User guide

CS5480
DS980F3 11
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 T
A
= 25°C.
• VDDA = +3.3V ±10%; GNDA = GNDD = 0V. All voltages with respect to 0V.
• MCLK = 4.096MHz.
Parameter Symbol Min Typ Max Unit
Analog Inputs (Current Channels)
Common Mode Rejection
(DC, 50, 60Hz) CMRR 80 - - dB
Common Mode+Signal -0.25 - VDDA V
Differential Full-scale Input Range
(Gain = 10)
[(IIN+) – (IIN-)] (Gain = 50)
IIN
-
-
250
50
-
-
mV
P
mV
P
Total Harmonic Distortion (Gain = 50) THD 90 100 - dB
Signal-to-Noise Ratio (SNR)
(Gain = 10)
(Gain = 50)
SNR
-
-
80
80
-
-
dB
dB
Crosstalk from Voltage Inputs at Full Scale
(50, 60Hz) --115-dB
Crosstalk from Current Input at Full Scale
(50, 60Hz) --115-dB
Input Capacitance IC - 27 - pF
Effective Input Impedance EII 30 - - k
Offset Drift (Without the High-pass Filter) OD - 4.0 - µV/°C
Noise (Referred to Input)
(Gain = 10)
(Gain = 50)
N
I
-
-
15
3.5
-
-
µV
RMS
µV
RMS
Power Supply Rejection Ratio (60Hz)
(Note 7) (Gain = 10)
(Gain = 50)
PSRR 60
68
65
75
-
-
dB
dB
Analog Inputs (Voltage Channels)
Common Mode Rejection
(DC, 50, 60Hz) CMRR 80 - - dB
Common Mode+Signal -0.25 - VDDA V
Differential Full-scale Input Range
[(VIN+) – (VIN-)] VIN - 250 - mV
P
Total Harmonic Distortion THD 80 88 - dB
Signal-to-Noise Ratio (SNR) SNR - 73 - dB
Crosstalk from Current Inputs at Full Scale
(50, 60Hz) --115-dB
Input Capacitance IC - 2.0 - pF
Effective Input Impedance EII 2 - - M
Noise (Referred to Input) N
V
-40-µV
RMS
Offset Drift (Without the High-pass Filter) OD - 16.0 - µV/°C
Power Supply Rejection Ratio
(60Hz)
(Note 7) (Gain = 10x)
PSRR
60 65 - dB
Temperature
Temperature Accuracy
(Note 6) T-±5-°C