ade7880 Analog Devices, Inc., ade7880 Datasheet - Page 7

• Manufacturer Part Number: ade7880
• Description: Polyphase Multifunction Energy Metering Ic With Harmonic Monitoring
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
Parameter
WAVEFORM SAMPLING
TIME INTERVAL BETWEEN PHASES
CF1, CF2, CF3 PULSE OUTPUTS
REFERENCE INPUT
ON-CHIP REFERENCE
CLKIN
LOGIC INPUTS—MOSI/SDA, SCLK/SCL, SS ,
LOGIC OUTPUTS— IRQ0 , IRQ1 , AND
POWER SUPPLY
ADC Offset Error
Gain Error
Current and Voltage Channels
Bandwidth (−3 dB)
Measurement Error
Maximum Output Frequency
Duty Cycle
Active Low Pulse Width
Jitter
REF
Input Capacitance
PSM0 and PSM1 Modes
Input Clock Frequency
Crystal Equivalent Series Resistance
CLKIN Load Capacitor
CLKOUT Load Capacitor
RESET , PM0, AND PM1
Input High Voltage, V
Input Low Voltage, V
Input Capacitance, C
MISO/HSD
CF1, CF2, CF3/HSCLK
PSM0 Mode
VN Pin
Signal-to-Noise Ratio, SNR
Signal-to-Noise-and-Distortion Ratio,
Reference Error
Output Impedance
Temperature Coefficient
Input Current, I
Output High Voltage, V
Output Low Voltage, V
Output High Voltage, V
Output Low Voltage, V
IN/OUT
SINAD
1, 2
Input Voltage Range
IN
INL
IN
INH
3
3
OL
OL
OH
OH
Min
130
1.1
1.2
16.22
30
2.4
3.0
2.4
Typ
±2
±4
TBD
TBD
3.3
0.3
68.818
50
(1 + 1/CFDEN)
× 50%
80
0.04
10
16.384
20
20
Rev. PrE | Page 7 of 103
Max
1.3
10
±2
50
16.55
200
40
40
0.8
±3
10
0.4
0.4
Unit
kΩ
mV
%
dB
dB
kHz
Degrees
kHz
%
ms
%
V
pF
mV
kΩ
ppm/°C
MHz
Ω
pF
pF
V
V
µA
pF
V
V
V
V
Test Conditions/Comments
PGA = 1, uncalibrated error, see the
Terminology section
External 1.2 V reference
Sampling CLKIN/2048, 16.384 MHz/2048 =
8 kSPS
See the Waveform Sampling Mode section
PGA = 1
PGA = 1
Line frequency = 45 Hz to 65 Hz, HPF on
WTHR = VARTHR = VATHR = 3
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is even and > 1
If CF1, CF2, or CF3 frequency > 6.25 Hz and
CFDEN is odd and > 1
If CF1, CF2, or CF3 frequency < 6.25 Hz
For CF1, CF2, or CF3 frequency = 1 Hz and
nominal phase currents are larger than 10%
of full scale
Minimum = 1.2 V − 8%; maximum = 1.2 V + 8%
Nominal 1.207 V at the REF
All specifications CLKIN of 16.384 MHz
VDD = 3.3 V ± 10%
VDD = 3.3 V ± 10%
Typical 10nA, V
VDD = 3.3 V ± 10%
I
I
For specified performance
SOURCE
SINK
I
I
SOURCE
SINK
=2mA
=8mA
=800µA
=500µA
IN
=0V to VDD
IN/OUT
pin at T
ADE7880
A
= 25°C