitic capacitance at the pin and the capacitance of
the ceramic capacitor connected between the pin and GND. See the ADE7903 Clock section for more details.
4
CLKOUT delay from XTAL1 is the delay that occurs from a high to low transition at the XTAL1 pin to a synchronous high to low transition at the CLKOUT/DREADY pin
when CLKOUT functionality is enabled.
5
Supply current specified with the two VDD pins connected externally from the same power supply (see the Pin Configuration and Function Descriptions section).
Rev. 0 | Page 5 of 28


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