Characteristics & specifications, Recommended operating conditions, Analog characteristics – Cirrus Logic CS5464 User Manual
Page 7: Accuracy, Analog inputs (all inputs), Analog inputs (current inputs), Cs5464
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CS5464
DS682F3
7
3. CHARACTERISTICS & SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
ANALOG CHARACTERISTICS
• Min / Max characteristics and specifications are guaranteed over all
Recommended Operating Conditions
• Typical characteristics and specifications are measured at nominal supply voltages and TA = 25 °C.
• VA+ = VD+ = 5 V ±5%; AGND = DGND = 0 V; VREFIN = +2.5 V. All voltages with respect to 0 V.
• DCLK = 4.096 MHz.
Notes: 1. Applies when the HPF option is enabled.
2. Applies when the line frequency is equal to the product of the output word rate (OWR) and the value of
Epsilon.
Parameter
Symbol Min Typ
Max
Unit
Positive Digital Power Supply
VD+
3.135
5.0
5.25
V
Positive Analog Power Supply
VA+
4.75
5.0
5.25
V
Voltage Reference
VREFIN
-
2.5
-
V
Specified Temperature Range
T
A
-40
-
+85
°C
Parameter
Symbol Min Typ
Max
Unit
Accuracy
Active Power
All Gain Ranges
Input Range 0.1% - 100%
P
Active
-
±0.1
-
%
Reactive Power
All Gain Ranges
Input Range 0.1% - 100%
Q
Avg
-
±0.2
-
%
Power Factor
All Gain Ranges
Input Range 1.0% - 100%
Input Range 0.1% - 1.0%
PF
-
-
±0.2
±0.27
-
-
%
%
Current RMS
All Gain Ranges
Input Range 1.0% - 100%
Input Range 0.1% - 1.0%
I
RMS
-
-
±0.1
±0.17
-
-
%
%
%
Voltage RMS
All Gain Ranges
Input Range 5% - 100%
V
RMS
-
±0.1
-
%
Analog Inputs (All Inputs)
Common Mode Rejection
(DC, 50, 60 Hz)
CMRR
80
-
-
dB
Common Mode + Signal
-0.25
-
VA+
V
Analog Inputs (Current Inputs)
Differential Input Range
(Gain = 10)
[(IIN+) – (IIN-)]
(Gain = 50)
IIN
-
-
500
100
-
-
mV
P-P
mV
P-P
Total Harmonic Distortion
(Gain = 50)
THD
80
94
-
dB
Crosstalk from Voltage Input at Full Scale
(50, 60 Hz)
-
-115
-
dB
Input Capacitance
IC
-
27
-
pF
Effective Input Impedance
EII
30
-
-
k
Noise (Referred to Input)
(Gain = 10)
(Gain = 50)
N
I
-
-
-
-
22.5
4.5
µV
rms
µV
rms
Offset Drift (Without the High-pass Filter)
OD
-
4.0
-
µV/°C
Gain Error
GE
-
±0.4
%